(stable) Promote 2016 Week 31

resources/celerity/map.php

@@ -7,10 +7,10 @@
  */
 return array(
   'names' => array(
-    'core.pkg.css' => '4e7e9bde',
-    'core.pkg.js' => '1bcca0f3',
+    'core.pkg.css' => '8b87d014',
+    'core.pkg.js' => '13c7e56a',
     'darkconsole.pkg.js' => 'e7393ebb',
-    'differential.pkg.css' => '3e81ae60',
+    'differential.pkg.css' => '3fb7f532',
     'differential.pkg.js' => '634399e9',
     'diffusion.pkg.css' => '91c5d3a6',
     'diffusion.pkg.js' => '84c8f8fd',
@@ -25,7 +25,7 @@ return array(
     'rsrc/css/aphront/notification.css' => '3f6c89c9',
     'rsrc/css/aphront/panel-view.css' => '8427b78d',
     'rsrc/css/aphront/phabricator-nav-view.css' => 'ac79a758',
-    'rsrc/css/aphront/table-view.css' => '8df59783',
+    'rsrc/css/aphront/table-view.css' => '832656fd',
     'rsrc/css/aphront/tokenizer.css' => '056da01b',
     'rsrc/css/aphront/tooltip.css' => '1a07aea8',
     'rsrc/css/aphront/typeahead-browse.css' => '8904346a',
@@ -57,7 +57,7 @@ return array(
     'rsrc/css/application/dashboard/dashboard.css' => 'bc6f2127',
     'rsrc/css/application/diff/inline-comment-summary.css' => '51efda3a',
     'rsrc/css/application/differential/add-comment.css' => 'c47f8c40',
-    'rsrc/css/application/differential/changeset-view.css' => '37792573',
+    'rsrc/css/application/differential/changeset-view.css' => '9ef7d354',
     'rsrc/css/application/differential/core.css' => '5b7b8ff4',
     'rsrc/css/application/differential/phui-inline-comment.css' => '5953c28e',
     'rsrc/css/application/differential/revision-comment.css' => '14b8565a',
@@ -115,10 +115,10 @@ return array(
     'rsrc/css/layout/phabricator-filetree-view.css' => 'fccf9f82',
     'rsrc/css/layout/phabricator-side-menu-view.css' => 'dd849797',
     'rsrc/css/layout/phabricator-source-code-view.css' => 'cbeef983',
-    'rsrc/css/phui/calendar/phui-calendar-day.css' => 'd1cf6f93',
-    'rsrc/css/phui/calendar/phui-calendar-list.css' => '56e6381a',
-    'rsrc/css/phui/calendar/phui-calendar-month.css' => '476be7e0',
-    'rsrc/css/phui/calendar/phui-calendar.css' => 'ccabe893',
+    'rsrc/css/phui/calendar/phui-calendar-day.css' => '572b1893',
+    'rsrc/css/phui/calendar/phui-calendar-list.css' => 'fcc9fb41',
+    'rsrc/css/phui/calendar/phui-calendar-month.css' => '8e10e92c',
+    'rsrc/css/phui/calendar/phui-calendar.css' => 'daadaf39',
     'rsrc/css/phui/phui-action-list.css' => 'c5eba19d',
     'rsrc/css/phui/phui-action-panel.css' => '91c7b835',
     'rsrc/css/phui/phui-badge.css' => '3baef8db',
@@ -126,14 +126,14 @@ return array(
     'rsrc/css/phui/phui-box.css' => '5c8387cf',
     'rsrc/css/phui/phui-button.css' => '4a5fbe3d',
     'rsrc/css/phui/phui-chart.css' => '6bf6f78e',
-    'rsrc/css/phui/phui-crumbs-view.css' => '6b813619',
+    'rsrc/css/phui/phui-crumbs-view.css' => 'b4fa5755',
     'rsrc/css/phui/phui-curtain-view.css' => '7148ae25',
     'rsrc/css/phui/phui-document-pro.css' => 'a3730b94',
     'rsrc/css/phui/phui-document-summary.css' => '9ca48bdf',
     'rsrc/css/phui/phui-document.css' => '715aedfb',
     'rsrc/css/phui/phui-feed-story.css' => 'aa49845d',
     'rsrc/css/phui/phui-fontkit.css' => '9cda225e',
-    'rsrc/css/phui/phui-form-view.css' => '6a51768e',
+    'rsrc/css/phui/phui-form-view.css' => 'fab0a10f',
     'rsrc/css/phui/phui-form.css' => 'aac1d51d',
     'rsrc/css/phui/phui-head-thing.css' => 'fd311e5f',
     'rsrc/css/phui/phui-header-view.css' => '4c7dd8f5',
@@ -156,7 +156,7 @@ return array(
     'rsrc/css/phui/phui-status.css' => 'd5263e49',
     'rsrc/css/phui/phui-tag-view.css' => '6bbd83e2',
     'rsrc/css/phui/phui-timeline-view.css' => 'bc523970',
-    'rsrc/css/phui/phui-two-column-view.css' => '9fb86c85',
+    'rsrc/css/phui/phui-two-column-view.css' => '5afdf637',
     'rsrc/css/phui/workboards/phui-workboard-color.css' => 'ac6fe6a7',
     'rsrc/css/phui/workboards/phui-workboard.css' => 'e6d89647',
     'rsrc/css/phui/workboards/phui-workcard.css' => '0c62d7c5',
@@ -362,8 +362,9 @@ return array(
     'rsrc/js/application/aphlict/behavior-aphlict-status.js' => 'ea681761',
     'rsrc/js/application/aphlict/behavior-desktop-notifications-control.js' => 'edd1ba66',
     'rsrc/js/application/auth/behavior-persona-login.js' => '9414ff18',
-    'rsrc/js/application/calendar/behavior-day-view.js' => '5c46cff2',
-    'rsrc/js/application/calendar/behavior-event-all-day.js' => '38dcf3c8',
+    'rsrc/js/application/calendar/behavior-day-view.js' => '4b3c4443',
+    'rsrc/js/application/calendar/behavior-event-all-day.js' => '937bb700',
+    'rsrc/js/application/calendar/behavior-month-view.js' => 'fe33e256',
     'rsrc/js/application/calendar/behavior-recurring-edit.js' => '5f1c4d5f',
     'rsrc/js/application/config/behavior-reorder-fields.js' => 'b6993408',
     'rsrc/js/application/conpherence/ConpherenceThreadManager.js' => '01774ab2',
@@ -439,7 +440,7 @@ return array(
     'rsrc/js/application/transactions/behavior-comment-actions.js' => '06460e71',
     'rsrc/js/application/transactions/behavior-reorder-configs.js' => 'd7a74243',
     'rsrc/js/application/transactions/behavior-reorder-fields.js' => 'b59e1e96',
-    'rsrc/js/application/transactions/behavior-show-older-transactions.js' => 'dbbf48b6',
+    'rsrc/js/application/transactions/behavior-show-older-transactions.js' => '94c65b72',
     'rsrc/js/application/transactions/behavior-transaction-comment-form.js' => 'b23b49e6',
     'rsrc/js/application/transactions/behavior-transaction-list.js' => '13c739ea',
     'rsrc/js/application/typeahead/behavior-typeahead-browse.js' => '635de1ec',
@@ -536,7 +537,7 @@ return array(
     'aphront-list-filter-view-css' => '5d6f0526',
     'aphront-multi-column-view-css' => 'fd18389d',
     'aphront-panel-view-css' => '8427b78d',
-    'aphront-table-view-css' => '8df59783',
+    'aphront-table-view-css' => '832656fd',
     'aphront-tokenizer-control-css' => '056da01b',
     'aphront-tooltip-css' => '1a07aea8',
     'aphront-typeahead-control-css' => 'd4f16145',
@@ -555,7 +556,7 @@ return array(
     'conpherence-update-css' => 'faf6be09',
     'conpherence-widget-pane-css' => '775eaaba',
     'd3' => 'a11a5ff2',
-    'differential-changeset-view-css' => '37792573',
+    'differential-changeset-view-css' => '9ef7d354',
     'differential-core-view-css' => '5b7b8ff4',
     'differential-inline-comment-editor' => '64a5550f',
     'differential-revision-add-comment-css' => 'c47f8c40',
@@ -590,6 +591,7 @@ return array(
     'javelin-behavior-audit-preview' => 'd835b03a',
     'javelin-behavior-badge-view' => '8ff5e24c',
     'javelin-behavior-bulk-job-reload' => 'edf8a145',
+    'javelin-behavior-calendar-month-view' => 'fe33e256',
     'javelin-behavior-choose-control' => '327a00d1',
     'javelin-behavior-comment-actions' => '06460e71',
     'javelin-behavior-config-reorder-fields' => 'b6993408',
@@ -603,7 +605,7 @@ return array(
     'javelin-behavior-dashboard-move-panels' => '019f36c4',
     'javelin-behavior-dashboard-query-panel-select' => '453c5375',
     'javelin-behavior-dashboard-tab-panel' => 'd4eecc63',
-    'javelin-behavior-day-view' => '5c46cff2',
+    'javelin-behavior-day-view' => '4b3c4443',
     'javelin-behavior-desktop-notifications-control' => 'edd1ba66',
     'javelin-behavior-detect-timezone' => '4c193c96',
     'javelin-behavior-device' => 'bb1dd507',
@@ -629,7 +631,7 @@ return array(
     'javelin-behavior-editengine-reorder-configs' => 'd7a74243',
     'javelin-behavior-editengine-reorder-fields' => 'b59e1e96',
     'javelin-behavior-error-log' => '6882e80a',
-    'javelin-behavior-event-all-day' => '38dcf3c8',
+    'javelin-behavior-event-all-day' => '937bb700',
     'javelin-behavior-fancy-datepicker' => '568931f3',
     'javelin-behavior-global-drag-and-drop' => 'c8e57404',
     'javelin-behavior-herald-rule-editor' => '7ebaeed3',
@@ -663,7 +665,7 @@ return array(
     'javelin-behavior-phabricator-remarkup-assist' => '116cf19b',
     'javelin-behavior-phabricator-reveal-content' => '60821bc7',
     'javelin-behavior-phabricator-search-typeahead' => '06c32383',
-    'javelin-behavior-phabricator-show-older-transactions' => 'dbbf48b6',
+    'javelin-behavior-phabricator-show-older-transactions' => '94c65b72',
     'javelin-behavior-phabricator-tooltips' => '42fcb747',
     'javelin-behavior-phabricator-transaction-comment-form' => 'b23b49e6',
     'javelin-behavior-phabricator-transaction-list' => '13c739ea',
@@ -825,12 +827,12 @@ return array(
     'phui-big-info-view-css' => 'bd903741',
     'phui-box-css' => '5c8387cf',
     'phui-button-css' => '4a5fbe3d',
-    'phui-calendar-css' => 'ccabe893',
-    'phui-calendar-day-css' => 'd1cf6f93',
-    'phui-calendar-list-css' => '56e6381a',
-    'phui-calendar-month-css' => '476be7e0',
+    'phui-calendar-css' => 'daadaf39',
+    'phui-calendar-day-css' => '572b1893',
+    'phui-calendar-list-css' => 'fcc9fb41',
+    'phui-calendar-month-css' => '8e10e92c',
     'phui-chart-css' => '6bf6f78e',
-    'phui-crumbs-view-css' => '6b813619',
+    'phui-crumbs-view-css' => 'b4fa5755',
     'phui-curtain-view-css' => '7148ae25',
     'phui-document-summary-view-css' => '9ca48bdf',
     'phui-document-view-css' => '715aedfb',
@@ -839,7 +841,7 @@ return array(
     'phui-font-icon-base-css' => '6449bce8',
     'phui-fontkit-css' => '9cda225e',
     'phui-form-css' => 'aac1d51d',
-    'phui-form-view-css' => '6a51768e',
+    'phui-form-view-css' => 'fab0a10f',
     'phui-head-thing-view-css' => 'fd311e5f',
     'phui-header-view-css' => '4c7dd8f5',
     'phui-hovercard' => '1bd28176',
@@ -864,7 +866,7 @@ return array(
     'phui-tag-view-css' => '6bbd83e2',
     'phui-theme-css' => '027ba77e',
     'phui-timeline-view-css' => 'bc523970',
-    'phui-two-column-view-css' => '9fb86c85',
+    'phui-two-column-view-css' => '5afdf637',
     'phui-workboard-color-css' => 'ac6fe6a7',
     'phui-workboard-view-css' => 'e6d89647',
     'phui-workcard-view-css' => '0c62d7c5',
@@ -1143,9 +1145,6 @@ return array(
       'javelin-dom',
       'javelin-workflow',
     ),
-    37792573 => array(
-      'phui-inline-comment-view-css',
-    ),
     '3ab51e2c' => array(
       'javelin-behavior',
       'javelin-behavior-device',
@@ -1236,6 +1235,9 @@ return array(
       'javelin-dom',
       'javelin-vector',
     ),
+    '4b3c4443' => array(
+      'phuix-icon-view',
+    ),
     '4b700e9e' => array(
       'javelin-behavior',
       'javelin-dom',
@@ -1655,6 +1657,12 @@ return array(
       'javelin-resource',
       'javelin-routable',
     ),
+    '94c65b72' => array(
+      'javelin-behavior',
+      'javelin-stratcom',
+      'javelin-dom',
+      'phabricator-busy',
+    ),
     '988040b4' => array(
       'javelin-install',
       'javelin-dom',
@@ -1672,6 +1680,9 @@ return array(
       'phabricator-phtize',
       'changeset-view-manager',
     ),
+    '9ef7d354' => array(
+      'phui-inline-comment-view-css',
+    ),
     '9f36c42d' => array(
       'javelin-behavior',
       'javelin-stratcom',
@@ -2014,12 +2025,6 @@ return array(
       'javelin-util',
       'phabricator-shaped-request',
     ),
-    'dbbf48b6' => array(
-      'javelin-behavior',
-      'javelin-stratcom',
-      'javelin-dom',
-      'phabricator-busy',
-    ),
     'de2e896f' => array(
       'javelin-behavior',
       'javelin-dom',

resources/sql/autopatches/20150506.calendarunnamedevents.1.php

@@ -17,7 +17,7 @@ foreach ($iterator as $event) {
     // later patch. See T8209.
     $user = id(new PhabricatorPeopleQuery())
       ->setViewer($viewer)
-      ->withPHIDs(array($event->getUserPHID()))
+      ->withPHIDs(array($event->getHostPHID()))
       ->executeOne();
 
     if ($user) {

resources/sql/autopatches/20160707.calendar.01.stub.sql

@@ -0,0 +1,2 @@
+ALTER TABLE {$NAMESPACE}_calendar.calendar_event
+  ADD isStub BOOL NOT NULL;

resources/sql/autopatches/20160711.files.01.builtin.sql

@@ -0,0 +1,2 @@
+ALTER TABLE {$NAMESPACE}_file.file
+  ADD builtinKey VARCHAR(64) COLLATE {$COLLATE_TEXT};

resources/sql/autopatches/20160711.files.02.builtinkey.sql

@@ -0,0 +1,2 @@
+ALTER TABLE {$NAMESPACE}_file.file
+  ADD UNIQUE KEY `key_builtin` (builtinKey);

resources/sql/autopatches/20160713.event.01.host.sql

@@ -0,0 +1,2 @@
+ALTER TABLE {$NAMESPACE}_calendar.calendar_event
+  CHANGE userPHID hostPHID VARBINARY(64) NOT NULL;

resources/sql/autopatches/20160715.event.01.alldayfrom.sql

@@ -0,0 +1,2 @@
+ALTER TABLE {$NAMESPACE}_calendar.calendar_event
+  ADD allDayDateFrom INT UNSIGNED NOT NULL;

resources/sql/autopatches/20160715.event.02.alldayto.sql

@@ -0,0 +1,2 @@
+ALTER TABLE {$NAMESPACE}_calendar.calendar_event
+  ADD allDayDateTo INT UNSIGNED NOT NULL;

resources/sql/autopatches/20160715.event.03.allday.php

@@ -0,0 +1,52 @@
+<?php
+
+$table = new PhabricatorCalendarEvent();
+$conn = $table->establishConnection('w');
+
+// Previously, "All Day" events were stored with a start and end date set to
+// the earliest possible start and end seconds for the corresponding days. We
+// now store all day events with their "date" epochs as UTC, separate from
+// individual event times.
+$zone_min = new DateTimeZone('Pacific/Midway');
+$zone_max = new DateTimeZone('Pacific/Kiritimati');
+$zone_utc = new DateTimeZone('UTC');
+
+foreach (new LiskMigrationIterator($table) as $event) {
+  // If this event has already migrated, skip it.
+  if ($event->getAllDayDateFrom()) {
+    continue;
+  }
+
+  $is_all_day = $event->getIsAllDay();
+
+  $epoch_min = $event->getDateFrom();
+  $epoch_max = $event->getDateTo();
+
+  $date_min = new DateTime('@'.$epoch_min);
+  $date_max = new DateTime('@'.$epoch_max);
+
+  if ($is_all_day) {
+    $date_min->setTimeZone($zone_min);
+    $date_min->modify('+2 days');
+    $date_max->setTimeZone($zone_max);
+    $date_max->modify('-2 days');
+  } else {
+    $date_min->setTimeZone($zone_utc);
+    $date_max->setTimeZone($zone_utc);
+  }
+
+  $string_min = $date_min->format('Y-m-d');
+  $string_max = $date_max->format('Y-m-d 23:59:00');
+
+  $allday_min = id(new DateTime($string_min, $zone_utc))->format('U');
+  $allday_max = id(new DateTime($string_max, $zone_utc))->format('U');
+
+  queryfx(
+    $conn,
+    'UPDATE %T SET allDayDateFrom = %d, allDayDateTo = %d
+      WHERE id = %d',
+    $table->getTableName(),
+    $allday_min,
+    $allday_max,
+    $event->getID());
+}

resources/sql/autopatches/20160720.calendar.invitetxn.php

@@ -0,0 +1,37 @@
+<?php
+
+$table = new PhabricatorCalendarEventTransaction();
+$conn_w = $table->establishConnection('w');
+
+echo pht(
+  "Restructuring calendar invite transactions...\n");
+
+foreach (new LiskMigrationIterator($table) as $txn) {
+  $type = PhabricatorCalendarEventInviteTransaction::TRANSACTIONTYPE;
+  if ($txn->getTransactionType() != $type) {
+    continue;
+  }
+
+  $old_value = array_keys($txn->getOldValue());
+
+  $orig_new = $txn->getNewValue();
+  $status_uninvited = 'uninvited';
+  foreach ($orig_new as $key => $status) {
+    if ($status == $status_uninvited) {
+      unset($orig_new[$key]);
+    }
+  }
+  $new_value = array_keys($orig_new);
+
+  queryfx(
+    $conn_w,
+    'UPDATE %T SET '.
+      'oldValue = %s, newValue = %s'.
+    'WHERE id = %d',
+    $table->getTableName(),
+    phutil_json_encode($old_value),
+    phutil_json_encode($new_value),
+    $txn->getID());
+}
+
+echo pht('Done.')."\n";

resources/sql/autopatches/20160721.pack.01.pub.sql

@@ -0,0 +1,11 @@
+CREATE TABLE {$NAMESPACE}_packages.packages_publisher (
+  id INT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY,
+  phid VARBINARY(64) NOT NULL,
+  name VARCHAR(64) NOT NULL COLLATE {$COLLATE_TEXT},
+  publisherKey VARCHAR(64) NOT NULL COLLATE {$COLLATE_SORT},
+  editPolicy VARBINARY(64) NOT NULL,
+  dateCreated INT UNSIGNED NOT NULL,
+  dateModified INT UNSIGNED NOT NULL,
+  UNIQUE KEY `key_phid` (phid),
+  UNIQUE KEY `key_publisher` (publisherKey)
+) ENGINE=InnoDB, COLLATE {$COLLATE_TEXT};

resources/sql/autopatches/20160721.pack.02.pubxaction.sql

@@ -0,0 +1,19 @@
+CREATE TABLE {$NAMESPACE}_packages.packages_publishertransaction (
+  id INT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY,
+  phid VARBINARY(64) NOT NULL,
+  authorPHID VARBINARY(64) NOT NULL,
+  objectPHID VARBINARY(64) NOT NULL,
+  viewPolicy VARBINARY(64) NOT NULL,
+  editPolicy VARBINARY(64) NOT NULL,
+  commentPHID VARBINARY(64) DEFAULT NULL,
+  commentVersion INT UNSIGNED NOT NULL,
+  transactionType VARCHAR(32) COLLATE {$COLLATE_TEXT} NOT NULL,
+  oldValue LONGTEXT COLLATE {$COLLATE_TEXT} NOT NULL,
+  newValue LONGTEXT COLLATE {$COLLATE_TEXT} NOT NULL,
+  contentSource LONGTEXT COLLATE {$COLLATE_TEXT} NOT NULL,
+  metadata LONGTEXT COLLATE {$COLLATE_TEXT} NOT NULL,
+  dateCreated INT UNSIGNED NOT NULL,
+  dateModified INT UNSIGNED NOT NULL,
+  UNIQUE KEY `key_phid` (`phid`),
+  KEY `key_object` (`objectPHID`)
+) ENGINE=InnoDB, COLLATE {$COLLATE_TEXT};

resources/sql/autopatches/20160721.pack.03.edge.sql

@@ -0,0 +1,16 @@
+CREATE TABLE {$NAMESPACE}_packages.edge (
+  src VARBINARY(64) NOT NULL,
+  type INT UNSIGNED NOT NULL,
+  dst VARBINARY(64) NOT NULL,
+  dateCreated INT UNSIGNED NOT NULL,
+  seq INT UNSIGNED NOT NULL,
+  dataID INT UNSIGNED,
+  PRIMARY KEY (src, type, dst),
+  KEY `src` (src, type, dateCreated, seq),
+  UNIQUE KEY `key_dst` (dst, type, src)
+) ENGINE=InnoDB, COLLATE {$COLLATE_TEXT};
+
+CREATE TABLE {$NAMESPACE}_packages.edgedata (
+  id INT UNSIGNED NOT NULL PRIMARY KEY AUTO_INCREMENT,
+  data LONGTEXT NOT NULL COLLATE {$COLLATE_TEXT}
+) ENGINE=InnoDB, COLLATE {$COLLATE_TEXT};

resources/sql/autopatches/20160721.pack.04.pkg.sql

@@ -0,0 +1,13 @@
+CREATE TABLE {$NAMESPACE}_packages.packages_package (
+  id INT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY,
+  phid VARBINARY(64) NOT NULL,
+  name VARCHAR(64) NOT NULL COLLATE {$COLLATE_TEXT},
+  publisherPHID VARBINARY(64) NOT NULL,
+  packageKey VARCHAR(64) NOT NULL COLLATE {$COLLATE_SORT},
+  viewPolicy VARBINARY(64) NOT NULL,
+  editPolicy VARBINARY(64) NOT NULL,
+  dateCreated INT UNSIGNED NOT NULL,
+  dateModified INT UNSIGNED NOT NULL,
+  UNIQUE KEY `key_phid` (phid),
+  UNIQUE KEY `key_package` (publisherPHID, packageKey)
+) ENGINE=InnoDB, COLLATE {$COLLATE_TEXT};

resources/sql/autopatches/20160721.pack.05.pkgxaction.sql

@@ -0,0 +1,19 @@
+CREATE TABLE {$NAMESPACE}_packages.packages_packagetransaction (
+  id INT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY,
+  phid VARBINARY(64) NOT NULL,
+  authorPHID VARBINARY(64) NOT NULL,
+  objectPHID VARBINARY(64) NOT NULL,
+  viewPolicy VARBINARY(64) NOT NULL,
+  editPolicy VARBINARY(64) NOT NULL,
+  commentPHID VARBINARY(64) DEFAULT NULL,
+  commentVersion INT UNSIGNED NOT NULL,
+  transactionType VARCHAR(32) COLLATE {$COLLATE_TEXT} NOT NULL,
+  oldValue LONGTEXT COLLATE {$COLLATE_TEXT} NOT NULL,
+  newValue LONGTEXT COLLATE {$COLLATE_TEXT} NOT NULL,
+  contentSource LONGTEXT COLLATE {$COLLATE_TEXT} NOT NULL,
+  metadata LONGTEXT COLLATE {$COLLATE_TEXT} NOT NULL,
+  dateCreated INT UNSIGNED NOT NULL,
+  dateModified INT UNSIGNED NOT NULL,
+  UNIQUE KEY `key_phid` (`phid`),
+  KEY `key_object` (`objectPHID`)
+) ENGINE=InnoDB, COLLATE {$COLLATE_TEXT};

resources/sql/autopatches/20160721.pack.06.version.sql

@@ -0,0 +1,10 @@
+CREATE TABLE {$NAMESPACE}_packages.packages_version (
+  id INT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY,
+  phid VARBINARY(64) NOT NULL,
+  name VARCHAR(64) NOT NULL COLLATE {$COLLATE_SORT},
+  packagePHID VARBINARY(64) NOT NULL,
+  dateCreated INT UNSIGNED NOT NULL,
+  dateModified INT UNSIGNED NOT NULL,
+  UNIQUE KEY `key_phid` (phid),
+  UNIQUE KEY `key_package` (packagePHID, name)
+) ENGINE=InnoDB, COLLATE {$COLLATE_TEXT};

resources/sql/autopatches/20160721.pack.07.versionxaction.sql

@@ -0,0 +1,19 @@
+CREATE TABLE {$NAMESPACE}_packages.packages_versiontransaction (
+  id INT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY,
+  phid VARBINARY(64) NOT NULL,
+  authorPHID VARBINARY(64) NOT NULL,
+  objectPHID VARBINARY(64) NOT NULL,
+  viewPolicy VARBINARY(64) NOT NULL,
+  editPolicy VARBINARY(64) NOT NULL,
+  commentPHID VARBINARY(64) DEFAULT NULL,
+  commentVersion INT UNSIGNED NOT NULL,
+  transactionType VARCHAR(32) COLLATE {$COLLATE_TEXT} NOT NULL,
+  oldValue LONGTEXT COLLATE {$COLLATE_TEXT} NOT NULL,
+  newValue LONGTEXT COLLATE {$COLLATE_TEXT} NOT NULL,
+  contentSource LONGTEXT COLLATE {$COLLATE_TEXT} NOT NULL,
+  metadata LONGTEXT COLLATE {$COLLATE_TEXT} NOT NULL,
+  dateCreated INT UNSIGNED NOT NULL,
+  dateModified INT UNSIGNED NOT NULL,
+  UNIQUE KEY `key_phid` (`phid`),
+  KEY `key_object` (`objectPHID`)
+) ENGINE=InnoDB, COLLATE {$COLLATE_TEXT};

resources/sql/autopatches/20160722.pack.01.pubngrams.sql

@@ -0,0 +1,7 @@
+CREATE TABLE {$NAMESPACE}_packages.packages_publishername_ngrams (
+  id INT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY,
+  objectID INT UNSIGNED NOT NULL,
+  ngram CHAR(3) NOT NULL COLLATE {$COLLATE_TEXT},
+  KEY `key_object` (objectID),
+  KEY `key_ngram` (ngram, objectID)
+) ENGINE=InnoDB, COLLATE {$COLLATE_TEXT};

resources/sql/autopatches/20160722.pack.02.pkgngrams.sql

@@ -0,0 +1,7 @@
+CREATE TABLE {$NAMESPACE}_packages.packages_packagename_ngrams (
+  id INT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY,
+  objectID INT UNSIGNED NOT NULL,
+  ngram CHAR(3) NOT NULL COLLATE {$COLLATE_TEXT},
+  KEY `key_object` (objectID),
+  KEY `key_ngram` (ngram, objectID)
+) ENGINE=InnoDB, COLLATE {$COLLATE_TEXT};

resources/sql/autopatches/20160722.pack.03.versionngrams.sql

@@ -0,0 +1,7 @@
+CREATE TABLE {$NAMESPACE}_packages.packages_versionname_ngrams (
+  id INT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY,
+  objectID INT UNSIGNED NOT NULL,
+  ngram CHAR(3) NOT NULL COLLATE {$COLLATE_TEXT},
+  KEY `key_object` (objectID),
+  KEY `key_ngram` (ngram, objectID)
+) ENGINE=InnoDB, COLLATE {$COLLATE_TEXT};

src/__phutil_library_map__.php

@@ -1626,8 +1626,7 @@ phutil_register_library_map(array(
     'PHUIFormIconSetControl' => 'view/form/control/PHUIFormIconSetControl.php',
     'PHUIFormInsetView' => 'view/form/PHUIFormInsetView.php',
     'PHUIFormLayoutView' => 'view/form/PHUIFormLayoutView.php',
-    'PHUIFormMultiSubmitControl' => 'view/form/control/PHUIFormMultiSubmitControl.php',
-    'PHUIFormPageView' => 'view/form/PHUIFormPageView.php',
+    'PHUIFormNumberControl' => 'view/form/control/PHUIFormNumberControl.php',
     'PHUIHandleListView' => 'applications/phid/view/PHUIHandleListView.php',
     'PHUIHandleTagListView' => 'applications/phid/view/PHUIHandleTagListView.php',
     'PHUIHandleView' => 'applications/phid/view/PHUIHandleView.php',
@@ -1653,7 +1652,6 @@ phutil_register_library_map(array(
     'PHUIObjectItemListExample' => 'applications/uiexample/examples/PHUIObjectItemListExample.php',
     'PHUIObjectItemListView' => 'view/phui/PHUIObjectItemListView.php',
     'PHUIObjectItemView' => 'view/phui/PHUIObjectItemView.php',
-    'PHUIPagedFormView' => 'view/form/PHUIPagedFormView.php',
     'PHUIPagerView' => 'view/phui/PHUIPagerView.php',
     'PHUIPinboardItemView' => 'view/phui/PHUIPinboardItemView.php',
     'PHUIPinboardView' => 'view/phui/PHUIPinboardView.php',
@@ -2020,25 +2018,48 @@ phutil_register_library_map(array(
     'PhabricatorCalendarController' => 'applications/calendar/controller/PhabricatorCalendarController.php',
     'PhabricatorCalendarDAO' => 'applications/calendar/storage/PhabricatorCalendarDAO.php',
     'PhabricatorCalendarEvent' => 'applications/calendar/storage/PhabricatorCalendarEvent.php',
+    'PhabricatorCalendarEventAcceptTransaction' => 'applications/calendar/xaction/PhabricatorCalendarEventAcceptTransaction.php',
+    'PhabricatorCalendarEventAllDayTransaction' => 'applications/calendar/xaction/PhabricatorCalendarEventAllDayTransaction.php',
     'PhabricatorCalendarEventCancelController' => 'applications/calendar/controller/PhabricatorCalendarEventCancelController.php',
-    'PhabricatorCalendarEventCommentController' => 'applications/calendar/controller/PhabricatorCalendarEventCommentController.php',
+    'PhabricatorCalendarEventCancelTransaction' => 'applications/calendar/xaction/PhabricatorCalendarEventCancelTransaction.php',
+    'PhabricatorCalendarEventDateTransaction' => 'applications/calendar/xaction/PhabricatorCalendarEventDateTransaction.php',
+    'PhabricatorCalendarEventDeclineTransaction' => 'applications/calendar/xaction/PhabricatorCalendarEventDeclineTransaction.php',
+    'PhabricatorCalendarEventDefaultEditCapability' => 'applications/calendar/capability/PhabricatorCalendarEventDefaultEditCapability.php',
+    'PhabricatorCalendarEventDefaultViewCapability' => 'applications/calendar/capability/PhabricatorCalendarEventDefaultViewCapability.php',
+    'PhabricatorCalendarEventDescriptionTransaction' => 'applications/calendar/xaction/PhabricatorCalendarEventDescriptionTransaction.php',
     'PhabricatorCalendarEventDragController' => 'applications/calendar/controller/PhabricatorCalendarEventDragController.php',
+    'PhabricatorCalendarEventEditConduitAPIMethod' => 'applications/calendar/conduit/PhabricatorCalendarEventEditConduitAPIMethod.php',
     'PhabricatorCalendarEventEditController' => 'applications/calendar/controller/PhabricatorCalendarEventEditController.php',
+    'PhabricatorCalendarEventEditEngine' => 'applications/calendar/editor/PhabricatorCalendarEventEditEngine.php',
     'PhabricatorCalendarEventEditor' => 'applications/calendar/editor/PhabricatorCalendarEventEditor.php',
     'PhabricatorCalendarEventEmailCommand' => 'applications/calendar/command/PhabricatorCalendarEventEmailCommand.php',
+    'PhabricatorCalendarEventEndDateTransaction' => 'applications/calendar/xaction/PhabricatorCalendarEventEndDateTransaction.php',
+    'PhabricatorCalendarEventFrequencyTransaction' => 'applications/calendar/xaction/PhabricatorCalendarEventFrequencyTransaction.php',
     'PhabricatorCalendarEventFulltextEngine' => 'applications/calendar/search/PhabricatorCalendarEventFulltextEngine.php',
+    'PhabricatorCalendarEventHostPolicyRule' => 'applications/calendar/policyrule/PhabricatorCalendarEventHostPolicyRule.php',
+    'PhabricatorCalendarEventHostTransaction' => 'applications/calendar/xaction/PhabricatorCalendarEventHostTransaction.php',
+    'PhabricatorCalendarEventIconTransaction' => 'applications/calendar/xaction/PhabricatorCalendarEventIconTransaction.php',
+    'PhabricatorCalendarEventInviteTransaction' => 'applications/calendar/xaction/PhabricatorCalendarEventInviteTransaction.php',
     'PhabricatorCalendarEventInvitee' => 'applications/calendar/storage/PhabricatorCalendarEventInvitee.php',
     'PhabricatorCalendarEventInviteeQuery' => 'applications/calendar/query/PhabricatorCalendarEventInviteeQuery.php',
+    'PhabricatorCalendarEventInviteesPolicyRule' => 'applications/calendar/policyrule/PhabricatorCalendarEventInviteesPolicyRule.php',
     'PhabricatorCalendarEventJoinController' => 'applications/calendar/controller/PhabricatorCalendarEventJoinController.php',
     'PhabricatorCalendarEventListController' => 'applications/calendar/controller/PhabricatorCalendarEventListController.php',
     'PhabricatorCalendarEventMailReceiver' => 'applications/calendar/mail/PhabricatorCalendarEventMailReceiver.php',
+    'PhabricatorCalendarEventNameTransaction' => 'applications/calendar/xaction/PhabricatorCalendarEventNameTransaction.php',
     'PhabricatorCalendarEventPHIDType' => 'applications/calendar/phid/PhabricatorCalendarEventPHIDType.php',
     'PhabricatorCalendarEventQuery' => 'applications/calendar/query/PhabricatorCalendarEventQuery.php',
     'PhabricatorCalendarEventRSVPEmailCommand' => 'applications/calendar/command/PhabricatorCalendarEventRSVPEmailCommand.php',
+    'PhabricatorCalendarEventRecurringTransaction' => 'applications/calendar/xaction/PhabricatorCalendarEventRecurringTransaction.php',
+    'PhabricatorCalendarEventReplyTransaction' => 'applications/calendar/xaction/PhabricatorCalendarEventReplyTransaction.php',
+    'PhabricatorCalendarEventSearchConduitAPIMethod' => 'applications/calendar/conduit/PhabricatorCalendarEventSearchConduitAPIMethod.php',
     'PhabricatorCalendarEventSearchEngine' => 'applications/calendar/query/PhabricatorCalendarEventSearchEngine.php',
+    'PhabricatorCalendarEventStartDateTransaction' => 'applications/calendar/xaction/PhabricatorCalendarEventStartDateTransaction.php',
     'PhabricatorCalendarEventTransaction' => 'applications/calendar/storage/PhabricatorCalendarEventTransaction.php',
     'PhabricatorCalendarEventTransactionComment' => 'applications/calendar/storage/PhabricatorCalendarEventTransactionComment.php',
     'PhabricatorCalendarEventTransactionQuery' => 'applications/calendar/query/PhabricatorCalendarEventTransactionQuery.php',
+    'PhabricatorCalendarEventTransactionType' => 'applications/calendar/xaction/PhabricatorCalendarEventTransactionType.php',
+    'PhabricatorCalendarEventUntilDateTransaction' => 'applications/calendar/xaction/PhabricatorCalendarEventUntilDateTransaction.php',
     'PhabricatorCalendarEventViewController' => 'applications/calendar/controller/PhabricatorCalendarEventViewController.php',
     'PhabricatorCalendarHoliday' => 'applications/calendar/storage/PhabricatorCalendarHoliday.php',
     'PhabricatorCalendarHolidayTestCase' => 'applications/calendar/storage/__tests__/PhabricatorCalendarHolidayTestCase.php',
@@ -2951,7 +2972,80 @@ phutil_register_library_map(array(
     'PhabricatorPHPASTApplication' => 'applications/phpast/application/PhabricatorPHPASTApplication.php',
     'PhabricatorPHPConfigSetupCheck' => 'applications/config/check/PhabricatorPHPConfigSetupCheck.php',
     'PhabricatorPHPMailerConfigOptions' => 'applications/config/option/PhabricatorPHPMailerConfigOptions.php',
-    'PhabricatorPagedFormUIExample' => 'applications/uiexample/examples/PhabricatorPagedFormUIExample.php',
+    'PhabricatorPackagesApplication' => 'applications/packages/application/PhabricatorPackagesApplication.php',
+    'PhabricatorPackagesController' => 'applications/packages/controller/PhabricatorPackagesController.php',
+    'PhabricatorPackagesCreatePublisherCapability' => 'applications/packages/capability/PhabricatorPackagesCreatePublisherCapability.php',
+    'PhabricatorPackagesDAO' => 'applications/packages/storage/PhabricatorPackagesDAO.php',
+    'PhabricatorPackagesEditEngine' => 'applications/packages/editor/PhabricatorPackagesEditEngine.php',
+    'PhabricatorPackagesEditor' => 'applications/packages/editor/PhabricatorPackagesEditor.php',
+    'PhabricatorPackagesNgrams' => 'applications/packages/storage/PhabricatorPackagesNgrams.php',
+    'PhabricatorPackagesPackage' => 'applications/packages/storage/PhabricatorPackagesPackage.php',
+    'PhabricatorPackagesPackageController' => 'applications/packages/controller/PhabricatorPackagesPackageController.php',
+    'PhabricatorPackagesPackageDatasource' => 'applications/packages/typeahead/PhabricatorPackagesPackageDatasource.php',
+    'PhabricatorPackagesPackageDefaultEditCapability' => 'applications/packages/capability/PhabricatorPackagesPackageDefaultEditCapability.php',
+    'PhabricatorPackagesPackageDefaultViewCapability' => 'applications/packages/capability/PhabricatorPackagesPackageDefaultViewCapability.php',
+    'PhabricatorPackagesPackageEditConduitAPIMethod' => 'applications/packages/conduit/PhabricatorPackagesPackageEditConduitAPIMethod.php',
+    'PhabricatorPackagesPackageEditController' => 'applications/packages/controller/PhabricatorPackagesPackageEditController.php',
+    'PhabricatorPackagesPackageEditEngine' => 'applications/packages/editor/PhabricatorPackagesPackageEditEngine.php',
+    'PhabricatorPackagesPackageEditor' => 'applications/packages/editor/PhabricatorPackagesPackageEditor.php',
+    'PhabricatorPackagesPackageKeyTransaction' => 'applications/packages/xaction/package/PhabricatorPackagesPackageKeyTransaction.php',
+    'PhabricatorPackagesPackageListController' => 'applications/packages/controller/PhabricatorPackagesPackageListController.php',
+    'PhabricatorPackagesPackageListView' => 'applications/packages/view/PhabricatorPackagesPackageListView.php',
+    'PhabricatorPackagesPackageNameNgrams' => 'applications/packages/storage/PhabricatorPackagesPackageNameNgrams.php',
+    'PhabricatorPackagesPackageNameTransaction' => 'applications/packages/xaction/package/PhabricatorPackagesPackageNameTransaction.php',
+    'PhabricatorPackagesPackagePHIDType' => 'applications/packages/phid/PhabricatorPackagesPackagePHIDType.php',
+    'PhabricatorPackagesPackagePublisherTransaction' => 'applications/packages/xaction/package/PhabricatorPackagesPackagePublisherTransaction.php',
+    'PhabricatorPackagesPackageQuery' => 'applications/packages/query/PhabricatorPackagesPackageQuery.php',
+    'PhabricatorPackagesPackageSearchConduitAPIMethod' => 'applications/packages/conduit/PhabricatorPackagesPackageSearchConduitAPIMethod.php',
+    'PhabricatorPackagesPackageSearchEngine' => 'applications/packages/query/PhabricatorPackagesPackageSearchEngine.php',
+    'PhabricatorPackagesPackageTransaction' => 'applications/packages/storage/PhabricatorPackagesPackageTransaction.php',
+    'PhabricatorPackagesPackageTransactionQuery' => 'applications/packages/query/PhabricatorPackagesPackageTransactionQuery.php',
+    'PhabricatorPackagesPackageTransactionType' => 'applications/packages/xaction/package/PhabricatorPackagesPackageTransactionType.php',
+    'PhabricatorPackagesPackageViewController' => 'applications/packages/controller/PhabricatorPackagesPackageViewController.php',
+    'PhabricatorPackagesPublisher' => 'applications/packages/storage/PhabricatorPackagesPublisher.php',
+    'PhabricatorPackagesPublisherController' => 'applications/packages/controller/PhabricatorPackagesPublisherController.php',
+    'PhabricatorPackagesPublisherDatasource' => 'applications/packages/typeahead/PhabricatorPackagesPublisherDatasource.php',
+    'PhabricatorPackagesPublisherDefaultEditCapability' => 'applications/packages/capability/PhabricatorPackagesPublisherDefaultEditCapability.php',
+    'PhabricatorPackagesPublisherEditConduitAPIMethod' => 'applications/packages/conduit/PhabricatorPackagesPublisherEditConduitAPIMethod.php',
+    'PhabricatorPackagesPublisherEditController' => 'applications/packages/controller/PhabricatorPackagesPublisherEditController.php',
+    'PhabricatorPackagesPublisherEditEngine' => 'applications/packages/editor/PhabricatorPackagesPublisherEditEngine.php',
+    'PhabricatorPackagesPublisherEditor' => 'applications/packages/editor/PhabricatorPackagesPublisherEditor.php',
+    'PhabricatorPackagesPublisherKeyTransaction' => 'applications/packages/xaction/publisher/PhabricatorPackagesPublisherKeyTransaction.php',
+    'PhabricatorPackagesPublisherListController' => 'applications/packages/controller/PhabricatorPackagesPublisherListController.php',
+    'PhabricatorPackagesPublisherListView' => 'applications/packages/view/PhabricatorPackagesPublisherListView.php',
+    'PhabricatorPackagesPublisherNameNgrams' => 'applications/packages/storage/PhabricatorPackagesPublisherNameNgrams.php',
+    'PhabricatorPackagesPublisherNameTransaction' => 'applications/packages/xaction/publisher/PhabricatorPackagesPublisherNameTransaction.php',
+    'PhabricatorPackagesPublisherPHIDType' => 'applications/packages/phid/PhabricatorPackagesPublisherPHIDType.php',
+    'PhabricatorPackagesPublisherQuery' => 'applications/packages/query/PhabricatorPackagesPublisherQuery.php',
+    'PhabricatorPackagesPublisherSearchConduitAPIMethod' => 'applications/packages/conduit/PhabricatorPackagesPublisherSearchConduitAPIMethod.php',
+    'PhabricatorPackagesPublisherSearchEngine' => 'applications/packages/query/PhabricatorPackagesPublisherSearchEngine.php',
+    'PhabricatorPackagesPublisherTransaction' => 'applications/packages/storage/PhabricatorPackagesPublisherTransaction.php',
+    'PhabricatorPackagesPublisherTransactionQuery' => 'applications/packages/query/PhabricatorPackagesPublisherTransactionQuery.php',
+    'PhabricatorPackagesPublisherTransactionType' => 'applications/packages/xaction/publisher/PhabricatorPackagesPublisherTransactionType.php',
+    'PhabricatorPackagesPublisherViewController' => 'applications/packages/controller/PhabricatorPackagesPublisherViewController.php',
+    'PhabricatorPackagesQuery' => 'applications/packages/query/PhabricatorPackagesQuery.php',
+    'PhabricatorPackagesSchemaSpec' => 'applications/packages/storage/PhabricatorPackagesSchemaSpec.php',
+    'PhabricatorPackagesTransactionType' => 'applications/packages/xaction/PhabricatorPackagesTransactionType.php',
+    'PhabricatorPackagesVersion' => 'applications/packages/storage/PhabricatorPackagesVersion.php',
+    'PhabricatorPackagesVersionController' => 'applications/packages/controller/PhabricatorPackagesVersionController.php',
+    'PhabricatorPackagesVersionEditConduitAPIMethod' => 'applications/packages/conduit/PhabricatorPackagesVersionEditConduitAPIMethod.php',
+    'PhabricatorPackagesVersionEditController' => 'applications/packages/controller/PhabricatorPackagesVersionEditController.php',
+    'PhabricatorPackagesVersionEditEngine' => 'applications/packages/editor/PhabricatorPackagesVersionEditEngine.php',
+    'PhabricatorPackagesVersionEditor' => 'applications/packages/editor/PhabricatorPackagesVersionEditor.php',
+    'PhabricatorPackagesVersionListController' => 'applications/packages/controller/PhabricatorPackagesVersionListController.php',
+    'PhabricatorPackagesVersionListView' => 'applications/packages/view/PhabricatorPackagesVersionListView.php',
+    'PhabricatorPackagesVersionNameNgrams' => 'applications/packages/storage/PhabricatorPackagesVersionNameNgrams.php',
+    'PhabricatorPackagesVersionNameTransaction' => 'applications/packages/xaction/version/PhabricatorPackagesVersionNameTransaction.php',
+    'PhabricatorPackagesVersionPHIDType' => 'applications/packages/phid/PhabricatorPackagesVersionPHIDType.php',
+    'PhabricatorPackagesVersionPackageTransaction' => 'applications/packages/xaction/version/PhabricatorPackagesVersionPackageTransaction.php',
+    'PhabricatorPackagesVersionQuery' => 'applications/packages/query/PhabricatorPackagesVersionQuery.php',
+    'PhabricatorPackagesVersionSearchConduitAPIMethod' => 'applications/packages/conduit/PhabricatorPackagesVersionSearchConduitAPIMethod.php',
+    'PhabricatorPackagesVersionSearchEngine' => 'applications/packages/query/PhabricatorPackagesVersionSearchEngine.php',
+    'PhabricatorPackagesVersionTransaction' => 'applications/packages/storage/PhabricatorPackagesVersionTransaction.php',
+    'PhabricatorPackagesVersionTransactionQuery' => 'applications/packages/query/PhabricatorPackagesVersionTransactionQuery.php',
+    'PhabricatorPackagesVersionTransactionType' => 'applications/packages/xaction/version/PhabricatorPackagesVersionTransactionType.php',
+    'PhabricatorPackagesVersionViewController' => 'applications/packages/controller/PhabricatorPackagesVersionViewController.php',
+    'PhabricatorPackagesView' => 'applications/packages/view/PhabricatorPackagesView.php',
     'PhabricatorPagerUIExample' => 'applications/uiexample/examples/PhabricatorPagerUIExample.php',
     'PhabricatorPassphraseApplication' => 'applications/passphrase/application/PhabricatorPassphraseApplication.php',
     'PhabricatorPasswordAuthProvider' => 'applications/auth/provider/PhabricatorPasswordAuthProvider.php',
@@ -2992,7 +3086,6 @@ phutil_register_library_map(array(
     'PhabricatorPeopleAnyOwnerDatasource' => 'applications/people/typeahead/PhabricatorPeopleAnyOwnerDatasource.php',
     'PhabricatorPeopleApplication' => 'applications/people/application/PhabricatorPeopleApplication.php',
     'PhabricatorPeopleApproveController' => 'applications/people/controller/PhabricatorPeopleApproveController.php',
-    'PhabricatorPeopleCalendarController' => 'applications/people/controller/PhabricatorPeopleCalendarController.php',
     'PhabricatorPeopleController' => 'applications/people/controller/PhabricatorPeopleController.php',
     'PhabricatorPeopleCreateController' => 'applications/people/controller/PhabricatorPeopleCreateController.php',
     'PhabricatorPeopleDatasource' => 'applications/people/typeahead/PhabricatorPeopleDatasource.php',
@@ -6167,8 +6260,7 @@ phutil_register_library_map(array(
     'PHUIFormIconSetControl' => 'AphrontFormControl',
     'PHUIFormInsetView' => 'AphrontView',
     'PHUIFormLayoutView' => 'AphrontView',
-    'PHUIFormMultiSubmitControl' => 'AphrontFormControl',
-    'PHUIFormPageView' => 'AphrontView',
+    'PHUIFormNumberControl' => 'AphrontFormControl',
     'PHUIHandleListView' => 'AphrontTagView',
     'PHUIHandleTagListView' => 'AphrontTagView',
     'PHUIHandleView' => 'AphrontView',
@@ -6194,7 +6286,6 @@ phutil_register_library_map(array(
     'PHUIObjectItemListExample' => 'PhabricatorUIExample',
     'PHUIObjectItemListView' => 'AphrontTagView',
     'PHUIObjectItemView' => 'AphrontTagView',
-    'PHUIPagedFormView' => 'AphrontView',
     'PHUIPagerView' => 'AphrontView',
     'PHUIPinboardItemView' => 'AphrontView',
     'PHUIPinboardView' => 'AphrontView',
@@ -6628,29 +6719,53 @@ phutil_register_library_map(array(
       'PhabricatorFlaggableInterface',
       'PhabricatorSpacesInterface',
       'PhabricatorFulltextInterface',
+      'PhabricatorConduitResultInterface',
     ),
+    'PhabricatorCalendarEventAcceptTransaction' => 'PhabricatorCalendarEventReplyTransaction',
+    'PhabricatorCalendarEventAllDayTransaction' => 'PhabricatorCalendarEventTransactionType',
     'PhabricatorCalendarEventCancelController' => 'PhabricatorCalendarController',
-    'PhabricatorCalendarEventCommentController' => 'PhabricatorCalendarController',
+    'PhabricatorCalendarEventCancelTransaction' => 'PhabricatorCalendarEventTransactionType',
+    'PhabricatorCalendarEventDateTransaction' => 'PhabricatorCalendarEventTransactionType',
+    'PhabricatorCalendarEventDeclineTransaction' => 'PhabricatorCalendarEventReplyTransaction',
+    'PhabricatorCalendarEventDefaultEditCapability' => 'PhabricatorPolicyCapability',
+    'PhabricatorCalendarEventDefaultViewCapability' => 'PhabricatorPolicyCapability',
+    'PhabricatorCalendarEventDescriptionTransaction' => 'PhabricatorCalendarEventTransactionType',
     'PhabricatorCalendarEventDragController' => 'PhabricatorCalendarController',
+    'PhabricatorCalendarEventEditConduitAPIMethod' => 'PhabricatorEditEngineAPIMethod',
     'PhabricatorCalendarEventEditController' => 'PhabricatorCalendarController',
+    'PhabricatorCalendarEventEditEngine' => 'PhabricatorEditEngine',
     'PhabricatorCalendarEventEditor' => 'PhabricatorApplicationTransactionEditor',
     'PhabricatorCalendarEventEmailCommand' => 'MetaMTAEmailTransactionCommand',
+    'PhabricatorCalendarEventEndDateTransaction' => 'PhabricatorCalendarEventDateTransaction',
+    'PhabricatorCalendarEventFrequencyTransaction' => 'PhabricatorCalendarEventTransactionType',
     'PhabricatorCalendarEventFulltextEngine' => 'PhabricatorFulltextEngine',
+    'PhabricatorCalendarEventHostPolicyRule' => 'PhabricatorPolicyRule',
+    'PhabricatorCalendarEventHostTransaction' => 'PhabricatorCalendarEventTransactionType',
+    'PhabricatorCalendarEventIconTransaction' => 'PhabricatorCalendarEventTransactionType',
+    'PhabricatorCalendarEventInviteTransaction' => 'PhabricatorCalendarEventTransactionType',
     'PhabricatorCalendarEventInvitee' => array(
       'PhabricatorCalendarDAO',
       'PhabricatorPolicyInterface',
     ),
     'PhabricatorCalendarEventInviteeQuery' => 'PhabricatorCursorPagedPolicyAwareQuery',
+    'PhabricatorCalendarEventInviteesPolicyRule' => 'PhabricatorPolicyRule',
     'PhabricatorCalendarEventJoinController' => 'PhabricatorCalendarController',
     'PhabricatorCalendarEventListController' => 'PhabricatorCalendarController',
     'PhabricatorCalendarEventMailReceiver' => 'PhabricatorObjectMailReceiver',
+    'PhabricatorCalendarEventNameTransaction' => 'PhabricatorCalendarEventTransactionType',
     'PhabricatorCalendarEventPHIDType' => 'PhabricatorPHIDType',
     'PhabricatorCalendarEventQuery' => 'PhabricatorCursorPagedPolicyAwareQuery',
     'PhabricatorCalendarEventRSVPEmailCommand' => 'PhabricatorCalendarEventEmailCommand',
+    'PhabricatorCalendarEventRecurringTransaction' => 'PhabricatorCalendarEventTransactionType',
+    'PhabricatorCalendarEventReplyTransaction' => 'PhabricatorCalendarEventTransactionType',
+    'PhabricatorCalendarEventSearchConduitAPIMethod' => 'PhabricatorSearchEngineAPIMethod',
     'PhabricatorCalendarEventSearchEngine' => 'PhabricatorApplicationSearchEngine',
-    'PhabricatorCalendarEventTransaction' => 'PhabricatorApplicationTransaction',
+    'PhabricatorCalendarEventStartDateTransaction' => 'PhabricatorCalendarEventDateTransaction',
+    'PhabricatorCalendarEventTransaction' => 'PhabricatorModularTransaction',
     'PhabricatorCalendarEventTransactionComment' => 'PhabricatorApplicationTransactionComment',
     'PhabricatorCalendarEventTransactionQuery' => 'PhabricatorApplicationTransactionQuery',
+    'PhabricatorCalendarEventTransactionType' => 'PhabricatorModularTransactionType',
+    'PhabricatorCalendarEventUntilDateTransaction' => 'PhabricatorCalendarEventDateTransaction',
     'PhabricatorCalendarEventViewController' => 'PhabricatorCalendarController',
     'PhabricatorCalendarHoliday' => 'PhabricatorCalendarDAO',
     'PhabricatorCalendarHolidayTestCase' => 'PhabricatorTestCase',
@@ -7684,7 +7799,108 @@ phutil_register_library_map(array(
     'PhabricatorPHPASTApplication' => 'PhabricatorApplication',
     'PhabricatorPHPConfigSetupCheck' => 'PhabricatorSetupCheck',
     'PhabricatorPHPMailerConfigOptions' => 'PhabricatorApplicationConfigOptions',
-    'PhabricatorPagedFormUIExample' => 'PhabricatorUIExample',
+    'PhabricatorPackagesApplication' => 'PhabricatorApplication',
+    'PhabricatorPackagesController' => 'PhabricatorController',
+    'PhabricatorPackagesCreatePublisherCapability' => 'PhabricatorPolicyCapability',
+    'PhabricatorPackagesDAO' => 'PhabricatorLiskDAO',
+    'PhabricatorPackagesEditEngine' => 'PhabricatorEditEngine',
+    'PhabricatorPackagesEditor' => 'PhabricatorApplicationTransactionEditor',
+    'PhabricatorPackagesNgrams' => 'PhabricatorSearchNgrams',
+    'PhabricatorPackagesPackage' => array(
+      'PhabricatorPackagesDAO',
+      'PhabricatorPolicyInterface',
+      'PhabricatorApplicationTransactionInterface',
+      'PhabricatorDestructibleInterface',
+      'PhabricatorSubscribableInterface',
+      'PhabricatorProjectInterface',
+      'PhabricatorConduitResultInterface',
+      'PhabricatorNgramsInterface',
+    ),
+    'PhabricatorPackagesPackageController' => 'PhabricatorPackagesController',
+    'PhabricatorPackagesPackageDatasource' => 'PhabricatorTypeaheadDatasource',
+    'PhabricatorPackagesPackageDefaultEditCapability' => 'PhabricatorPolicyCapability',
+    'PhabricatorPackagesPackageDefaultViewCapability' => 'PhabricatorPolicyCapability',
+    'PhabricatorPackagesPackageEditConduitAPIMethod' => 'PhabricatorEditEngineAPIMethod',
+    'PhabricatorPackagesPackageEditController' => 'PhabricatorPackagesPackageController',
+    'PhabricatorPackagesPackageEditEngine' => 'PhabricatorPackagesEditEngine',
+    'PhabricatorPackagesPackageEditor' => 'PhabricatorPackagesEditor',
+    'PhabricatorPackagesPackageKeyTransaction' => 'PhabricatorPackagesPackageTransactionType',
+    'PhabricatorPackagesPackageListController' => 'PhabricatorPackagesPackageController',
+    'PhabricatorPackagesPackageListView' => 'PhabricatorPackagesView',
+    'PhabricatorPackagesPackageNameNgrams' => 'PhabricatorPackagesNgrams',
+    'PhabricatorPackagesPackageNameTransaction' => 'PhabricatorPackagesPackageTransactionType',
+    'PhabricatorPackagesPackagePHIDType' => 'PhabricatorPHIDType',
+    'PhabricatorPackagesPackagePublisherTransaction' => 'PhabricatorPackagesPackageTransactionType',
+    'PhabricatorPackagesPackageQuery' => 'PhabricatorPackagesQuery',
+    'PhabricatorPackagesPackageSearchConduitAPIMethod' => 'PhabricatorSearchEngineAPIMethod',
+    'PhabricatorPackagesPackageSearchEngine' => 'PhabricatorApplicationSearchEngine',
+    'PhabricatorPackagesPackageTransaction' => 'PhabricatorModularTransaction',
+    'PhabricatorPackagesPackageTransactionQuery' => 'PhabricatorApplicationTransactionQuery',
+    'PhabricatorPackagesPackageTransactionType' => 'PhabricatorPackagesTransactionType',
+    'PhabricatorPackagesPackageViewController' => 'PhabricatorPackagesPackageController',
+    'PhabricatorPackagesPublisher' => array(
+      'PhabricatorPackagesDAO',
+      'PhabricatorPolicyInterface',
+      'PhabricatorApplicationTransactionInterface',
+      'PhabricatorDestructibleInterface',
+      'PhabricatorSubscribableInterface',
+      'PhabricatorProjectInterface',
+      'PhabricatorConduitResultInterface',
+      'PhabricatorNgramsInterface',
+    ),
+    'PhabricatorPackagesPublisherController' => 'PhabricatorPackagesController',
+    'PhabricatorPackagesPublisherDatasource' => 'PhabricatorTypeaheadDatasource',
+    'PhabricatorPackagesPublisherDefaultEditCapability' => 'PhabricatorPolicyCapability',
+    'PhabricatorPackagesPublisherEditConduitAPIMethod' => 'PhabricatorEditEngineAPIMethod',
+    'PhabricatorPackagesPublisherEditController' => 'PhabricatorPackagesPublisherController',
+    'PhabricatorPackagesPublisherEditEngine' => 'PhabricatorPackagesEditEngine',
+    'PhabricatorPackagesPublisherEditor' => 'PhabricatorPackagesEditor',
+    'PhabricatorPackagesPublisherKeyTransaction' => 'PhabricatorPackagesPublisherTransactionType',
+    'PhabricatorPackagesPublisherListController' => 'PhabricatorPackagesPublisherController',
+    'PhabricatorPackagesPublisherListView' => 'PhabricatorPackagesView',
+    'PhabricatorPackagesPublisherNameNgrams' => 'PhabricatorPackagesNgrams',
+    'PhabricatorPackagesPublisherNameTransaction' => 'PhabricatorPackagesPublisherTransactionType',
+    'PhabricatorPackagesPublisherPHIDType' => 'PhabricatorPHIDType',
+    'PhabricatorPackagesPublisherQuery' => 'PhabricatorPackagesQuery',
+    'PhabricatorPackagesPublisherSearchConduitAPIMethod' => 'PhabricatorSearchEngineAPIMethod',
+    'PhabricatorPackagesPublisherSearchEngine' => 'PhabricatorApplicationSearchEngine',
+    'PhabricatorPackagesPublisherTransaction' => 'PhabricatorModularTransaction',
+    'PhabricatorPackagesPublisherTransactionQuery' => 'PhabricatorApplicationTransactionQuery',
+    'PhabricatorPackagesPublisherTransactionType' => 'PhabricatorPackagesTransactionType',
+    'PhabricatorPackagesPublisherViewController' => 'PhabricatorPackagesPublisherController',
+    'PhabricatorPackagesQuery' => 'PhabricatorCursorPagedPolicyAwareQuery',
+    'PhabricatorPackagesSchemaSpec' => 'PhabricatorConfigSchemaSpec',
+    'PhabricatorPackagesTransactionType' => 'PhabricatorModularTransactionType',
+    'PhabricatorPackagesVersion' => array(
+      'PhabricatorPackagesDAO',
+      'PhabricatorPolicyInterface',
+      'PhabricatorExtendedPolicyInterface',
+      'PhabricatorApplicationTransactionInterface',
+      'PhabricatorDestructibleInterface',
+      'PhabricatorSubscribableInterface',
+      'PhabricatorProjectInterface',
+      'PhabricatorConduitResultInterface',
+      'PhabricatorNgramsInterface',
+    ),
+    'PhabricatorPackagesVersionController' => 'PhabricatorPackagesController',
+    'PhabricatorPackagesVersionEditConduitAPIMethod' => 'PhabricatorEditEngineAPIMethod',
+    'PhabricatorPackagesVersionEditController' => 'PhabricatorPackagesVersionController',
+    'PhabricatorPackagesVersionEditEngine' => 'PhabricatorPackagesEditEngine',
+    'PhabricatorPackagesVersionEditor' => 'PhabricatorPackagesEditor',
+    'PhabricatorPackagesVersionListController' => 'PhabricatorPackagesVersionController',
+    'PhabricatorPackagesVersionListView' => 'PhabricatorPackagesView',
+    'PhabricatorPackagesVersionNameNgrams' => 'PhabricatorPackagesNgrams',
+    'PhabricatorPackagesVersionNameTransaction' => 'PhabricatorPackagesVersionTransactionType',
+    'PhabricatorPackagesVersionPHIDType' => 'PhabricatorPHIDType',
+    'PhabricatorPackagesVersionPackageTransaction' => 'PhabricatorPackagesVersionTransactionType',
+    'PhabricatorPackagesVersionQuery' => 'PhabricatorPackagesQuery',
+    'PhabricatorPackagesVersionSearchConduitAPIMethod' => 'PhabricatorSearchEngineAPIMethod',
+    'PhabricatorPackagesVersionSearchEngine' => 'PhabricatorApplicationSearchEngine',
+    'PhabricatorPackagesVersionTransaction' => 'PhabricatorModularTransaction',
+    'PhabricatorPackagesVersionTransactionQuery' => 'PhabricatorApplicationTransactionQuery',
+    'PhabricatorPackagesVersionTransactionType' => 'PhabricatorPackagesTransactionType',
+    'PhabricatorPackagesVersionViewController' => 'PhabricatorPackagesVersionController',
+    'PhabricatorPackagesView' => 'AphrontView',
     'PhabricatorPagerUIExample' => 'PhabricatorUIExample',
     'PhabricatorPassphraseApplication' => 'PhabricatorApplication',
     'PhabricatorPasswordAuthProvider' => 'PhabricatorAuthProvider',
@@ -7737,7 +7953,6 @@ phutil_register_library_map(array(
     'PhabricatorPeopleAnyOwnerDatasource' => 'PhabricatorTypeaheadDatasource',
     'PhabricatorPeopleApplication' => 'PhabricatorApplication',
     'PhabricatorPeopleApproveController' => 'PhabricatorPeopleController',
-    'PhabricatorPeopleCalendarController' => 'PhabricatorPeopleProfileController',
     'PhabricatorPeopleController' => 'PhabricatorController',
     'PhabricatorPeopleCreateController' => 'PhabricatorPeopleController',
     'PhabricatorPeopleDatasource' => 'PhabricatorTypeaheadDatasource',

src/aphront/httpparametertype/AphrontEpochHTTPParameterType.php

@@ -3,13 +3,30 @@
 final class AphrontEpochHTTPParameterType
   extends AphrontHTTPParameterType {
 
+  private $allowNull;
+
+  public function setAllowNull($allow_null) {
+    $this->allowNull = $allow_null;
+    return $this;
+  }
+
+  public function getAllowNull() {
+    return $this->allowNull;
+  }
+
   protected function getParameterExists(AphrontRequest $request, $key) {
     return $request->getExists($key) ||
            $request->getExists($key.'_d');
   }
 
   protected function getParameterValue(AphrontRequest $request, $key) {
-    return AphrontFormDateControlValue::newFromRequest($request, $key);
+    $value = AphrontFormDateControlValue::newFromRequest($request, $key);
+
+    if ($this->getAllowNull()) {
+      $value->setOptional(true);
+    }
+
+    return $value;
   }
 
   protected function getParameterTypeName() {

src/applications/auth/factor/PhabricatorTOTPAuthFactor.php

@@ -132,7 +132,7 @@ final class PhabricatorTOTPAuthFactor extends PhabricatorAuthFactor {
         'the authenticator correctly:'));
 
     $form->appendChild(
-      id(new AphrontFormTextControl())
+      id(new PHUIFormNumberControl())
         ->setLabel(pht('TOTP Code'))
         ->setName('totpcode')
         ->setValue($code)
@@ -151,7 +151,7 @@ final class PhabricatorTOTPAuthFactor extends PhabricatorAuthFactor {
     }
 
     $form->appendChild(
-      id(new AphrontFormTextControl())
+      id(new PHUIFormNumberControl())
         ->setName($this->getParameterName($config, 'totpcode'))
         ->setLabel(pht('App Code'))
         ->setCaption(pht('Factor Name: %s', $config->getFactorName()))

src/applications/calendar/application/PhabricatorCalendarApplication.php

@@ -40,25 +40,21 @@ final class PhabricatorCalendarApplication extends PhabricatorApplication {
 
   public function getRoutes() {
     return array(
-      '/E(?P<id>[1-9]\d*)(?:/(?P<sequence>\d+))?'
+      '/E(?P<id>[1-9]\d*)(?:/(?P<sequence>\d+)/)?'
         => 'PhabricatorCalendarEventViewController',
       '/calendar/' => array(
         '(?:query/(?P<queryKey>[^/]+)/(?:(?P<year>\d+)/'.
           '(?P<month>\d+)/)?(?:(?P<day>\d+)/)?)?'
           => 'PhabricatorCalendarEventListController',
         'event/' => array(
-          'create/'
-            => 'PhabricatorCalendarEventEditController',
-          'edit/(?P<id>[1-9]\d*)/(?:(?P<sequence>\d+)/)?'
+          $this->getEditRoutePattern('edit/')
             => 'PhabricatorCalendarEventEditController',
           'drag/(?P<id>[1-9]\d*)/'
             => 'PhabricatorCalendarEventDragController',
-          'cancel/(?P<id>[1-9]\d*)/(?:(?P<sequence>\d+)/)?'
+          'cancel/(?P<id>[1-9]\d*)/'
             => 'PhabricatorCalendarEventCancelController',
           '(?P<action>join|decline|accept)/(?P<id>[1-9]\d*)/'
             => 'PhabricatorCalendarEventJoinController',
-          'comment/(?P<id>[1-9]\d*)/(?:(?P<sequence>\d+)/)?'
-            => 'PhabricatorCalendarEventCommentController',
         ),
       ),
     );
@@ -87,4 +83,19 @@ final class PhabricatorCalendarApplication extends PhabricatorApplication {
     );
   }
 
+  protected function getCustomCapabilities() {
+    return array(
+      PhabricatorCalendarEventDefaultViewCapability::CAPABILITY => array(
+        'caption' => pht('Default view policy for newly created events.'),
+        'template' => PhabricatorCalendarEventPHIDType::TYPECONST,
+        'capability' => PhabricatorPolicyCapability::CAN_VIEW,
+      ),
+      PhabricatorCalendarEventDefaultEditCapability::CAPABILITY => array(
+        'caption' => pht('Default edit policy for newly created events.'),
+        'template' => PhabricatorCalendarEventPHIDType::TYPECONST,
+        'capability' => PhabricatorPolicyCapability::CAN_EDIT,
+      ),
+    );
+  }
+
 }

src/applications/calendar/capability/PhabricatorCalendarEventDefaultEditCapability.php

@@ -0,0 +1,12 @@
+<?php
+
+final class PhabricatorCalendarEventDefaultEditCapability
+  extends PhabricatorPolicyCapability {
+
+  const CAPABILITY = 'calendar.event.default.edit';
+
+  public function getCapabilityName() {
+    return pht('Default Edit Policy');
+  }
+
+}

src/applications/calendar/capability/PhabricatorCalendarEventDefaultViewCapability.php

@@ -0,0 +1,16 @@
+<?php
+
+final class PhabricatorCalendarEventDefaultViewCapability
+  extends PhabricatorPolicyCapability {
+
+  const CAPABILITY = 'calendar.event.default.view';
+
+  public function getCapabilityName() {
+    return pht('Default View Policy');
+  }
+
+  public function shouldAllowPublicPolicySetting() {
+    return true;
+  }
+
+}

src/applications/calendar/command/PhabricatorCalendarEventRSVPEmailCommand.php

@@ -44,32 +44,24 @@ final class PhabricatorCalendarEventRSVPEmailCommand
     PhabricatorMetaMTAReceivedMail $mail,
     $command,
     array $argv) {
-    $status_attending = PhabricatorCalendarEventInvitee::STATUS_ATTENDING;
-    $status_declined = PhabricatorCalendarEventInvitee::STATUS_DECLINED;
-    $xactions = array();
 
     $target = phutil_utf8_strtolower(implode(' ', $argv));
-    $rsvp = null;
 
     $yes_values = $this->getYesValues();
     $no_values = $this->getNoValues();
 
     if (in_array($target, $yes_values)) {
-      $rsvp = $status_attending;
+      $rsvp = PhabricatorCalendarEventAcceptTransaction::TRANSACTIONTYPE;
     } else if (in_array($target, $no_values)) {
-      $rsvp = $status_declined;
+      $rsvp = PhabricatorCalendarEventDeclineTransaction::TRANSACTIONTYPE;
     } else {
-      $rsvp = null;
-    }
-
-    if ($rsvp === null) {
       return array();
     }
 
+    $xactions = array();
     $xactions[] = $object->getApplicationTransactionTemplate()
-      ->setTransactionType(PhabricatorCalendarEventTransaction::TYPE_INVITE)
-      ->setNewValue(array($viewer->getPHID() => $rsvp));
-
+      ->setTransactionType($rsvp)
+      ->setNewValue(true);
     return $xactions;
   }
 

src/applications/calendar/conduit/PhabricatorCalendarEventEditConduitAPIMethod.php

@@ -0,0 +1,19 @@
+<?php
+
+final class PhabricatorCalendarEventEditConduitAPIMethod
+  extends PhabricatorEditEngineAPIMethod {
+
+  public function getAPIMethodName() {
+    return 'calendar.event.edit';
+  }
+
+  public function newEditEngine() {
+    return new PhabricatorCalendarEventEditEngine();
+  }
+
+  public function getMethodSummary() {
+    return pht(
+      'Apply transactions to create a new event or edit an existing one.');
+  }
+
+}

src/applications/calendar/conduit/PhabricatorCalendarEventSearchConduitAPIMethod.php

@@ -0,0 +1,18 @@
+<?php
+
+final class PhabricatorCalendarEventSearchConduitAPIMethod
+  extends PhabricatorSearchEngineAPIMethod {
+
+  public function getAPIMethodName() {
+    return 'calendar.event.search';
+  }
+
+  public function newSearchEngine() {
+    return new PhabricatorCalendarEventSearchEngine();
+  }
+
+  public function getMethodSummary() {
+    return pht('Read information about events.');
+  }
+
+}

src/applications/calendar/controller/PhabricatorCalendarController.php

@@ -2,77 +2,4 @@
 
 abstract class PhabricatorCalendarController extends PhabricatorController {
 
-  protected function buildApplicationCrumbs() {
-    $crumbs = parent::buildApplicationCrumbs();
-
-    $actions = id(new PhabricatorActionListView())
-      ->setUser($this->getViewer())
-      ->addAction(
-        id(new PhabricatorActionView())
-          ->setName(pht('Create Event'))
-          ->setHref('/calendar/event/create/'))
-      ->addAction(
-        id(new PhabricatorActionView())
-          ->setName(pht('Create Public Event'))
-          ->setHref('/calendar/event/create/?mode=public'))
-      ->addAction(
-        id(new PhabricatorActionView())
-          ->setName(pht('Create Recurring Event'))
-          ->setHref('/calendar/event/create/?mode=recurring'));
-
-    $crumbs->addAction(
-      id(new PHUIListItemView())
-        ->setName(pht('Create Event'))
-        ->setHref($this->getApplicationURI().'event/create/')
-        ->setIcon('fa-plus-square')
-        ->setDropdownMenu($actions));
-
-    return $crumbs;
-  }
-
-  protected function getEventAtIndexForGhostPHID($viewer, $phid, $index) {
-    $result = id(new PhabricatorCalendarEventQuery())
-      ->setViewer($viewer)
-      ->withInstanceSequencePairs(
-        array(
-          array(
-            $phid,
-            $index,
-          ),
-        ))
-      ->requireCapabilities(
-        array(
-          PhabricatorPolicyCapability::CAN_VIEW,
-          PhabricatorPolicyCapability::CAN_EDIT,
-        ))
-      ->executeOne();
-
-    return $result;
-  }
-
-  protected function createEventFromGhost($viewer, $event, $index) {
-    $invitees = $event->getInvitees();
-
-    $new_ghost = $event->generateNthGhost($index, $viewer);
-    $new_ghost->attachParentEvent($event);
-
-    $unguarded = AphrontWriteGuard::beginScopedUnguardedWrites();
-    $new_ghost
-      ->setID(null)
-      ->setPHID(null)
-      ->removeViewerTimezone($viewer)
-      ->setViewPolicy($event->getViewPolicy())
-      ->setEditPolicy($event->getEditPolicy())
-      ->save();
-    $ghost_invitees = array();
-    foreach ($invitees as $invitee) {
-      $ghost_invitee = clone $invitee;
-      $ghost_invitee
-        ->setID(null)
-        ->setEventPHID($new_ghost->getPHID())
-        ->save();
-    }
-    unset($unguarded);
-    return $new_ghost;
-  }
 }

src/applications/calendar/controller/PhabricatorCalendarEventCancelController.php

@@ -6,7 +6,6 @@ final class PhabricatorCalendarEventCancelController
   public function handleRequest(AphrontRequest $request) {
     $viewer = $request->getViewer();
     $id = $request->getURIData('id');
-    $sequence = $request->getURIData('sequence');
 
     $event = id(new PhabricatorCalendarEventQuery())
       ->setViewer($viewer)
@@ -17,45 +16,29 @@ final class PhabricatorCalendarEventCancelController
           PhabricatorPolicyCapability::CAN_EDIT,
         ))
       ->executeOne();
-
-    if ($sequence) {
-      $parent_event = $event;
-      $event = $parent_event->generateNthGhost($sequence, $viewer);
-      $event->attachParentEvent($parent_event);
-    }
-
     if (!$event) {
       return new Aphront404Response();
     }
 
-    if (!$sequence) {
-      $cancel_uri = '/E'.$event->getID();
-    } else {
-      $cancel_uri = '/E'.$event->getID().'/'.$sequence;
-    }
+    $cancel_uri = $event->getURI();
 
+    $is_parent = $event->isParentEvent();
+    $is_child = $event->isChildEvent();
     $is_cancelled = $event->getIsCancelled();
-    $is_parent_cancelled = $event->getIsParentCancelled();
-    $is_parent = $event->getIsRecurrenceParent();
+
+    if ($is_child) {
+      $is_parent_cancelled = $event->getParentEvent()->getIsCancelled();
+    } else {
+      $is_parent_cancelled = false;
+    }
 
     $validation_exception = null;
-
     if ($request->isFormPost()) {
-      if ($is_cancelled && $sequence) {
-        return id(new AphrontRedirectResponse())->setURI($cancel_uri);
-      } else if ($sequence) {
-        $event = $this->createEventFromGhost(
-          $viewer,
-          $event,
-          $sequence);
-        $event->applyViewerTimezone($viewer);
-      }
-
       $xactions = array();
 
       $xaction = id(new PhabricatorCalendarEventTransaction())
         ->setTransactionType(
-          PhabricatorCalendarEventTransaction::TYPE_CANCEL)
+          PhabricatorCalendarEventCancelTransaction::TRANSACTIONTYPE)
         ->setNewValue(!$is_cancelled);
 
       $editor = id(new PhabricatorCalendarEventEditor())
@@ -73,43 +56,47 @@ final class PhabricatorCalendarEventCancelController
     }
 
     if ($is_cancelled) {
-      if ($sequence || $is_parent_cancelled) {
+      if ($is_parent_cancelled) {
         $title = pht('Cannot Reinstate Instance');
         $paragraph = pht(
-          'Cannot reinstate an instance of a cancelled recurring event.');
-        $cancel = pht('Cancel');
+          'You cannot reinstate an instance of a cancelled recurring event.');
+        $cancel = pht('Back');
         $submit = null;
-      } else if ($is_parent) {
-        $title = pht('Reinstate Recurrence');
+      } else if ($is_child) {
+        $title = pht('Reinstate Instance');
         $paragraph = pht(
-          'Reinstate all instances of this recurrence
-          that have not been individually cancelled?');
-        $cancel = pht("Don't Reinstate Recurrence");
-        $submit = pht('Reinstate Recurrence');
+          'Reinstate this instance of this recurring event?');
+        $cancel = pht('Back');
+        $submit = pht('Reinstate Instance');
+      } else if ($is_parent) {
+        $title = pht('Reinstate Recurring Event');
+        $paragraph = pht(
+          'Reinstate all instances of this recurring event which have not '.
+          'been individually cancelled?');
+        $cancel = pht('Back');
+        $submit = pht('Reinstate Recurring Event');
       } else {
         $title = pht('Reinstate Event');
         $paragraph = pht('Reinstate this event?');
-        $cancel = pht("Don't Reinstate Event");
+        $cancel = pht('Back');
         $submit = pht('Reinstate Event');
       }
     } else {
-      if ($sequence) {
+      if ($is_child) {
         $title = pht('Cancel Instance');
-        $paragraph = pht(
-          'Cancel just this instance of a recurring event.');
-        $cancel = pht("Don't Cancel Instance");
+        $paragraph = pht('Cancel this instance of this recurring event?');
+        $cancel = pht('Back');
         $submit = pht('Cancel Instance');
       } else if ($is_parent) {
-        $title = pht('Cancel Recurrence');
-        $paragraph = pht(
-          'Cancel the entire series of recurring events?');
-        $cancel = pht("Don't Cancel Recurrence");
-        $submit = pht('Cancel Recurrence');
+        $title = pht('Cancel Recurrin Event');
+        $paragraph = pht('Cancel this entire series of recurring events?');
+        $cancel = pht('Back');
+        $submit = pht('Cancel Recurring Event');
       } else {
         $title = pht('Cancel Event');
         $paragraph = pht(
-          'You can always reinstate the event later.');
-        $cancel = pht("Don't Cancel Event");
+          'Cancel this event? You can always reinstate the event later.');
+        $cancel = pht('Back');
         $submit = pht('Cancel Event');
       }
     }

src/applications/calendar/controller/PhabricatorCalendarEventCommentController.php

@@ -1,81 +0,0 @@
-<?php
-
-final class PhabricatorCalendarEventCommentController
-  extends PhabricatorCalendarController {
-
-  public function handleRequest(AphrontRequest $request) {
-    if (!$request->isFormPost()) {
-      return new Aphront400Response();
-    }
-
-    $viewer = $request->getViewer();
-    $id = $request->getURIData('id');
-
-    $is_preview = $request->isPreviewRequest();
-    $draft = PhabricatorDraft::buildFromRequest($request);
-
-    $event = id(new PhabricatorCalendarEventQuery())
-      ->setViewer($viewer)
-      ->withIDs(array($id))
-      ->executeOne();
-    if (!$event) {
-      return new Aphront404Response();
-    }
-
-    $index = $request->getURIData('sequence');
-    if ($index && !$is_preview) {
-      $result = $this->getEventAtIndexForGhostPHID(
-        $viewer,
-        $event->getPHID(),
-        $index);
-
-      if ($result) {
-        $event = $result;
-      } else {
-        $event = $this->createEventFromGhost(
-          $viewer,
-          $event,
-          $index);
-        $event->applyViewerTimezone($viewer);
-      }
-    }
-
-    $view_uri = '/'.$event->getMonogram();
-
-    $xactions = array();
-    $xactions[] = id(new PhabricatorCalendarEventTransaction())
-      ->setTransactionType(PhabricatorTransactions::TYPE_COMMENT)
-      ->attachComment(
-        id(new PhabricatorCalendarEventTransactionComment())
-          ->setContent($request->getStr('comment')));
-
-    $editor = id(new PhabricatorCalendarEventEditor())
-      ->setActor($viewer)
-      ->setContinueOnNoEffect($request->isContinueRequest())
-      ->setContentSourceFromRequest($request)
-      ->setIsPreview($is_preview);
-
-    try {
-      $xactions = $editor->applyTransactions($event, $xactions);
-    } catch (PhabricatorApplicationTransactionNoEffectException $ex) {
-      return id(new PhabricatorApplicationTransactionNoEffectResponse())
-        ->setCancelURI($view_uri)
-        ->setException($ex);
-    }
-
-    if ($draft) {
-      $draft->replaceOrDelete();
-    }
-
-    if ($request->isAjax() && $is_preview) {
-      return id(new PhabricatorApplicationTransactionResponse())
-        ->setViewer($viewer)
-        ->setTransactions($xactions)
-        ->setIsPreview($is_preview);
-    } else {
-      return id(new AphrontRedirectResponse())
-        ->setURI($view_uri);
-    }
-  }
-
-}

src/applications/calendar/controller/PhabricatorCalendarEventDragController.php

@@ -29,7 +29,7 @@ final class PhabricatorCalendarEventDragController
 
     $xactions = array();
 
-    $duration = $event->getDateTo() - $event->getDateFrom();
+    $duration = $event->getDuration();
 
     $start = $request->getInt('start');
     $start_value = id(AphrontFormDateControlValue::newFromEpoch(
@@ -41,16 +41,16 @@ final class PhabricatorCalendarEventDragController
       $viewer,
       $end));
 
-
     $xactions[] = id(new PhabricatorCalendarEventTransaction())
-      ->setTransactionType(PhabricatorCalendarEventTransaction::TYPE_START_DATE)
+      ->setTransactionType(
+        PhabricatorCalendarEventStartDateTransaction::TRANSACTIONTYPE)
       ->setNewValue($start_value);
 
     $xactions[] = id(new PhabricatorCalendarEventTransaction())
-      ->setTransactionType(PhabricatorCalendarEventTransaction::TYPE_END_DATE)
+      ->setTransactionType(
+        PhabricatorCalendarEventEndDateTransaction::TRANSACTIONTYPE)
       ->setNewValue($end_value);
 
-
     $editor = id(new PhabricatorCalendarEventEditor())
       ->setActor($viewer)
       ->setContinueOnMissingFields(true)

src/applications/calendar/controller/PhabricatorCalendarEventEditController.php

@@ -3,633 +3,10 @@
 final class PhabricatorCalendarEventEditController
   extends PhabricatorCalendarController {
 
-  private $id;
-
-  public function isCreate() {
-    return !$this->id;
-  }
-
   public function handleRequest(AphrontRequest $request) {
-    $viewer = $request->getViewer();
-    $user_phid = $viewer->getPHID();
-    $this->id = $request->getURIData('id');
-
-    $error_name = true;
-    $error_recurrence_end_date = null;
-    $error_start_date = true;
-    $error_end_date = true;
-    $validation_exception = null;
-
-    $is_recurring_id = celerity_generate_unique_node_id();
-    $recurrence_end_date_id = celerity_generate_unique_node_id();
-    $frequency_id = celerity_generate_unique_node_id();
-    $all_day_id = celerity_generate_unique_node_id();
-    $start_date_id = celerity_generate_unique_node_id();
-    $end_date_id = celerity_generate_unique_node_id();
-
-    $next_workflow = $request->getStr('next');
-    $uri_query = $request->getStr('query');
-
-    if ($this->isCreate()) {
-      $mode = $request->getStr('mode');
-      $event = PhabricatorCalendarEvent::initializeNewCalendarEvent(
-        $viewer,
-        $mode);
-
-      $create_start_year = $request->getInt('year');
-      $create_start_month = $request->getInt('month');
-      $create_start_day = $request->getInt('day');
-      $create_start_time = $request->getStr('time');
-
-      if ($create_start_year) {
-        $start = AphrontFormDateControlValue::newFromParts(
-          $viewer,
-          $create_start_year,
-          $create_start_month,
-          $create_start_day,
-          $create_start_time);
-        if (!$start->isValid()) {
-          return new Aphront400Response();
-        }
-        $start_value = AphrontFormDateControlValue::newFromEpoch(
-          $viewer,
-          $start->getEpoch());
-
-        $end = clone $start_value->getDateTime();
-        $end->modify('+1 hour');
-        $end_value = AphrontFormDateControlValue::newFromEpoch(
-          $viewer,
-          $end->format('U'));
-
-      } else {
-        list($start_value, $end_value) = $this->getDefaultTimeValues($viewer);
-      }
-
-      $recurrence_end_date_value = clone $end_value;
-      $recurrence_end_date_value->setOptional(true);
-
-      $submit_label = pht('Create');
-      $title = pht('Create Event');
-      $header_icon = 'fa-plus-square';
-      $redirect = 'created';
-      $subscribers = array();
-      $invitees = array($user_phid);
-      $cancel_uri = $this->getApplicationURI();
-    } else {
-      $event = id(new PhabricatorCalendarEventQuery())
-      ->setViewer($viewer)
-      ->withIDs(array($this->id))
-      ->requireCapabilities(
-        array(
-          PhabricatorPolicyCapability::CAN_VIEW,
-          PhabricatorPolicyCapability::CAN_EDIT,
-        ))
-      ->executeOne();
-
-      if (!$event) {
-        return new Aphront404Response();
-      }
-
-      if ($request->getURIData('sequence')) {
-        $index = $request->getURIData('sequence');
-
-        $result = $this->getEventAtIndexForGhostPHID(
-          $viewer,
-          $event->getPHID(),
-          $index);
-
-        if ($result) {
-          return id(new AphrontRedirectResponse())
-            ->setURI('/calendar/event/edit/'.$result->getID().'/');
-        }
-
-        $event = $this->createEventFromGhost(
-          $viewer,
-          $event,
-          $index);
-
-        return id(new AphrontRedirectResponse())
-          ->setURI('/calendar/event/edit/'.$event->getID().'/');
-      }
-
-      $end_value = AphrontFormDateControlValue::newFromEpoch(
-        $viewer,
-        $event->getDateTo());
-      $start_value = AphrontFormDateControlValue::newFromEpoch(
-        $viewer,
-        $event->getDateFrom());
-      $recurrence_end_date_value = id(clone $end_value)
-        ->setOptional(true);
-
-      $submit_label = pht('Update');
-      $title = pht('Edit Event: %s', $event->getName());
-      $header_icon = 'fa-pencil';
-
-      $subscribers = PhabricatorSubscribersQuery::loadSubscribersForPHID(
-        $event->getPHID());
-
-      $invitees = array();
-      foreach ($event->getInvitees() as $invitee) {
-        if ($invitee->isUninvited()) {
-          continue;
-        } else {
-          $invitees[] = $invitee->getInviteePHID();
-        }
-      }
-
-      $cancel_uri = '/'.$event->getMonogram();
-    }
-
-    if ($this->isCreate()) {
-      $projects = array();
-    } else {
-      $projects = PhabricatorEdgeQuery::loadDestinationPHIDs(
-        $event->getPHID(),
-        PhabricatorProjectObjectHasProjectEdgeType::EDGECONST);
-      $projects = array_reverse($projects);
-    }
-
-    $name = $event->getName();
-    $description = $event->getDescription();
-    $is_all_day = $event->getIsAllDay();
-    $is_recurring = $event->getIsRecurring();
-    $is_parent = $event->getIsRecurrenceParent();
-    $frequency = idx($event->getRecurrenceFrequency(), 'rule');
-    $icon = $event->getIcon();
-    $edit_policy = $event->getEditPolicy();
-    $view_policy = $event->getViewPolicy();
-    $space = $event->getSpacePHID();
-
-    if ($request->isFormPost()) {
-      $xactions = array();
-      $name = $request->getStr('name');
-
-      $start_value = AphrontFormDateControlValue::newFromRequest(
-        $request,
-        'start');
-      $end_value = AphrontFormDateControlValue::newFromRequest(
-        $request,
-        'end');
-      $recurrence_end_date_value = AphrontFormDateControlValue::newFromRequest(
-        $request,
-        'recurrenceEndDate');
-      $recurrence_end_date_value->setOptional(true);
-      $projects = $request->getArr('projects');
-      $description = $request->getStr('description');
-      $subscribers = $request->getArr('subscribers');
-      $edit_policy = $request->getStr('editPolicy');
-      $view_policy = $request->getStr('viewPolicy');
-      $space = $request->getStr('spacePHID');
-      $is_recurring = $request->getStr('isRecurring') ? 1 : 0;
-      $frequency = $request->getStr('frequency');
-      $is_all_day = $request->getStr('isAllDay');
-      $icon = $request->getStr('icon');
-
-      $invitees = $request->getArr('invitees');
-      $new_invitees = $this->getNewInviteeList($invitees, $event);
-      $status_attending = PhabricatorCalendarEventInvitee::STATUS_ATTENDING;
-      if ($this->isCreate()) {
-        $status = idx($new_invitees, $viewer->getPHID());
-        if ($status) {
-          $new_invitees[$viewer->getPHID()] = $status_attending;
-        }
-      }
-
-      $xactions[] = id(new PhabricatorCalendarEventTransaction())
-        ->setTransactionType(
-          PhabricatorCalendarEventTransaction::TYPE_NAME)
-        ->setNewValue($name);
-
-      if ($is_recurring && $this->isCreate()) {
-        $xactions[] = id(new PhabricatorCalendarEventTransaction())
-          ->setTransactionType(
-            PhabricatorCalendarEventTransaction::TYPE_RECURRING)
-          ->setNewValue($is_recurring);
-
-        $xactions[] = id(new PhabricatorCalendarEventTransaction())
-          ->setTransactionType(
-            PhabricatorCalendarEventTransaction::TYPE_FREQUENCY)
-          ->setNewValue(array('rule' => $frequency));
-
-        if (!$recurrence_end_date_value->isDisabled()) {
-          $xactions[] = id(new PhabricatorCalendarEventTransaction())
-            ->setTransactionType(
-              PhabricatorCalendarEventTransaction::TYPE_RECURRENCE_END_DATE)
-            ->setNewValue($recurrence_end_date_value);
-        }
-      }
-
-      if (($is_recurring && $this->isCreate()) || !$is_parent) {
-        $xactions[] = id(new PhabricatorCalendarEventTransaction())
-          ->setTransactionType(
-            PhabricatorCalendarEventTransaction::TYPE_ALL_DAY)
-          ->setNewValue($is_all_day);
-
-        $xactions[] = id(new PhabricatorCalendarEventTransaction())
-          ->setTransactionType(
-            PhabricatorCalendarEventTransaction::TYPE_ICON)
-          ->setNewValue($icon);
-
-        $xactions[] = id(new PhabricatorCalendarEventTransaction())
-          ->setTransactionType(
-            PhabricatorCalendarEventTransaction::TYPE_START_DATE)
-          ->setNewValue($start_value);
-
-        $xactions[] = id(new PhabricatorCalendarEventTransaction())
-          ->setTransactionType(
-            PhabricatorCalendarEventTransaction::TYPE_END_DATE)
-          ->setNewValue($end_value);
-      }
-
-
-      $xactions[] = id(new PhabricatorCalendarEventTransaction())
-        ->setTransactionType(
-          PhabricatorTransactions::TYPE_SUBSCRIBERS)
-        ->setNewValue(array('=' => array_fuse($subscribers)));
-
-      $xactions[] = id(new PhabricatorCalendarEventTransaction())
-        ->setTransactionType(
-          PhabricatorCalendarEventTransaction::TYPE_INVITE)
-        ->setNewValue($new_invitees);
-
-      $xactions[] = id(new PhabricatorCalendarEventTransaction())
-        ->setTransactionType(
-          PhabricatorCalendarEventTransaction::TYPE_DESCRIPTION)
-        ->setNewValue($description);
-
-      $xactions[] = id(new PhabricatorCalendarEventTransaction())
-        ->setTransactionType(PhabricatorTransactions::TYPE_VIEW_POLICY)
-        ->setNewValue($request->getStr('viewPolicy'));
-
-      $xactions[] = id(new PhabricatorCalendarEventTransaction())
-        ->setTransactionType(PhabricatorTransactions::TYPE_EDIT_POLICY)
-        ->setNewValue($request->getStr('editPolicy'));
-
-      $xactions[] = id(new PhabricatorCalendarEventTransaction())
-        ->setTransactionType(PhabricatorTransactions::TYPE_SPACE)
-        ->setNewValue($space);
-
-      $editor = id(new PhabricatorCalendarEventEditor())
-        ->setActor($viewer)
-        ->setContentSourceFromRequest($request)
-        ->setContinueOnNoEffect(true);
-
-      try {
-        $proj_edge_type = PhabricatorProjectObjectHasProjectEdgeType::EDGECONST;
-        $xactions[] = id(new PhabricatorCalendarEventTransaction())
-          ->setTransactionType(PhabricatorTransactions::TYPE_EDGE)
-          ->setMetadataValue('edge:type', $proj_edge_type)
-          ->setNewValue(array('=' => array_fuse($projects)));
-
-        $xactions = $editor->applyTransactions($event, $xactions);
-        $response = id(new AphrontRedirectResponse());
-        switch ($next_workflow) {
-          case 'day':
-            if (!$uri_query) {
-              $uri_query = 'month';
-            }
-            $year = $start_value->getDateTime()->format('Y');
-            $month = $start_value->getDateTime()->format('m');
-            $day = $start_value->getDateTime()->format('d');
-            $response->setURI(
-              '/calendar/query/'.$uri_query.'/'.$year.'/'.$month.'/'.$day.'/');
-            break;
-          default:
-            $response->setURI('/E'.$event->getID());
-            break;
-        }
-        return $response;
-      } catch (PhabricatorApplicationTransactionValidationException $ex) {
-        $validation_exception = $ex;
-        $error_name = $ex->getShortMessage(
-          PhabricatorCalendarEventTransaction::TYPE_NAME);
-        $error_start_date = $ex->getShortMessage(
-          PhabricatorCalendarEventTransaction::TYPE_START_DATE);
-        $error_end_date = $ex->getShortMessage(
-          PhabricatorCalendarEventTransaction::TYPE_END_DATE);
-        $error_recurrence_end_date = $ex->getShortMessage(
-          PhabricatorCalendarEventTransaction::TYPE_RECURRENCE_END_DATE);
-      }
-    }
-
-    $is_recurring_checkbox = null;
-    $recurrence_end_date_control = null;
-    $recurrence_frequency_select = null;
-
-    $all_day_checkbox = null;
-    $start_control = null;
-    $end_control = null;
-
-    $recurring_date_edit_label = null;
-
-    $current_policies = id(new PhabricatorPolicyQuery())
-      ->setViewer($viewer)
-      ->setObject($event)
-      ->execute();
-
-    $name = id(new AphrontFormTextControl())
-      ->setLabel(pht('Name'))
-      ->setName('name')
-      ->setValue($name)
-      ->setError($error_name);
-
-    if ($this->isCreate()) {
-      Javelin::initBehavior('recurring-edit', array(
-        'isRecurring' => $is_recurring_id,
-        'frequency' => $frequency_id,
-        'recurrenceEndDate' => $recurrence_end_date_id,
-      ));
-
-      $is_recurring_checkbox = id(new AphrontFormCheckboxControl())
-        ->addCheckbox(
-          'isRecurring',
-          1,
-          pht('Recurring Event'),
-          $is_recurring,
-          $is_recurring_id);
-
-      $recurrence_end_date_control = id(new AphrontFormDateControl())
-        ->setUser($viewer)
-        ->setName('recurrenceEndDate')
-        ->setLabel(pht('Recurrence End Date'))
-        ->setError($error_recurrence_end_date)
-        ->setValue($recurrence_end_date_value)
-        ->setID($recurrence_end_date_id)
-        ->setIsTimeDisabled(true)
-        ->setIsDisabled($recurrence_end_date_value->isDisabled())
-        ->setAllowNull(true);
-
-      $recurrence_frequency_select = id(new AphrontFormSelectControl())
-        ->setName('frequency')
-        ->setOptions(array(
-            PhabricatorCalendarEvent::FREQUENCY_DAILY => pht('Daily'),
-            PhabricatorCalendarEvent::FREQUENCY_WEEKLY => pht('Weekly'),
-            PhabricatorCalendarEvent::FREQUENCY_MONTHLY => pht('Monthly'),
-            PhabricatorCalendarEvent::FREQUENCY_YEARLY => pht('Yearly'),
-          ))
-        ->setValue($frequency)
-        ->setLabel(pht('Recurring Event Frequency'))
-        ->setID($frequency_id)
-        ->setDisabled(!$is_recurring);
-    }
-
-    if ($this->isCreate() || (!$is_parent && !$this->isCreate())) {
-      Javelin::initBehavior('event-all-day', array(
-        'allDayID' => $all_day_id,
-        'startDateID' => $start_date_id,
-        'endDateID' => $end_date_id,
-      ));
-
-      $all_day_checkbox = id(new AphrontFormCheckboxControl())
-        ->addCheckbox(
-          'isAllDay',
-          1,
-          pht('All Day Event'),
-          $is_all_day,
-          $all_day_id);
-
-      $start_control = id(new AphrontFormDateControl())
-        ->setUser($viewer)
-        ->setName('start')
-        ->setLabel(pht('Start'))
-        ->setError($error_start_date)
-        ->setValue($start_value)
-        ->setID($start_date_id)
-        ->setIsTimeDisabled($is_all_day)
-        ->setEndDateID($end_date_id);
-
-      $end_control = id(new AphrontFormDateControl())
-        ->setUser($viewer)
-        ->setName('end')
-        ->setLabel(pht('End'))
-        ->setError($error_end_date)
-        ->setValue($end_value)
-        ->setID($end_date_id)
-        ->setIsTimeDisabled($is_all_day);
-    } else if ($is_parent) {
-      $recurring_date_edit_label = id(new AphrontFormStaticControl())
-        ->setUser($viewer)
-        ->setValue(pht('Date and time of recurring event cannot be edited.'));
-
-      if (!$recurrence_end_date_value->isDisabled()) {
-        $disabled_recurrence_end_date_value =
-          $recurrence_end_date_value->getValueAsFormat('M d, Y');
-        $recurrence_end_date_control = id(new AphrontFormStaticControl())
-          ->setUser($viewer)
-          ->setLabel(pht('Recurrence End Date'))
-          ->setValue($disabled_recurrence_end_date_value)
-          ->setDisabled(true);
-      }
-
-      $recurrence_frequency_select = id(new AphrontFormSelectControl())
-        ->setName('frequency')
-        ->setOptions(array(
-          'daily' => pht('Daily'),
-          'weekly' => pht('Weekly'),
-          'monthly' => pht('Monthly'),
-          'yearly' => pht('Yearly'),
-        ))
-        ->setValue($frequency)
-        ->setLabel(pht('Recurring Event Frequency'))
-        ->setID($frequency_id)
-        ->setDisabled(true);
-
-      $all_day_checkbox = id(new AphrontFormCheckboxControl())
-        ->addCheckbox(
-          'isAllDay',
-          1,
-          pht('All Day Event'),
-          $is_all_day,
-          $all_day_id)
-        ->setDisabled(true);
-
-      $start_disabled = $start_value->getValueAsFormat('M d, Y, g:i A');
-      $end_disabled = $end_value->getValueAsFormat('M d, Y, g:i A');
-
-      $start_control = id(new AphrontFormStaticControl())
-        ->setUser($viewer)
-        ->setLabel(pht('Start'))
-        ->setValue($start_disabled)
-        ->setDisabled(true);
-
-      $end_control = id(new AphrontFormStaticControl())
-        ->setUser($viewer)
-        ->setLabel(pht('End'))
-        ->setValue($end_disabled);
-    }
-
-    $projects = id(new AphrontFormTokenizerControl())
-      ->setLabel(pht('Tags'))
-      ->setName('projects')
-      ->setValue($projects)
-      ->setUser($viewer)
-      ->setDatasource(new PhabricatorProjectDatasource());
-
-    $description = id(new PhabricatorRemarkupControl())
-      ->setLabel(pht('Description'))
-      ->setName('description')
-      ->setValue($description)
-      ->setUser($viewer);
-
-    $view_policies = id(new AphrontFormPolicyControl())
-      ->setUser($viewer)
-      ->setValue($view_policy)
-      ->setCapability(PhabricatorPolicyCapability::CAN_VIEW)
-      ->setPolicyObject($event)
-      ->setPolicies($current_policies)
-      ->setSpacePHID($space)
-      ->setName('viewPolicy');
-    $edit_policies = id(new AphrontFormPolicyControl())
-      ->setUser($viewer)
-      ->setValue($edit_policy)
-      ->setCapability(PhabricatorPolicyCapability::CAN_EDIT)
-      ->setPolicyObject($event)
-      ->setPolicies($current_policies)
-      ->setName('editPolicy');
-
-    $subscribers = id(new AphrontFormTokenizerControl())
-      ->setLabel(pht('Subscribers'))
-      ->setName('subscribers')
-      ->setValue($subscribers)
-      ->setUser($viewer)
-      ->setDatasource(new PhabricatorMetaMTAMailableDatasource());
-
-    $invitees = id(new AphrontFormTokenizerControl())
-      ->setLabel(pht('Invitees'))
-      ->setName('invitees')
-      ->setValue($invitees)
-      ->setUser($viewer)
-      ->setDatasource(new PhabricatorMetaMTAMailableDatasource());
-
-
-    $icon = id(new PHUIFormIconSetControl())
-      ->setLabel(pht('Icon'))
-      ->setName('icon')
-      ->setIconSet(new PhabricatorCalendarIconSet())
-      ->setValue($icon);
-
-    $form = id(new AphrontFormView())
-      ->addHiddenInput('next', $next_workflow)
-      ->addHiddenInput('query', $uri_query)
-      ->setUser($viewer)
-      ->appendChild($name);
-
-    if ($recurring_date_edit_label) {
-      $form->appendControl($recurring_date_edit_label);
-    }
-    if ($is_recurring_checkbox) {
-      $form->appendChild($is_recurring_checkbox);
-    }
-    if ($recurrence_end_date_control) {
-      $form->appendChild($recurrence_end_date_control);
-    }
-    if ($recurrence_frequency_select) {
-      $form->appendControl($recurrence_frequency_select);
-    }
-
-    $form
-      ->appendChild($all_day_checkbox)
-      ->appendChild($start_control)
-      ->appendChild($end_control)
-      ->appendControl($view_policies)
-      ->appendControl($edit_policies)
-      ->appendControl($subscribers)
-      ->appendControl($invitees)
-      ->appendChild($projects)
-      ->appendChild($description)
-      ->appendChild($icon);
-
-
-    if ($request->isAjax()) {
-      return $this->newDialog()
-        ->setTitle($title)
-        ->setWidth(AphrontDialogView::WIDTH_FULL)
-        ->appendForm($form)
-        ->addCancelButton($cancel_uri)
-        ->addSubmitButton($submit_label);
-    }
-
-    $submit = id(new AphrontFormSubmitControl())
-      ->addCancelButton($cancel_uri)
-      ->setValue($submit_label);
-
-    $form->appendChild($submit);
-
-    $form_box = id(new PHUIObjectBoxView())
-      ->setHeaderText(pht('Event'))
-      ->setBackground(PHUIObjectBoxView::BLUE_PROPERTY)
-      ->setValidationException($validation_exception)
-      ->setForm($form);
-
-    $crumbs = $this->buildApplicationCrumbs();
-
-    if (!$this->isCreate()) {
-      $crumbs->addTextCrumb('E'.$event->getId(), '/E'.$event->getId());
-      $crumb_title = pht('Edit Event');
-    } else {
-      $crumb_title = pht('Create Event');
-    }
-
-    $crumbs->addTextCrumb($crumb_title);
-    $crumbs->setBorder(true);
-
-    $header = id(new PHUIHeaderView())
-      ->setHeader($title)
-      ->setHeaderIcon($header_icon);
-
-    $view = id(new PHUITwoColumnView())
-      ->setHeader($header)
-      ->setFooter($form_box);
-
-    return $this->newPage()
-      ->setTitle($title)
-      ->setCrumbs($crumbs)
-      ->appendChild($view);
-  }
-
-
-  public function getNewInviteeList(array $phids, $event) {
-    $invitees = $event->getInvitees();
-    $invitees = mpull($invitees, null, 'getInviteePHID');
-    $invited_status = PhabricatorCalendarEventInvitee::STATUS_INVITED;
-    $uninvited_status = PhabricatorCalendarEventInvitee::STATUS_UNINVITED;
-    $phids = array_fuse($phids);
-
-    $new = array();
-    foreach ($phids as $phid) {
-      $old_status = $event->getUserInviteStatus($phid);
-      if ($old_status != $uninvited_status) {
-        continue;
-      }
-      $new[$phid] = $invited_status;
-    }
-
-    foreach ($invitees as $invitee) {
-      $deleted_invitee = !idx($phids, $invitee->getInviteePHID());
-      if ($deleted_invitee) {
-        $new[$invitee->getInviteePHID()] = $uninvited_status;
-      }
-    }
-
-    return $new;
-  }
-
-  private function getDefaultTimeValues($viewer) {
-    $start = new DateTime('@'.time());
-    $start->setTimeZone($viewer->getTimeZone());
-
-    $start->setTime($start->format('H'), 0, 0);
-    $start->modify('+1 hour');
-    $end = id(clone $start)->modify('+1 hour');
-
-    $start_value = AphrontFormDateControlValue::newFromEpoch(
-      $viewer,
-      $start->format('U'));
-    $end_value = AphrontFormDateControlValue::newFromEpoch(
-      $viewer,
-      $end->format('U'));
-
-    return array($start_value, $end_value);
+    return id(new PhabricatorCalendarEventEditEngine())
+      ->setController($this)
+      ->buildResponse();
   }
 
 }

src/applications/calendar/controller/PhabricatorCalendarEventJoinController.php

@@ -3,57 +3,46 @@
 final class PhabricatorCalendarEventJoinController
   extends PhabricatorCalendarController {
 
-  const ACTION_ACCEPT = 'accept';
-  const ACTION_DECLINE = 'decline';
-  const ACTION_JOIN = 'join';
-
   public function handleRequest(AphrontRequest $request) {
+    $viewer = $this->getViewer();
     $id = $request->getURIData('id');
-    $action = $request->getURIData('action');
-
-    $request = $this->getRequest();
-    $viewer = $request->getViewer();
-    $declined_status = PhabricatorCalendarEventInvitee::STATUS_DECLINED;
-    $attending_status = PhabricatorCalendarEventInvitee::STATUS_ATTENDING;
 
     $event = id(new PhabricatorCalendarEventQuery())
       ->setViewer($viewer)
       ->withIDs(array($id))
       ->executeOne();
-
     if (!$event) {
       return new Aphront404Response();
     }
 
-    $cancel_uri = '/E'.$event->getID();
-    $validation_exception = null;
-
-    $is_attending = $event->getIsUserAttending($viewer->getPHID());
-
-    if ($request->isFormPost()) {
-      $new_status = null;
+    $cancel_uri = $event->getURI();
 
+    $action = $request->getURIData('action');
     switch ($action) {
-        case self::ACTION_ACCEPT:
-          $new_status = $attending_status;
+      case 'accept':
+        $is_join = true;
         break;
-        case self::ACTION_JOIN:
-          if ($is_attending) {
-            $new_status = $declined_status;
-          } else {
-            $new_status = $attending_status;
-          }
+      case 'decline':
+        $is_join = false;
         break;
-        case self::ACTION_DECLINE:
-          $new_status = $declined_status;
+      default:
+        $is_join = !$event->getIsUserAttending($viewer->getPHID());
         break;
     }
 
-      $new_status = array($viewer->getPHID() => $new_status);
+    $validation_exception = null;
+    if ($request->isFormPost()) {
+      if ($is_join) {
+        $xaction_type =
+          PhabricatorCalendarEventAcceptTransaction::TRANSACTIONTYPE;
+      } else {
+        $xaction_type =
+          PhabricatorCalendarEventDeclineTransaction::TRANSACTIONTYPE;
+      }
 
       $xaction = id(new PhabricatorCalendarEventTransaction())
-        ->setTransactionType(PhabricatorCalendarEventTransaction::TYPE_INVITE)
-        ->setNewValue($new_status);
+        ->setTransactionType($xaction_type)
+        ->setNewValue(true);
 
       $editor = id(new PhabricatorCalendarEventEditor())
         ->setActor($viewer)
@@ -69,8 +58,7 @@ final class PhabricatorCalendarEventJoinController
       }
     }
 
-    if (($action == self::ACTION_JOIN && !$is_attending)
-      || $action == self::ACTION_ACCEPT) {
+    if ($is_join) {
       $title = pht('Join Event');
       $paragraph = pht('Would you like to join this event?');
       $submit = pht('Join');

src/applications/calendar/controller/PhabricatorCalendarEventListController.php

@@ -19,24 +19,19 @@ final class PhabricatorCalendarEventListController
 
     $controller = id(new PhabricatorApplicationSearchController())
       ->setQueryKey($request->getURIData('queryKey'))
-      ->setSearchEngine($engine)
-      ->setNavigation($this->buildSideNav());
+      ->setSearchEngine($engine);
+
     return $this->delegateToController($controller);
   }
 
-  public function buildSideNav() {
-    $user = $this->getRequest()->getUser();
+  protected function buildApplicationCrumbs() {
+    $crumbs = parent::buildApplicationCrumbs();
 
-    $nav = new AphrontSideNavFilterView();
-    $nav->setBaseURI(new PhutilURI($this->getApplicationURI()));
+    id(new PhabricatorCalendarEventEditEngine())
+      ->setViewer($this->getViewer())
+      ->addActionToCrumbs($crumbs);
 
-    id(new PhabricatorCalendarEventSearchEngine())
-      ->setViewer($user)
-      ->addNavigationItems($nav->getMenu());
-
-    $nav->selectFilter(null);
-
-    return $nav;
+    return $crumbs;
   }
 
 }

src/applications/calendar/controller/PhabricatorCalendarEventViewController.php

@@ -9,102 +9,78 @@ final class PhabricatorCalendarEventViewController
 
   public function handleRequest(AphrontRequest $request) {
     $viewer = $request->getViewer();
-    $id = $request->getURIData('id');
-    $sequence = $request->getURIData('sequence');
 
-    $timeline = null;
-
-    $event = id(new PhabricatorCalendarEventQuery())
-      ->setViewer($viewer)
-      ->withIDs(array($id))
-      ->executeOne();
+    $event = $this->loadEvent();
     if (!$event) {
       return new Aphront404Response();
     }
 
-    if ($sequence) {
-      $result = $this->getEventAtIndexForGhostPHID(
-        $viewer,
-        $event->getPHID(),
-        $sequence);
-
-      if ($result) {
-        $parent_event = $event;
-        $event = $result;
-        $event->attachParentEvent($parent_event);
-        return id(new AphrontRedirectResponse())
-          ->setURI('/E'.$result->getID());
-      } else if ($sequence && $event->getIsRecurring()) {
-        $parent_event = $event;
-        $event = $event->generateNthGhost($sequence, $viewer);
-        $event->attachParentEvent($parent_event);
-      } else if ($sequence) {
-        return new Aphront404Response();
+    // If we looked up or generated a stub event, redirect to that event's
+    // canonical URI.
+    $id = $request->getURIData('id');
+    if ($event->getID() != $id) {
+      $uri = $event->getURI();
+      return id(new AphrontRedirectResponse())->setURI($uri);
     }
 
-      $title = $event->getMonogram().' ('.$sequence.')';
-      $page_title = $title.' '.$event->getName();
+    $monogram = $event->getMonogram();
+    $page_title = $monogram.' '.$event->getName();
     $crumbs = $this->buildApplicationCrumbs();
-      $crumbs->addTextCrumb($title, '/'.$event->getMonogram().'/'.$sequence);
 
+    $start = new DateTime('@'.$event->getViewerDateFrom());
+    $start->setTimeZone($viewer->getTimeZone());
 
-    } else {
-      $title = 'E'.$event->getID();
-      $page_title = $title.' '.$event->getName();
-      $crumbs = $this->buildApplicationCrumbs();
-      $crumbs->addTextCrumb($title);
+    $crumbs->addTextCrumb(
+      $start->format('F Y'),
+      '/calendar/query/month/'.$start->format('Y/m/'));
+
+    $crumbs->addTextCrumb(
+      $start->format('D jS'),
+      '/calendar/query/month/'.$start->format('Y/m/d/'));
+
+    $crumbs->addTextCrumb($monogram);
     $crumbs->setBorder(true);
-    }
 
-    if (!$event->getIsGhostEvent()) {
     $timeline = $this->buildTransactionTimeline(
       $event,
       new PhabricatorCalendarEventTransactionQuery());
-    }
 
     $header = $this->buildHeaderView($event);
+    $subheader = $this->buildSubheaderView($event);
     $curtain = $this->buildCurtain($event);
     $details = $this->buildPropertySection($event);
+    $recurring = $this->buildRecurringSection($event);
     $description = $this->buildDescriptionView($event);
 
-    $is_serious = PhabricatorEnv::getEnvConfig('phabricator.serious-business');
-    $add_comment_header = $is_serious
-      ? pht('Add Comment')
-      : pht('Add To Plate');
-    $draft = PhabricatorDraft::newFromUserAndKey($viewer, $event->getPHID());
-    if ($sequence) {
-      $comment_uri = $this->getApplicationURI(
-        '/event/comment/'.$event->getID().'/'.$sequence.'/');
-    } else {
-      $comment_uri = $this->getApplicationURI(
-        '/event/comment/'.$event->getID().'/');
-    }
-    $add_comment_form = id(new PhabricatorApplicationTransactionCommentView())
-      ->setUser($viewer)
-      ->setObjectPHID($event->getPHID())
-      ->setDraft($draft)
-      ->setHeaderText($add_comment_header)
-      ->setAction($comment_uri)
-      ->setSubmitButtonName(pht('Add Comment'));
+    $comment_view = id(new PhabricatorCalendarEventEditEngine())
+      ->setViewer($viewer)
+      ->buildEditEngineCommentView($event);
+
+    $timeline->setQuoteRef($monogram);
+    $comment_view->setTransactionTimeline($timeline);
+
+    $details_header = id(new PHUIHeaderView())
+      ->setHeader(pht('Details'));
+    $recurring_header = $this->buildRecurringHeader($event);
 
     $view = id(new PHUITwoColumnView())
       ->setHeader($header)
-      ->setMainColumn(array(
+      ->setSubheader($subheader)
+      ->setMainColumn(
+        array(
           $timeline,
-          $add_comment_form,
+          $comment_view,
         ))
       ->setCurtain($curtain)
-      ->addPropertySection(pht('Details'), $details)
+      ->addPropertySection($details_header, $details)
+      ->addPropertySection($recurring_header, $recurring)
       ->addPropertySection(pht('Description'), $description);
 
     return $this->newPage()
       ->setTitle($page_title)
       ->setCrumbs($crumbs)
       ->setPageObjectPHIDs(array($event->getPHID()))
-      ->appendChild(
-        array(
-          $view,
-      ));
+      ->appendChild($view);
   }
 
   private function buildHeaderView(
@@ -112,47 +88,33 @@ final class PhabricatorCalendarEventViewController
     $viewer = $this->getViewer();
     $id = $event->getID();
 
-    $is_cancelled = $event->getIsCancelled();
-    $icon = $is_cancelled ? ('fa-ban') : ('fa-check');
-    $color = $is_cancelled ? ('red') : ('bluegrey');
-    $status = $is_cancelled ? pht('Cancelled') : pht('Active');
-
-    $invite_status = $event->getUserInviteStatus($viewer->getPHID());
-    $status_invited = PhabricatorCalendarEventInvitee::STATUS_INVITED;
-    $is_invite_pending = ($invite_status == $status_invited);
+    if ($event->isCancelledEvent()) {
+      $icon = 'fa-ban';
+      $color = 'red';
+      $status = pht('Cancelled');
+    } else {
+      $icon = 'fa-check';
+      $color = 'bluegrey';
+      $status = pht('Active');
+    }
 
     $header = id(new PHUIHeaderView())
       ->setUser($viewer)
       ->setHeader($event->getName())
       ->setStatus($icon, $color, $status)
       ->setPolicyObject($event)
-      ->setHeaderIcon('fa-calendar');
+      ->setHeaderIcon($event->getIcon());
 
-    if ($is_invite_pending) {
-      $decline_button = id(new PHUIButtonView())
-        ->setTag('a')
-        ->setIcon('fa-times grey')
-        ->setHref($this->getApplicationURI("/event/decline/{$id}/"))
-        ->setWorkflow(true)
-        ->setText(pht('Decline'));
-
-      $accept_button = id(new PHUIButtonView())
-        ->setTag('a')
-        ->setIcon('fa-check green')
-        ->setHref($this->getApplicationURI("/event/accept/{$id}/"))
-        ->setWorkflow(true)
-        ->setText(pht('Accept'));
-
-      $header->addActionLink($decline_button)
-        ->addActionLink($accept_button);
+    foreach ($this->buildRSVPActions($event) as $action) {
+      $header->addActionLink($action);
     }
+
     return $header;
   }
 
   private function buildCurtain(PhabricatorCalendarEvent $event) {
     $viewer = $this->getRequest()->getUser();
     $id = $event->getID();
-    $is_cancelled = $event->getIsCancelled();
     $is_attending = $event->getIsUserAttending($viewer->getPHID());
 
     $can_edit = PhabricatorPolicyFilter::hasCapability(
@@ -160,19 +122,11 @@ final class PhabricatorCalendarEventViewController
       $event,
       PhabricatorPolicyCapability::CAN_EDIT);
 
-    $edit_label = false;
-    $edit_uri = false;
-
-    if ($event->getIsGhostEvent()) {
-      $index = $event->getSequenceIndex();
-      $edit_label = pht('Edit This Instance');
-      $edit_uri = "event/edit/{$id}/{$index}/";
-    } else if ($event->getIsRecurrenceException()) {
-      $edit_label = pht('Edit This Instance');
     $edit_uri = "event/edit/{$id}/";
+    if ($event->isChildEvent()) {
+      $edit_label = pht('Edit This Instance');
     } else {
-      $edit_label = pht('Edit');
-      $edit_uri = "event/edit/{$id}/";
+      $edit_label = pht('Edit Event');
     }
 
     $curtain = $this->newCurtainView($event);
@@ -204,31 +158,24 @@ final class PhabricatorCalendarEventViewController
     }
 
     $cancel_uri = $this->getApplicationURI("event/cancel/{$id}/");
+    $cancel_disabled = !$can_edit;
 
-    if ($event->getIsGhostEvent()) {
-      $index = $event->getSequenceIndex();
-      $can_reinstate = $event->getIsParentCancelled();
-
+    if ($event->isChildEvent()) {
       $cancel_label = pht('Cancel This Instance');
       $reinstate_label = pht('Reinstate This Instance');
-      $cancel_disabled = (!$can_edit || $can_reinstate);
-      $cancel_uri = $this->getApplicationURI("event/cancel/{$id}/{$index}/");
-    } else if ($event->getIsRecurrenceException()) {
-      $can_reinstate = $event->getIsParentCancelled();
-      $cancel_label = pht('Cancel This Instance');
-      $reinstate_label = pht('Reinstate This Instance');
-      $cancel_disabled = (!$can_edit || $can_reinstate);
-    } else if ($event->getIsRecurrenceParent()) {
+
+      if ($event->getParentEvent()->getIsCancelled()) {
+        $cancel_disabled = true;
+      }
+    } else if ($event->isParentEvent()) {
       $cancel_label = pht('Cancel All');
       $reinstate_label = pht('Reinstate All');
-      $cancel_disabled = !$can_edit;
     } else {
       $cancel_label = pht('Cancel Event');
       $reinstate_label = pht('Reinstate Event');
-      $cancel_disabled = !$can_edit;
     }
 
-    if ($is_cancelled) {
+    if ($event->isCancelledEvent()) {
       $curtain->addAction(
         id(new PhabricatorActionView())
           ->setName($reinstate_label)
@@ -256,56 +203,6 @@ final class PhabricatorCalendarEventViewController
     $properties = id(new PHUIPropertyListView())
       ->setUser($viewer);
 
-    if ($event->getIsAllDay()) {
-      $date_start = phabricator_date($event->getDateFrom(), $viewer);
-      $date_end = phabricator_date($event->getDateTo(), $viewer);
-
-      if ($date_start == $date_end) {
-        $properties->addProperty(
-          pht('Time'),
-          phabricator_date($event->getDateFrom(), $viewer));
-      } else {
-        $properties->addProperty(
-          pht('Starts'),
-          phabricator_date($event->getDateFrom(), $viewer));
-        $properties->addProperty(
-          pht('Ends'),
-          phabricator_date($event->getDateTo(), $viewer));
-      }
-    } else {
-      $properties->addProperty(
-        pht('Starts'),
-        phabricator_datetime($event->getDateFrom(), $viewer));
-
-      $properties->addProperty(
-        pht('Ends'),
-        phabricator_datetime($event->getDateTo(), $viewer));
-    }
-
-    if ($event->getIsRecurring()) {
-      $properties->addProperty(
-        pht('Recurs'),
-        ucwords(idx($event->getRecurrenceFrequency(), 'rule')));
-
-      if ($event->getRecurrenceEndDate()) {
-        $properties->addProperty(
-          pht('Recurrence Ends'),
-          phabricator_datetime($event->getRecurrenceEndDate(), $viewer));
-      }
-
-      if ($event->getInstanceOfEventPHID()) {
-        $properties->addProperty(
-          pht('Recurrence of Event'),
-          pht('%s of %s',
-            $event->getSequenceIndex(),
-            $viewer->renderHandle($event->getInstanceOfEventPHID())->render()));
-      }
-    }
-
-    $properties->addProperty(
-      pht('Host'),
-      $viewer->renderHandle($event->getUserPHID()));
-
     $invitees = $event->getInvitees();
     foreach ($invitees as $key => $invitee) {
       if ($invitee->isUninvited()) {
@@ -361,10 +258,120 @@ final class PhabricatorCalendarEventViewController
 
     $properties->invokeWillRenderEvent();
 
-    $properties->addProperty(
-      pht('Icon'),
-      id(new PhabricatorCalendarIconSet())
-        ->getIconLabel($event->getIcon()));
+    return $properties;
+  }
+
+  private function buildRecurringHeader(PhabricatorCalendarEvent $event) {
+    $viewer = $this->getViewer();
+
+    if (!$event->getIsRecurring()) {
+      return null;
+    }
+
+    $header = id(new PHUIHeaderView())
+      ->setHeader(pht('Recurring Event'));
+
+    $sequence = $event->getSequenceIndex();
+    if ($event->isParentEvent()) {
+      $parent = $event;
+    } else {
+      $parent = $event->getParentEvent();
+    }
+
+    $next_uri = $parent->getURI().'/'.($sequence + 1);
+    if ($sequence) {
+      if ($sequence > 1) {
+        $previous_uri = $parent->getURI().'/'.($sequence - 1);
+      } else {
+        $previous_uri = $parent->getURI();
+      }
+      $has_previous = true;
+    } else {
+      $has_previous = false;
+      $previous_uri = null;
+    }
+
+    $prev_button = id(new PHUIButtonView())
+      ->setTag('a')
+      ->setIcon('fa-chevron-left')
+      ->setHref($previous_uri)
+      ->setDisabled(!$has_previous)
+      ->setText(pht('Previous'));
+
+    $next_button = id(new PHUIButtonView())
+      ->setTag('a')
+      ->setIcon('fa-chevron-right')
+      ->setHref($next_uri)
+      ->setText(pht('Next'));
+
+    $header
+      ->addActionLink($next_button)
+      ->addActionLink($prev_button);
+
+    return $header;
+  }
+
+  private function buildRecurringSection(PhabricatorCalendarEvent $event) {
+    $viewer = $this->getViewer();
+
+    if (!$event->getIsRecurring()) {
+      return null;
+    }
+
+    $properties = id(new PHUIPropertyListView())
+      ->setUser($viewer);
+
+    $is_parent = $event->isParentEvent();
+    if ($is_parent) {
+      $parent_link = null;
+    } else {
+      $parent = $event->getParentEvent();
+      $parent_link = $viewer
+        ->renderHandle($parent->getPHID())
+        ->render();
+    }
+
+    $rule = $event->getFrequencyRule();
+    switch ($rule) {
+      case PhabricatorCalendarEvent::FREQUENCY_DAILY:
+        if ($is_parent) {
+          $message = pht('This event repeats every day.');
+        } else {
+          $message = pht(
+            'This event is an instance of %s, and repeats every day.',
+            $parent_link);
+        }
+        break;
+      case PhabricatorCalendarEvent::FREQUENCY_WEEKLY:
+        if ($is_parent) {
+          $message = pht('This event repeats every week.');
+        } else {
+          $message = pht(
+            'This event is an instance of %s, and repeats every week.',
+            $parent_link);
+        }
+        break;
+      case PhabricatorCalendarEvent::FREQUENCY_MONTHLY:
+        if ($is_parent) {
+          $message = pht('This event repeats every month.');
+        } else {
+          $message = pht(
+            'This event is an instance of %s, and repeats every month.',
+            $parent_link);
+        }
+        break;
+      case PhabricatorCalendarEvent::FREQUENCY_YEARLY:
+        if ($is_parent) {
+          $message = pht('This event repeats every year.');
+        } else {
+          $message = pht(
+            'This event is an instance of %s, and repeats every year.',
+            $parent_link);
+        }
+        break;
+    }
+
+    $properties->addProperty(pht('Event Series'), $message);
 
     return $properties;
   }
@@ -385,4 +392,120 @@ final class PhabricatorCalendarEventViewController
     return null;
   }
 
+  private function loadEvent() {
+    $request = $this->getRequest();
+    $viewer = $this->getViewer();
+
+    $id = $request->getURIData('id');
+    $sequence = $request->getURIData('sequence');
+
+    // We're going to figure out which event you're trying to look at. Most of
+    // the time this is simple, but you may be looking at an instance of a
+    // recurring event which we haven't generated an object for.
+
+    // If you are, we're going to generate a "stub" event so we have a real
+    // ID and PHID to work with, since the rest of the infrastructure relies
+    // on these identifiers existing.
+
+    // Load the event identified by ID first.
+    $event = id(new PhabricatorCalendarEventQuery())
+      ->setViewer($viewer)
+      ->withIDs(array($id))
+      ->executeOne();
+    if (!$event) {
+      return null;
+    }
+
+    // If we aren't looking at an instance of this event, this is a completely
+    // normal request and we can just return this event.
+    if (!$sequence) {
+      return $event;
+    }
+
+    // When you view "E123/999", E123 is normally the parent event. However,
+    // you might visit a different instance first instead and then fiddle
+    // with the URI. If the event we're looking at is a child, we are going
+    // to act on the parent instead.
+    if ($event->isChildEvent()) {
+      $event = $event->getParentEvent();
+    }
+
+    // Try to load the instance. If it already exists, we're all done and
+    // can just return it.
+    $instance = id(new PhabricatorCalendarEventQuery())
+      ->setViewer($viewer)
+      ->withInstanceSequencePairs(
+        array(
+          array($event->getPHID(), $sequence),
+        ))
+      ->executeOne();
+    if ($instance) {
+      return $instance;
+    }
+
+    if (!$viewer->isLoggedIn()) {
+      throw new Exception(
+        pht(
+          'This event instance has not been created yet. Log in to create '.
+          'it.'));
+    }
+
+    $instance = $event->newStub($viewer, $sequence);
+
+    return $instance;
+  }
+
+  private function buildSubheaderView(PhabricatorCalendarEvent $event) {
+    $viewer = $this->getViewer();
+
+    $host_phid = $event->getHostPHID();
+
+    $handles = $viewer->loadHandles(array($host_phid));
+    $handle = $handles[$host_phid];
+
+    $host = $viewer->renderHandle($host_phid);
+    $host = phutil_tag('strong', array(), $host);
+
+    $image_uri = $handles[$host_phid]->getImageURI();
+    $image_href = $handles[$host_phid]->getURI();
+
+    $date = $event->renderEventDate($viewer, true);
+
+    $content = pht('Hosted by %s on %s.', $host, $date);
+
+    return id(new PHUIHeadThingView())
+      ->setImage($image_uri)
+      ->setImageHref($image_href)
+      ->setContent($content);
+  }
+
+
+  private function buildRSVPActions(PhabricatorCalendarEvent $event) {
+    $viewer = $this->getViewer();
+    $id = $event->getID();
+
+    $invite_status = $event->getUserInviteStatus($viewer->getPHID());
+    $status_invited = PhabricatorCalendarEventInvitee::STATUS_INVITED;
+    $is_invite_pending = ($invite_status == $status_invited);
+    if (!$is_invite_pending) {
+      return array();
+    }
+
+    $decline_button = id(new PHUIButtonView())
+      ->setTag('a')
+      ->setIcon('fa-times grey')
+      ->setHref($this->getApplicationURI("/event/decline/{$id}/"))
+      ->setWorkflow(true)
+      ->setText(pht('Decline'));
+
+    $accept_button = id(new PHUIButtonView())
+      ->setTag('a')
+      ->setIcon('fa-check green')
+      ->setHref($this->getApplicationURI("/event/accept/{$id}/"))
+      ->setWorkflow(true)
+      ->setText(pht('Accept'));
+
+    return array($decline_button, $accept_button);
+  }
+
 }

src/applications/calendar/editor/PhabricatorCalendarEventEditEngine.php

@@ -0,0 +1,256 @@
+<?php
+
+final class PhabricatorCalendarEventEditEngine
+  extends PhabricatorEditEngine {
+
+  const ENGINECONST = 'calendar.event';
+
+  public function getEngineName() {
+    return pht('Calendar Events');
+  }
+
+  public function getSummaryHeader() {
+    return pht('Configure Calendar Event Forms');
+  }
+
+  public function getSummaryText() {
+    return pht('Configure how users create and edit events.');
+  }
+
+  public function getEngineApplicationClass() {
+    return 'PhabricatorCalendarApplication';
+  }
+
+  protected function newEditableObject() {
+    return PhabricatorCalendarEvent::initializeNewCalendarEvent(
+      $this->getViewer());
+  }
+
+  protected function newObjectQuery() {
+    return new PhabricatorCalendarEventQuery();
+  }
+
+  protected function getObjectCreateTitleText($object) {
+    return pht('Create New Event');
+  }
+
+  protected function getObjectEditTitleText($object) {
+    return pht('Edit Event: %s', $object->getName());
+  }
+
+  protected function getObjectEditShortText($object) {
+    return $object->getMonogram();
+  }
+
+  protected function getObjectCreateShortText() {
+    return pht('Create Event');
+  }
+
+  protected function getObjectName() {
+    return pht('Event');
+  }
+
+  protected function getObjectViewURI($object) {
+    return $object->getURI();
+  }
+
+  protected function getEditorURI() {
+    return $this->getApplication()->getApplicationURI('event/edit/');
+  }
+
+  protected function buildCustomEditFields($object) {
+    $viewer = $this->getViewer();
+
+    if ($this->getIsCreate()) {
+      $invitee_phids = array($viewer->getPHID());
+    } else {
+      $invitee_phids = $object->getInviteePHIDsForEdit();
+    }
+
+    $frequency_options = array(
+      PhabricatorCalendarEvent::FREQUENCY_DAILY => pht('Daily'),
+      PhabricatorCalendarEvent::FREQUENCY_WEEKLY => pht('Weekly'),
+      PhabricatorCalendarEvent::FREQUENCY_MONTHLY => pht('Monthly'),
+      PhabricatorCalendarEvent::FREQUENCY_YEARLY => pht('Yearly'),
+    );
+
+    $fields = array(
+      id(new PhabricatorTextEditField())
+        ->setKey('name')
+        ->setLabel(pht('Name'))
+        ->setDescription(pht('Name of the event.'))
+        ->setIsRequired(true)
+        ->setTransactionType(
+          PhabricatorCalendarEventNameTransaction::TRANSACTIONTYPE)
+        ->setConduitDescription(pht('Rename the event.'))
+        ->setConduitTypeDescription(pht('New event name.'))
+        ->setValue($object->getName()),
+      id(new PhabricatorRemarkupEditField())
+        ->setKey('description')
+        ->setLabel(pht('Description'))
+        ->setDescription(pht('Description of the event.'))
+        ->setTransactionType(
+          PhabricatorCalendarEventDescriptionTransaction::TRANSACTIONTYPE)
+        ->setConduitDescription(pht('Update the event description.'))
+        ->setConduitTypeDescription(pht('New event description.'))
+        ->setValue($object->getDescription()),
+      id(new PhabricatorBoolEditField())
+        ->setKey('cancelled')
+        ->setOptions(pht('Active'), pht('Cancelled'))
+        ->setLabel(pht('Cancelled'))
+        ->setDescription(pht('Cancel the event.'))
+        ->setTransactionType(
+          PhabricatorCalendarEventCancelTransaction::TRANSACTIONTYPE)
+        ->setIsConduitOnly(true)
+        ->setConduitDescription(pht('Cancel or restore the event.'))
+        ->setConduitTypeDescription(pht('True to cancel the event.'))
+        ->setValue($object->getIsCancelled()),
+      id(new PhabricatorUsersEditField())
+        ->setKey('hostPHID')
+        ->setAliases(array('host'))
+        ->setLabel(pht('Host'))
+        ->setDescription(pht('Host of the event.'))
+        ->setTransactionType(
+          PhabricatorCalendarEventHostTransaction::TRANSACTIONTYPE)
+        ->setIsConduitOnly($this->getIsCreate())
+        ->setConduitDescription(pht('Change the host of the event.'))
+        ->setConduitTypeDescription(pht('New event host.'))
+        ->setSingleValue($object->getHostPHID()),
+      id(new PhabricatorDatasourceEditField())
+        ->setKey('inviteePHIDs')
+        ->setAliases(array('invite', 'invitee', 'invitees', 'inviteePHID'))
+        ->setLabel(pht('Invitees'))
+        ->setDatasource(new PhabricatorMetaMTAMailableDatasource())
+        ->setTransactionType(
+          PhabricatorCalendarEventInviteTransaction::TRANSACTIONTYPE)
+        ->setDescription(pht('Users invited to the event.'))
+        ->setConduitDescription(pht('Change invited users.'))
+        ->setConduitTypeDescription(pht('New event invitees.'))
+        ->setValue($invitee_phids)
+        ->setCommentActionLabel(pht('Change Invitees')),
+    );
+
+    if ($this->getIsCreate()) {
+      $fields[] = id(new PhabricatorBoolEditField())
+        ->setKey('isRecurring')
+        ->setLabel(pht('Recurring'))
+        ->setOptions(pht('One-Time Event'), pht('Recurring Event'))
+        ->setTransactionType(
+          PhabricatorCalendarEventRecurringTransaction::TRANSACTIONTYPE)
+        ->setDescription(pht('One time or recurring event.'))
+        ->setConduitDescription(pht('Make the event recurring.'))
+        ->setConduitTypeDescription(pht('Mark the event as a recurring event.'))
+        ->setValue($object->getIsRecurring());
+
+      $fields[] = id(new PhabricatorSelectEditField())
+        ->setKey('frequency')
+        ->setLabel(pht('Frequency'))
+        ->setOptions($frequency_options)
+        ->setTransactionType(
+          PhabricatorCalendarEventFrequencyTransaction::TRANSACTIONTYPE)
+        ->setDescription(pht('Recurring event frequency.'))
+        ->setConduitDescription(pht('Change the event frequency.'))
+        ->setConduitTypeDescription(pht('New event frequency.'))
+        ->setValue($object->getFrequencyRule());
+    }
+
+    if ($this->getIsCreate() || $object->getIsRecurring()) {
+      $fields[] = id(new PhabricatorEpochEditField())
+        ->setAllowNull(true)
+        ->setKey('until')
+        ->setLabel(pht('Repeat Until'))
+        ->setTransactionType(
+          PhabricatorCalendarEventUntilDateTransaction::TRANSACTIONTYPE)
+        ->setDescription(pht('Last instance of the event.'))
+        ->setConduitDescription(pht('Change when the event repeats until.'))
+        ->setConduitTypeDescription(pht('New final event time.'))
+        ->setValue($object->getRecurrenceEndDate());
+    }
+
+    $fields[] = id(new PhabricatorBoolEditField())
+        ->setKey('isAllDay')
+        ->setLabel(pht('All Day'))
+        ->setOptions(pht('Normal Event'), pht('All Day Event'))
+        ->setTransactionType(
+          PhabricatorCalendarEventAllDayTransaction::TRANSACTIONTYPE)
+        ->setDescription(pht('Marks this as an all day event.'))
+        ->setConduitDescription(pht('Make the event an all day event.'))
+        ->setConduitTypeDescription(pht('Mark the event as an all day event.'))
+        ->setValue($object->getIsAllDay());
+
+    $fields[] = id(new PhabricatorEpochEditField())
+        ->setKey('start')
+        ->setLabel(pht('Start'))
+        ->setTransactionType(
+          PhabricatorCalendarEventStartDateTransaction::TRANSACTIONTYPE)
+        ->setDescription(pht('Start time of the event.'))
+        ->setConduitDescription(pht('Change the start time of the event.'))
+        ->setConduitTypeDescription(pht('New event start time.'))
+        ->setValue($object->getViewerDateFrom());
+
+    $fields[] = id(new PhabricatorEpochEditField())
+        ->setKey('end')
+        ->setLabel(pht('End'))
+        ->setTransactionType(
+          PhabricatorCalendarEventEndDateTransaction::TRANSACTIONTYPE)
+        ->setDescription(pht('End time of the event.'))
+        ->setConduitDescription(pht('Change the end time of the event.'))
+        ->setConduitTypeDescription(pht('New event end time.'))
+        ->setValue($object->getViewerDateTo());
+
+    $fields[] = id(new PhabricatorIconSetEditField())
+        ->setKey('icon')
+        ->setLabel(pht('Icon'))
+        ->setIconSet(new PhabricatorCalendarIconSet())
+        ->setTransactionType(
+          PhabricatorCalendarEventIconTransaction::TRANSACTIONTYPE)
+        ->setDescription(pht('Event icon.'))
+        ->setConduitDescription(pht('Change the event icon.'))
+        ->setConduitTypeDescription(pht('New event icon.'))
+        ->setValue($object->getIcon());
+
+    return $fields;
+  }
+
+  protected function willBuildEditForm($object, array $fields) {
+    $all_day_field = idx($fields, 'isAllDay');
+    $start_field = idx($fields, 'start');
+    $end_field = idx($fields, 'end');
+
+    if ($all_day_field) {
+      $is_all_day = $all_day_field->getValueForTransaction();
+
+      $control_ids = array();
+      if ($start_field) {
+        $control_ids[] = $start_field->getControlID();
+      }
+      if ($end_field) {
+        $control_ids[] = $end_field->getControlID();
+      }
+
+      Javelin::initBehavior(
+        'event-all-day',
+        array(
+          'allDayID' => $all_day_field->getControlID(),
+          'controlIDs' => $control_ids,
+        ));
+
+    } else {
+      $is_all_day = $object->getIsAllDay();
+    }
+
+    if ($is_all_day) {
+      if ($start_field) {
+        $start_field->setHideTime(true);
+      }
+
+      if ($end_field) {
+        $end_field->setHideTime(true);
+      }
+    }
+
+
+
+    return $fields;
+  }
+}

src/applications/calendar/editor/PhabricatorCalendarEventEditor.php

@@ -11,24 +11,53 @@ final class PhabricatorCalendarEventEditor
     return pht('Calendar');
   }
 
+  protected function shouldApplyInitialEffects(
+    PhabricatorLiskDAO $object,
+    array $xactions) {
+    return true;
+  }
+
+  protected function applyInitialEffects(
+    PhabricatorLiskDAO $object,
+    array $xactions) {
+
+    $actor = $this->requireActor();
+    if ($object->getIsStub()) {
+      $this->materializeStub($object);
+    }
+  }
+
+  private function materializeStub(PhabricatorCalendarEvent $event) {
+    if (!$event->getIsStub()) {
+      throw new Exception(
+        pht('Can not materialize an event stub: this event is not a stub.'));
+    }
+
+    $actor = $this->getActor();
+    $event->copyFromParent($actor);
+    $event->setIsStub(0);
+
+    $invitees = $event->getParentEvent()->getInvitees();
+
+    $new_invitees = array();
+    foreach ($invitees as $invitee) {
+      $invitee = id(new PhabricatorCalendarEventInvitee())
+        ->setEventPHID($event->getPHID())
+        ->setInviteePHID($invitee->getInviteePHID())
+        ->setInviterPHID($invitee->getInviterPHID())
+        ->setStatus($invitee->getStatus())
+        ->save();
+
+      $new_invitees[] = $invitee;
+    }
+
+    $event->save();
+    $event->attachInvitees($new_invitees);
+  }
+
   public function getTransactionTypes() {
     $types = parent::getTransactionTypes();
 
-    $types[] = PhabricatorCalendarEventTransaction::TYPE_NAME;
-    $types[] = PhabricatorCalendarEventTransaction::TYPE_START_DATE;
-    $types[] = PhabricatorCalendarEventTransaction::TYPE_END_DATE;
-    $types[] = PhabricatorCalendarEventTransaction::TYPE_DESCRIPTION;
-    $types[] = PhabricatorCalendarEventTransaction::TYPE_CANCEL;
-    $types[] = PhabricatorCalendarEventTransaction::TYPE_INVITE;
-    $types[] = PhabricatorCalendarEventTransaction::TYPE_ALL_DAY;
-    $types[] = PhabricatorCalendarEventTransaction::TYPE_ICON;
-
-    $types[] = PhabricatorCalendarEventTransaction::TYPE_RECURRING;
-    $types[] = PhabricatorCalendarEventTransaction::TYPE_FREQUENCY;
-    $types[] = PhabricatorCalendarEventTransaction::TYPE_RECURRENCE_END_DATE;
-    $types[] = PhabricatorCalendarEventTransaction::TYPE_INSTANCE_OF_EVENT;
-    $types[] = PhabricatorCalendarEventTransaction::TYPE_SEQUENCE_INDEX;
-
     $types[] = PhabricatorTransactions::TYPE_COMMENT;
     $types[] = PhabricatorTransactions::TYPE_VIEW_POLICY;
     $types[] = PhabricatorTransactions::TYPE_EDIT_POLICY;
@@ -36,174 +65,28 @@ final class PhabricatorCalendarEventEditor
     return $types;
   }
 
-  protected function getCustomTransactionOldValue(
-    PhabricatorLiskDAO $object,
-    PhabricatorApplicationTransaction $xaction) {
-    switch ($xaction->getTransactionType()) {
-      case PhabricatorCalendarEventTransaction::TYPE_RECURRING:
-        return $object->getIsRecurring();
-      case PhabricatorCalendarEventTransaction::TYPE_FREQUENCY:
-        return $object->getRecurrenceFrequency();
-      case PhabricatorCalendarEventTransaction::TYPE_RECURRENCE_END_DATE:
-        return $object->getRecurrenceEndDate();
-      case PhabricatorCalendarEventTransaction::TYPE_INSTANCE_OF_EVENT:
-        return $object->getInstanceOfEventPHID();
-      case PhabricatorCalendarEventTransaction::TYPE_SEQUENCE_INDEX:
-        return $object->getSequenceIndex();
-      case PhabricatorCalendarEventTransaction::TYPE_NAME:
-        return $object->getName();
-      case PhabricatorCalendarEventTransaction::TYPE_START_DATE:
-        return $object->getDateFrom();
-      case PhabricatorCalendarEventTransaction::TYPE_END_DATE:
-        return $object->getDateTo();
-      case PhabricatorCalendarEventTransaction::TYPE_DESCRIPTION:
-        return $object->getDescription();
-      case PhabricatorCalendarEventTransaction::TYPE_CANCEL:
-        return $object->getIsCancelled();
-      case PhabricatorCalendarEventTransaction::TYPE_ALL_DAY:
-        return (int)$object->getIsAllDay();
-      case PhabricatorCalendarEventTransaction::TYPE_ICON:
-        return $object->getIcon();
-      case PhabricatorCalendarEventTransaction::TYPE_INVITE:
-        $map = $xaction->getNewValue();
-        $phids = array_keys($map);
-        $invitees = mpull($object->getInvitees(), null, 'getInviteePHID');
-
-        $old = array();
-        foreach ($phids as $phid) {
-          $invitee = idx($invitees, $phid);
-          if ($invitee) {
-            $old[$phid] = $invitee->getStatus();
-          } else {
-            $old[$phid] = PhabricatorCalendarEventInvitee::STATUS_UNINVITED;
-          }
-        }
-        return $old;
-    }
-
-    return parent::getCustomTransactionOldValue($object, $xaction);
-  }
-
-  protected function getCustomTransactionNewValue(
-    PhabricatorLiskDAO $object,
-    PhabricatorApplicationTransaction $xaction) {
-    switch ($xaction->getTransactionType()) {
-      case PhabricatorCalendarEventTransaction::TYPE_RECURRING:
-      case PhabricatorCalendarEventTransaction::TYPE_FREQUENCY:
-      case PhabricatorCalendarEventTransaction::TYPE_INSTANCE_OF_EVENT:
-      case PhabricatorCalendarEventTransaction::TYPE_SEQUENCE_INDEX:
-      case PhabricatorCalendarEventTransaction::TYPE_NAME:
-      case PhabricatorCalendarEventTransaction::TYPE_DESCRIPTION:
-      case PhabricatorCalendarEventTransaction::TYPE_CANCEL:
-      case PhabricatorCalendarEventTransaction::TYPE_INVITE:
-      case PhabricatorCalendarEventTransaction::TYPE_ICON:
-        return $xaction->getNewValue();
-      case PhabricatorCalendarEventTransaction::TYPE_ALL_DAY:
-        return (int)$xaction->getNewValue();
-      case PhabricatorCalendarEventTransaction::TYPE_RECURRENCE_END_DATE:
-      case PhabricatorCalendarEventTransaction::TYPE_START_DATE:
-      case PhabricatorCalendarEventTransaction::TYPE_END_DATE:
-        return $xaction->getNewValue()->getEpoch();
-    }
-
-    return parent::getCustomTransactionNewValue($object, $xaction);
-  }
-
-  protected function applyCustomInternalTransaction(
-    PhabricatorLiskDAO $object,
-    PhabricatorApplicationTransaction $xaction) {
-
-    switch ($xaction->getTransactionType()) {
-      case PhabricatorCalendarEventTransaction::TYPE_RECURRING:
-        return $object->setIsRecurring($xaction->getNewValue());
-      case PhabricatorCalendarEventTransaction::TYPE_FREQUENCY:
-        return $object->setRecurrenceFrequency($xaction->getNewValue());
-      case PhabricatorCalendarEventTransaction::TYPE_INSTANCE_OF_EVENT:
-        return $object->setInstanceOfEventPHID($xaction->getNewValue());
-      case PhabricatorCalendarEventTransaction::TYPE_SEQUENCE_INDEX:
-        return $object->setSequenceIndex($xaction->getNewValue());
-      case PhabricatorCalendarEventTransaction::TYPE_NAME:
-        $object->setName($xaction->getNewValue());
-        return;
-      case PhabricatorCalendarEventTransaction::TYPE_START_DATE:
-        $object->setDateFrom($xaction->getNewValue());
-        return;
-      case PhabricatorCalendarEventTransaction::TYPE_END_DATE:
-        $object->setDateTo($xaction->getNewValue());
-        return;
-      case PhabricatorCalendarEventTransaction::TYPE_RECURRENCE_END_DATE:
-        $object->setRecurrenceEndDate($xaction->getNewValue());
-        return;
-      case PhabricatorCalendarEventTransaction::TYPE_DESCRIPTION:
-        $object->setDescription($xaction->getNewValue());
-        return;
-      case PhabricatorCalendarEventTransaction::TYPE_CANCEL:
-        $object->setIsCancelled((int)$xaction->getNewValue());
-        return;
-      case PhabricatorCalendarEventTransaction::TYPE_ALL_DAY:
-        $object->setIsAllDay((int)$xaction->getNewValue());
-        return;
-      case PhabricatorCalendarEventTransaction::TYPE_ICON:
-        $object->setIcon($xaction->getNewValue());
-        return;
-      case PhabricatorCalendarEventTransaction::TYPE_INVITE:
-        return;
-    }
-
-    return parent::applyCustomInternalTransaction($object, $xaction);
-  }
-
-  protected function applyCustomExternalTransaction(
-    PhabricatorLiskDAO $object,
-    PhabricatorApplicationTransaction $xaction) {
-
-    switch ($xaction->getTransactionType()) {
-      case PhabricatorCalendarEventTransaction::TYPE_RECURRING:
-      case PhabricatorCalendarEventTransaction::TYPE_FREQUENCY:
-      case PhabricatorCalendarEventTransaction::TYPE_RECURRENCE_END_DATE:
-      case PhabricatorCalendarEventTransaction::TYPE_INSTANCE_OF_EVENT:
-      case PhabricatorCalendarEventTransaction::TYPE_SEQUENCE_INDEX:
-      case PhabricatorCalendarEventTransaction::TYPE_NAME:
-      case PhabricatorCalendarEventTransaction::TYPE_START_DATE:
-      case PhabricatorCalendarEventTransaction::TYPE_END_DATE:
-      case PhabricatorCalendarEventTransaction::TYPE_DESCRIPTION:
-      case PhabricatorCalendarEventTransaction::TYPE_CANCEL:
-      case PhabricatorCalendarEventTransaction::TYPE_ALL_DAY:
-      case PhabricatorCalendarEventTransaction::TYPE_ICON:
-        return;
-      case PhabricatorCalendarEventTransaction::TYPE_INVITE:
-        $map = $xaction->getNewValue();
-        $phids = array_keys($map);
-        $invitees = $object->getInvitees();
-        $invitees = mpull($invitees, null, 'getInviteePHID');
-
-        foreach ($phids as $phid) {
-          $invitee = idx($invitees, $phid);
-          if (!$invitee) {
-            $invitee = id(new PhabricatorCalendarEventInvitee())
-              ->setEventPHID($object->getPHID())
-              ->setInviteePHID($phid)
-              ->setInviterPHID($this->getActingAsPHID());
-            $invitees[] = $invitee;
-          }
-          $invitee->setStatus($map[$phid])
-            ->save();
-        }
-        $object->attachInvitees($invitees);
-        return;
-    }
-
-    return parent::applyCustomExternalTransaction($object, $xaction);
-  }
-
-  protected function didApplyInternalEffects(
+  protected function adjustObjectForPolicyChecks(
     PhabricatorLiskDAO $object,
     array $xactions) {
 
-    $object->removeViewerTimezone($this->requireActor());
-
-    return $xactions;
+    $copy = parent::adjustObjectForPolicyChecks($object, $xactions);
+    foreach ($xactions as $xaction) {
+      switch ($xaction->getTransactionType()) {
+        case PhabricatorCalendarEventHostTransaction::TRANSACTIONTYPE:
+          $copy->setHostPHID($xaction->getNewValue());
+          break;
+        case PhabricatorCalendarEventInviteTransaction::TRANSACTIONTYPE:
+          PhabricatorPolicyRule::passTransactionHintToRule(
+            $copy,
+            new PhabricatorCalendarEventInviteesPolicyRule(),
+            array_fuse($xaction->getNewValue()));
+          break;
       }
+    }
+
+    return $copy;
+  }
+
 
   protected function applyFinalEffects(
     PhabricatorLiskDAO $object,
@@ -216,22 +99,21 @@ final class PhabricatorCalendarEventEditor
     $invalidate_phids = array();
     foreach ($xactions as $xaction) {
       switch ($xaction->getTransactionType()) {
-        case PhabricatorCalendarEventTransaction::TYPE_ICON:
-          break;
-        case PhabricatorCalendarEventTransaction::TYPE_RECURRING:
-        case PhabricatorCalendarEventTransaction::TYPE_FREQUENCY:
-        case PhabricatorCalendarEventTransaction::TYPE_RECURRENCE_END_DATE:
-        case PhabricatorCalendarEventTransaction::TYPE_INSTANCE_OF_EVENT:
-        case PhabricatorCalendarEventTransaction::TYPE_SEQUENCE_INDEX:
-        case PhabricatorCalendarEventTransaction::TYPE_START_DATE:
-        case PhabricatorCalendarEventTransaction::TYPE_END_DATE:
-        case PhabricatorCalendarEventTransaction::TYPE_CANCEL:
-        case PhabricatorCalendarEventTransaction::TYPE_ALL_DAY:
+        case PhabricatorCalendarEventUntilDateTransaction::TRANSACTIONTYPE:
+        case PhabricatorCalendarEventStartDateTransaction::TRANSACTIONTYPE:
+        case PhabricatorCalendarEventEndDateTransaction::TRANSACTIONTYPE:
+        case PhabricatorCalendarEventCancelTransaction::TRANSACTIONTYPE:
+        case PhabricatorCalendarEventAllDayTransaction::TRANSACTIONTYPE:
           // For these kinds of changes, we need to invalidate the availabilty
           // caches for all attendees.
           $invalidate_all = true;
           break;
-        case PhabricatorCalendarEventTransaction::TYPE_INVITE:
+        case PhabricatorCalendarEventAcceptTransaction::TRANSACTIONTYPE:
+        case PhabricatorCalendarEventDeclineTransaction::TRANSACTIONTYPE:
+          $acting_phid = $this->getActingAsPHID();
+          $invalidate_phids[$acting_phid] = $acting_phid;
+          break;
+        case PhabricatorCalendarEventInviteTransaction::TRANSACTIONTYPE:
           foreach ($xaction->getNewValue() as $phid => $ignored) {
             $invalidate_phids[$phid] = $phid;
           }
@@ -247,6 +129,8 @@ final class PhabricatorCalendarEventEditor
     }
 
     if ($phids) {
+      $object->applyViewerTimezone($this->getActor());
+
       $user = new PhabricatorUser();
       $conn_w = $user->establishConnection('w');
       queryfx(
@@ -265,14 +149,15 @@ final class PhabricatorCalendarEventEditor
   protected function validateAllTransactions(
     PhabricatorLiskDAO $object,
     array $xactions) {
+
     $start_date_xaction =
-      PhabricatorCalendarEventTransaction::TYPE_START_DATE;
+      PhabricatorCalendarEventStartDateTransaction::TRANSACTIONTYPE;
     $end_date_xaction =
-      PhabricatorCalendarEventTransaction::TYPE_END_DATE;
+      PhabricatorCalendarEventEndDateTransaction::TRANSACTIONTYPE;
     $is_recurrence_xaction =
-      PhabricatorCalendarEventTransaction::TYPE_RECURRING;
+      PhabricatorCalendarEventRecurringTransaction::TRANSACTIONTYPE;
     $recurrence_end_xaction =
-      PhabricatorCalendarEventTransaction::TYPE_RECURRENCE_END_DATE;
+      PhabricatorCalendarEventUntilDateTransaction::TRANSACTIONTYPE;
 
     $start_date = $object->getDateFrom();
     $end_date = $object->getDateTo();
@@ -287,25 +172,23 @@ final class PhabricatorCalendarEventEditor
       } else if ($xaction->getTransactionType() == $end_date_xaction) {
         $end_date = $xaction->getNewValue()->getEpoch();
       } else if ($xaction->getTransactionType() == $recurrence_end_xaction) {
-        $recurrence_end = $xaction->getNewValue();
+        $recurrence_end = $xaction->getNewValue()->getEpoch();
       } else if ($xaction->getTransactionType() == $is_recurrence_xaction) {
         $is_recurring = $xaction->getNewValue();
       }
     }
+
     if ($start_date > $end_date) {
-      $type = PhabricatorCalendarEventTransaction::TYPE_END_DATE;
       $errors[] = new PhabricatorApplicationTransactionValidationError(
-        $type,
+        $end_date_xaction,
         pht('Invalid'),
         pht('End date must be after start date.'),
         null);
     }
 
     if ($recurrence_end && !$is_recurring) {
-      $type =
-        PhabricatorCalendarEventTransaction::TYPE_RECURRENCE_END_DATE;
       $errors[] = new PhabricatorApplicationTransactionValidationError(
-        $type,
+        $recurrence_end_xaction,
         pht('Invalid'),
         pht('Event must be recurring to have a recurrence end date.').
         null);
@@ -314,49 +197,6 @@ final class PhabricatorCalendarEventEditor
     return $errors;
   }
 
-  protected function validateTransaction(
-    PhabricatorLiskDAO $object,
-    $type,
-    array $xactions) {
-
-    $errors = parent::validateTransaction($object, $type, $xactions);
-
-    switch ($type) {
-      case PhabricatorCalendarEventTransaction::TYPE_NAME:
-        $missing = $this->validateIsEmptyTextField(
-          $object->getName(),
-          $xactions);
-
-        if ($missing) {
-          $error = new PhabricatorApplicationTransactionValidationError(
-            $type,
-            pht('Required'),
-            pht('Event name is required.'),
-            nonempty(last($xactions), null));
-
-          $error->setIsMissingFieldError(true);
-          $errors[] = $error;
-        }
-        break;
-      case PhabricatorCalendarEventTransaction::TYPE_RECURRENCE_END_DATE:
-      case PhabricatorCalendarEventTransaction::TYPE_START_DATE:
-      case PhabricatorCalendarEventTransaction::TYPE_END_DATE:
-        foreach ($xactions as $xaction) {
-          $date_value = $xaction->getNewValue();
-          if (!$date_value->isValid()) {
-            $errors[] = new PhabricatorApplicationTransactionValidationError(
-              $type,
-              pht('Invalid'),
-              pht('Invalid date.'),
-              $xaction);
-          }
-        }
-        break;
-    }
-
-    return $errors;
-  }
-
   protected function shouldPublishFeedStory(
     PhabricatorLiskDAO $object,
     array $xactions) {
@@ -380,8 +220,8 @@ final class PhabricatorCalendarEventEditor
   protected function getMailTo(PhabricatorLiskDAO $object) {
     $phids = array();
 
-    if ($object->getUserPHID()) {
-      $phids[] = $object->getUserPHID();
+    if ($object->getHostPHID()) {
+      $phids[] = $object->getHostPHID();
     }
     $phids[] = $this->getActingAsPHID();
 

src/applications/calendar/phid/PhabricatorCalendarEventPHIDType.php

@@ -32,16 +32,16 @@ final class PhabricatorCalendarEventPHIDType extends PhabricatorPHIDType {
     foreach ($handles as $phid => $handle) {
       $event = $objects[$phid];
 
-      $id = $event->getID();
+      $monogram = $event->getMonogram();
       $name = $event->getName();
-      $is_cancelled = $event->getIsCancelled();
+      $uri = $event->getURI();
 
       $handle
         ->setName($name)
-        ->setFullName(pht('E%d: %s', $id, $name))
-        ->setURI('/E'.$id);
+        ->setFullName(pht('%s: %s', $monogram, $name))
+        ->setURI($uri);
 
-      if ($is_cancelled) {
+      if ($event->isCancelledEvent()) {
         $handle->setStatus(PhabricatorObjectHandle::STATUS_CLOSED);
       }
     }

src/applications/calendar/policyrule/PhabricatorCalendarEventHostPolicyRule.php

@@ -0,0 +1,43 @@
+<?php
+
+final class PhabricatorCalendarEventHostPolicyRule
+  extends PhabricatorPolicyRule {
+
+  public function getObjectPolicyKey() {
+    return 'calendar.event.host';
+  }
+
+  public function getObjectPolicyName() {
+    return pht('Event Host');
+  }
+
+  public function getPolicyExplanation() {
+    return pht('The host of this event can take this action.');
+  }
+
+  public function getRuleDescription() {
+    return pht('event host');
+  }
+
+  public function canApplyToObject(PhabricatorPolicyInterface $object) {
+    return ($object instanceof PhabricatorCalendarEvent);
+  }
+
+  public function applyRule(
+    PhabricatorUser $viewer,
+    $value,
+    PhabricatorPolicyInterface $object) {
+
+    $viewer_phid = $viewer->getPHID();
+    if (!$viewer_phid) {
+      return false;
+    }
+
+    return ($object->getHostPHID() == $viewer_phid);
+  }
+
+  public function getValueControlType() {
+    return self::CONTROL_TYPE_NONE;
+  }
+
+}

src/applications/calendar/policyrule/PhabricatorCalendarEventInviteesPolicyRule.php

@@ -0,0 +1,104 @@
+<?php
+
+final class PhabricatorCalendarEventInviteesPolicyRule
+  extends PhabricatorPolicyRule {
+
+  private $invited = array();
+  private $sourcePHIDs = array();
+
+  public function getObjectPolicyKey() {
+    return 'calendar.event.invitees';
+  }
+
+  public function getObjectPolicyName() {
+    return pht('Event Invitees');
+  }
+
+  public function getPolicyExplanation() {
+    return pht('Users invited to this event can take this action.');
+  }
+
+  public function getRuleDescription() {
+    return pht('event invitees');
+  }
+
+  public function canApplyToObject(PhabricatorPolicyInterface $object) {
+    return ($object instanceof PhabricatorCalendarEvent);
+  }
+
+  public function willApplyRules(
+    PhabricatorUser $viewer,
+    array $values,
+    array $objects) {
+
+    $viewer_phid = $viewer->getPHID();
+    if (!$viewer_phid) {
+      return;
+    }
+
+    if (empty($this->invited[$viewer_phid])) {
+      $this->invited[$viewer_phid] = array();
+    }
+
+    if (!isset($this->sourcePHIDs[$viewer_phid])) {
+      $source_phids = PhabricatorEdgeQuery::loadDestinationPHIDs(
+        $viewer_phid,
+        PhabricatorProjectMemberOfProjectEdgeType::EDGECONST);
+      $source_phids[] = $viewer_phid;
+      $this->sourcePHIDs[$viewer_phid] = $source_phids;
+    }
+
+    foreach ($objects as $key => $object) {
+      $cache = $this->getTransactionHint($object);
+      if ($cache === null) {
+        // We don't have a hint for this object, so we'll deal with it below.
+        continue;
+      }
+
+      // We have a hint, so use that as the source of truth.
+      unset($objects[$key]);
+
+      foreach ($this->sourcePHIDs[$viewer_phid] as $source_phid) {
+        if (isset($cache[$source_phid])) {
+          $this->invited[$viewer_phid][$object->getPHID()] = true;
+          break;
+        }
+      }
+    }
+
+    $phids = mpull($objects, 'getPHID');
+    if (!$phids) {
+      return;
+    }
+
+    $invited = id(new PhabricatorCalendarEventInvitee())->loadAllWhere(
+      'eventPHID IN (%Ls)
+        AND inviteePHID IN (%Ls)
+        AND status != %s',
+      $phids,
+      $this->sourcePHIDs[$viewer_phid],
+      PhabricatorCalendarEventInvitee::STATUS_UNINVITED);
+    $invited = mpull($invited, 'getEventPHID');
+
+    $this->invited[$viewer_phid] += array_fill_keys($invited, true);
+  }
+
+  public function applyRule(
+    PhabricatorUser $viewer,
+    $value,
+    PhabricatorPolicyInterface $object) {
+
+    $viewer_phid = $viewer->getPHID();
+    if (!$viewer_phid) {
+      return false;
+    }
+
+    $invited = idx($this->invited, $viewer_phid);
+    return isset($invited[$object->getPHID()]);
+  }
+
+  public function getValueControlType() {
+    return self::CONTROL_TYPE_NONE;
+  }
+
+}

src/applications/calendar/query/PhabricatorCalendarEventQuery.php

@@ -8,10 +8,11 @@ final class PhabricatorCalendarEventQuery
   private $rangeBegin;
   private $rangeEnd;
   private $inviteePHIDs;
-  private $creatorPHIDs;
+  private $hostPHIDs;
   private $isCancelled;
   private $eventsWithNoParent;
   private $instanceSequencePairs;
+  private $isStub;
 
   private $generateGhosts = false;
 
@@ -45,8 +46,8 @@ final class PhabricatorCalendarEventQuery
     return $this;
   }
 
-  public function withCreatorPHIDs(array $phids) {
-    $this->creatorPHIDs = $phids;
+  public function withHostPHIDs(array $phids) {
+    $this->hostPHIDs = $phids;
     return $this;
   }
 
@@ -55,6 +56,11 @@ final class PhabricatorCalendarEventQuery
     return $this;
   }
 
+  public function withIsStub($is_stub) {
+    $this->isStub = $is_stub;
+    return $this;
+  }
+
   public function withEventsWithNoParent($events_with_no_parent) {
     $this->eventsWithNoParent = $events_with_no_parent;
     return $this;
@@ -69,6 +75,15 @@ final class PhabricatorCalendarEventQuery
     return array('start', 'id');
   }
 
+  public function getBuiltinOrders() {
+    return array(
+      'start' => array(
+        'vector' => array('start', 'id'),
+        'name' => pht('Event Start'),
+      ),
+    ) + parent::getBuiltinOrders();
+  }
+
   public function getOrderableColumns() {
     return array(
       'start' => array(
@@ -84,11 +99,22 @@ final class PhabricatorCalendarEventQuery
   protected function getPagingValueMap($cursor, array $keys) {
     $event = $this->loadCursorObject($cursor);
     return array(
-      'start' => $event->getDateFrom(),
+      'start' => $event->getViewerDateFrom(),
       'id' => $event->getID(),
     );
   }
 
+  protected function shouldLimitResults() {
+    // When generating ghosts, we can't rely on database ordering because
+    // MySQL can't predict the ghost start times. We'll just load all matching
+    // events, then generate results from there.
+    if ($this->generateGhosts) {
+      return false;
+    }
+
+    return true;
+  }
+
   protected function loadPage() {
     $events = $this->loadStandardPage($this->newResultObject());
 
@@ -101,7 +127,6 @@ final class PhabricatorCalendarEventQuery
       return $events;
     }
 
-    $enforced_end = null;
     $raw_limit = $this->getRawResultLimit();
 
     if (!$raw_limit && !$this->rangeEnd) {
@@ -115,7 +140,6 @@ final class PhabricatorCalendarEventQuery
     foreach ($events as $key => $event) {
       $sequence_start = 0;
       $sequence_end = null;
-      $duration = $event->getDateTo() - $event->getDateFrom();
       $end = null;
 
       $instance_of = $event->getInstanceOfEventPHID();
@@ -126,14 +150,36 @@ final class PhabricatorCalendarEventQuery
           continue;
         }
       }
+    }
+
+    // Pull out all of the parents first. We may discard them as we begin
+    // generating ghost events, but we still want to process all of them.
+    $parents = array();
+    foreach ($events as $key => $event) {
+      if ($event->isParentEvent()) {
+        $parents[$key] = $event;
+      }
+    }
+
+    // Now that we've picked out all the parent events, we can immediately
+    // discard anything outside of the time window.
+    $events = $this->getEventsInRange($events);
+
+    $enforced_end = null;
+    foreach ($parents as $key => $event) {
+      $sequence_start = 0;
+      $sequence_end = null;
+      $start = null;
+
+      $duration = $event->getDuration();
 
-      if ($event->getIsRecurring() && $instance_of == null) {
       $frequency = $event->getFrequencyUnit();
       $modify_key = '+1 '.$frequency;
 
-        if ($this->rangeBegin && $this->rangeBegin > $event->getDateFrom()) {
+      if (($this->rangeBegin !== null) &&
+          ($this->rangeBegin > $event->getViewerDateFrom())) {
         $max_date = $this->rangeBegin - $duration;
-          $date = $event->getDateFrom();
+        $date = $event->getViewerDateFrom();
         $datetime = PhabricatorTime::getDateTimeFromEpoch($date, $viewer);
 
         while ($date < $max_date) {
@@ -145,28 +191,28 @@ final class PhabricatorCalendarEventQuery
 
         $start = $this->rangeBegin;
       } else {
-          $start = $event->getDateFrom() - $duration;
+        $start = $event->getViewerDateFrom() - $duration;
       }
 
       $date = $start;
       $datetime = PhabricatorTime::getDateTimeFromEpoch($date, $viewer);
 
-        if (($this->rangeEnd && $event->getRecurrenceEndDate()) &&
-          $this->rangeEnd < $event->getRecurrenceEndDate()) {
-          $end = $this->rangeEnd;
-        } else if ($event->getRecurrenceEndDate()) {
-          $end = $event->getRecurrenceEndDate();
-        } else if ($this->rangeEnd) {
-          $end = $this->rangeEnd;
-        } else if ($enforced_end) {
-          if ($end) {
-            $end = min($end, $enforced_end);
-          } else {
-            $end = $enforced_end;
-          }
+      // Select the minimum end time we need to generate events until.
+      $end_times = array();
+      if ($this->rangeEnd) {
+        $end_times[] = $this->rangeEnd;
       }
 
-        if ($end) {
+      if ($event->getRecurrenceEndDate()) {
+        $end_times[] = $event->getRecurrenceEndDate();
+      }
+
+      if ($enforced_end) {
+        $end_times[] = $enforced_end;
+      }
+
+      if ($end_times) {
+        $end = min($end_times);
         $sequence_end = $sequence_start;
         while ($date < $end) {
           $sequence_end++;
@@ -181,9 +227,8 @@ final class PhabricatorCalendarEventQuery
       }
 
       $sequence_start = max(1, $sequence_start);
-
       for ($index = $sequence_start; $index < $sequence_end; $index++) {
-          $events[] = $event->generateNthGhost($index, $viewer);
+        $events[] = $event->newGhost($viewer, $index);
       }
 
       // NOTE: We're slicing results every time because this makes it cheaper
@@ -192,57 +237,85 @@ final class PhabricatorCalendarEventQuery
       // because they couldn't possibly ever appear in the result set.
 
       if ($raw_limit) {
-          if (count($events) >= $raw_limit) {
-            $events = msort($events, 'getDateFrom');
+        if (count($events) > $raw_limit) {
+          $events = msort($events, 'getViewerDateFrom');
           $events = array_slice($events, 0, $raw_limit, true);
-            $enforced_end = last($events)->getDateFrom();
-          }
+          $enforced_end = last($events)->getViewerDateFrom();
         }
       }
     }
 
-    $map = array();
-    $instance_sequence_pairs = array();
+    // Now that we're done generating ghost events, we're going to remove any
+    // ghosts that we have concrete events for (or which we can load the
+    // concrete events for). These concrete events are generated when users
+    // edit a ghost, and replace the ghost events.
 
-    foreach ($events as $key => $event) {
-      if ($event->getIsGhostEvent()) {
-        $index = $event->getSequenceIndex();
-        $instance_sequence_pairs[] = array($event->getPHID(), $index);
-        $map[$event->getPHID()][$index] = $key;
-      }
-    }
-
-    if (count($instance_sequence_pairs) > 0) {
-      $sub_query = id(new PhabricatorCalendarEventQuery())
-        ->setViewer($viewer)
-        ->setParentQuery($this)
-        ->withInstanceSequencePairs($instance_sequence_pairs)
-        ->execute();
-
-      foreach ($sub_query as $edited_ghost) {
-        $indexes = idx($map, $edited_ghost->getInstanceOfEventPHID());
-        $key = idx($indexes, $edited_ghost->getSequenceIndex());
-        $events[$key] = $edited_ghost;
-      }
-
-      $id_map = array();
-      foreach ($events as $key => $event) {
+    // First, generate a map of all concrete <parentPHID, sequence> events we
+    // already loaded. We don't need to load these again.
+    $have_pairs = array();
+    foreach ($events as $event) {
       if ($event->getIsGhostEvent()) {
         continue;
       }
-        if (isset($id_map[$event->getID()])) {
+
+      $parent_phid = $event->getInstanceOfEventPHID();
+      $sequence = $event->getSequenceIndex();
+
+      $have_pairs[$parent_phid][$sequence] = true;
+    }
+
+    // Now, generate a map of all <parentPHID, sequence> events we generated
+    // ghosts for. We need to try to load these if we don't already have them.
+    $map = array();
+    $parent_pairs = array();
+    foreach ($events as $key => $event) {
+      if (!$event->getIsGhostEvent()) {
+        continue;
+      }
+
+      $parent_phid = $event->getInstanceOfEventPHID();
+      $sequence = $event->getSequenceIndex();
+
+      // We already loaded the concrete version of this event, so we can just
+      // throw out the ghost and move on.
+      if (isset($have_pairs[$parent_phid][$sequence])) {
         unset($events[$key]);
-        } else {
-          $id_map[$event->getID()] = true;
-        }
+        continue;
+      }
+
+      // We didn't load the concrete version of this event, so we need to
+      // try to load it if it exists.
+      $parent_pairs[] = array($parent_phid, $sequence);
+      $map[$parent_phid][$sequence] = $key;
+    }
+
+    if ($parent_pairs) {
+      $instances = id(new self())
+        ->setViewer($viewer)
+        ->setParentQuery($this)
+        ->withInstanceSequencePairs($parent_pairs)
+        ->execute();
+
+      foreach ($instances as $instance) {
+        $parent_phid = $instance->getInstanceOfEventPHID();
+        $sequence = $instance->getSequenceIndex();
+
+        $indexes = idx($map, $parent_phid);
+        $key = idx($indexes, $sequence);
+
+        // Replace the ghost with the corresponding concrete event.
+        $events[$key] = $instance;
       }
     }
 
+    $events = msort($events, 'getViewerDateFrom');
+
     return $events;
   }
 
   protected function buildJoinClauseParts(AphrontDatabaseConnection $conn_r) {
     $parts = parent::buildJoinClauseParts($conn_r);
+
     if ($this->inviteePHIDs !== null) {
       $parts[] = qsprintf(
         $conn_r,
@@ -251,6 +324,7 @@ final class PhabricatorCalendarEventQuery
         id(new PhabricatorCalendarEventInvitee())->getTableName(),
         PhabricatorCalendarEventInvitee::STATUS_UNINVITED);
     }
+
     return $parts;
   }
 
@@ -271,18 +345,22 @@ final class PhabricatorCalendarEventQuery
         $this->phids);
     }
 
+    // NOTE: The date ranges we query for are larger than the requested ranges
+    // because we need to catch all-day events. We'll refine this range later
+    // after adjusting the visible range of events we load.
+
     if ($this->rangeBegin) {
       $where[] = qsprintf(
         $conn,
         'event.dateTo >= %d OR event.isRecurring = 1',
-        $this->rangeBegin);
+        $this->rangeBegin - phutil_units('16 hours in seconds'));
     }
 
     if ($this->rangeEnd) {
       $where[] = qsprintf(
         $conn,
         'event.dateFrom <= %d',
-        $this->rangeEnd);
+        $this->rangeEnd + phutil_units('16 hours in seconds'));
     }
 
     if ($this->inviteePHIDs !== null) {
@@ -292,11 +370,11 @@ final class PhabricatorCalendarEventQuery
         $this->inviteePHIDs);
     }
 
-    if ($this->creatorPHIDs) {
+    if ($this->hostPHIDs) {
       $where[] = qsprintf(
         $conn,
-        'event.userPHID IN (%Ls)',
-        $this->creatorPHIDs);
+        'event.hostPHID IN (%Ls)',
+        $this->hostPHIDs);
     }
 
     if ($this->isCancelled !== null) {
@@ -329,6 +407,13 @@ final class PhabricatorCalendarEventQuery
         implode(' OR ', $sql));
     }
 
+    if ($this->isStub !== null) {
+      $where[] = qsprintf(
+        $conn,
+        'event.isStub = %d',
+        (int)$this->isStub);
+    }
+
     return $where;
   }
 
@@ -353,23 +438,11 @@ final class PhabricatorCalendarEventQuery
 
 
   protected function willFilterPage(array $events) {
-    $range_start = $this->rangeBegin;
-    $range_end = $this->rangeEnd;
     $instance_of_event_phids = array();
     $recurring_events = array();
     $viewer = $this->getViewer();
 
-    foreach ($events as $key => $event) {
-      $event_start = $event->getDateFrom();
-      $event_end = $event->getDateTo();
-
-      if ($range_start && $event_end < $range_start) {
-        unset($events[$key]);
-      }
-      if ($range_end && $event_start > $range_end) {
-        unset($events[$key]);
-      }
-    }
+    $events = $this->getEventsInRange($events);
 
     $phids = array();
 
@@ -427,7 +500,27 @@ final class PhabricatorCalendarEventQuery
       }
     }
 
-    $events = msort($events, 'getDateFrom');
+    $events = msort($events, 'getViewerDateFrom');
+
+    return $events;
+  }
+
+  private function getEventsInRange(array $events) {
+    $range_start = $this->rangeBegin;
+    $range_end = $this->rangeEnd;
+
+    foreach ($events as $key => $event) {
+      $event_start = $event->getViewerDateFrom();
+      $event_end = $event->getViewerDateTo();
+
+      if ($range_start && $event_end < $range_start) {
+        unset($events[$key]);
+      }
+
+      if ($range_end && $event_start > $range_end) {
+        unset($events[$key]);
+      }
+    }
 
     return $events;
   }

src/applications/calendar/query/PhabricatorCalendarEventSearchEngine.php

@@ -26,8 +26,9 @@ final class PhabricatorCalendarEventSearchEngine
   protected function buildCustomSearchFields() {
     return array(
       id(new PhabricatorSearchDatasourceField())
-        ->setLabel(pht('Created By'))
-        ->setKey('creatorPHIDs')
+        ->setLabel(pht('Hosts'))
+        ->setKey('hostPHIDs')
+        ->setAliases(array('host', 'hostPHID', 'hosts'))
         ->setDatasource(new PhabricatorPeopleUserFunctionDatasource()),
       id(new PhabricatorSearchDatasourceField())
         ->setLabel(pht('Invited'))
@@ -78,8 +79,8 @@ final class PhabricatorCalendarEventSearchEngine
     $query = $this->newQuery();
     $viewer = $this->requireViewer();
 
-    if ($map['creatorPHIDs']) {
-      $query->withCreatorPHIDs($map['creatorPHIDs']);
+    if ($map['hostPHIDs']) {
+      $query->withHostPHIDs($map['hostPHIDs']);
     }
 
     if ($map['invitedPHIDs']) {
@@ -113,7 +114,15 @@ final class PhabricatorCalendarEventSearchEngine
         break;
     }
 
-    return $query->setGenerateGhosts(true);
+    // Generate ghosts (and ignore stub events) if we aren't querying for
+    // specific events.
+    if (!$map['ids'] && !$map['phids']) {
+      $query
+        ->withIsStub(false)
+        ->setGenerateGhosts(true);
+    }
+
+    return $query;
   }
 
   private function getQueryDateRange(
@@ -184,10 +193,11 @@ final class PhabricatorCalendarEventSearchEngine
     }
 
     if ($upcoming) {
+      $now = PhabricatorTime::getNow();
       if ($min_range) {
-        $min_range = max(time(), $min_range);
+        $min_range = max($now, $min_range);
       } else {
-        $min_range = time();
+        $min_range = $now;
       }
     }
 
@@ -239,25 +249,15 @@ final class PhabricatorCalendarEventSearchEngine
     return parent::buildSavedQueryFromBuiltin($query_key);
   }
 
-  protected function getRequiredHandlePHIDsForResultList(
-    array $objects,
-    PhabricatorSavedQuery $query) {
-    $phids = array();
-    foreach ($objects as $event) {
-      $phids[$event->getUserPHID()] = 1;
-    }
-    return array_keys($phids);
-  }
-
   protected function renderResultList(
     array $events,
     PhabricatorSavedQuery $query,
     array $handles) {
 
     if ($this->isMonthView($query)) {
-      return $this->buildCalendarView($events, $query, $handles);
+      return $this->buildCalendarMonthView($events, $query);
     } else if ($this->isDayView($query)) {
-      return $this->buildCalendarDayView($events, $query, $handles);
+      return $this->buildCalendarDayView($events, $query);
     }
 
     assert_instances_of($events, 'PhabricatorCalendarEvent');
@@ -265,51 +265,37 @@ final class PhabricatorCalendarEventSearchEngine
     $list = new PHUIObjectItemListView();
 
     foreach ($events as $event) {
-      $event_date_info = $this->getEventDateLabel($event);
-      $creator_handle = $handles[$event->getUserPHID()];
-      $attendees = array();
-
-      foreach ($event->getInvitees() as $invitee) {
-        $status_attending = PhabricatorCalendarEventInvitee::STATUS_ATTENDING;
-        if ($invitee->getStatus() === $status_attending) {
-          $attendees[] = $invitee->getInviteePHID();
-        }
-      }
-
       if ($event->getIsGhostEvent()) {
-        $title_text = $event->getMonogram()
-          .' ('
-          .$event->getSequenceIndex()
-          .'): '
-          .$event->getName();
+        $monogram = $event->getParentEvent()->getMonogram();
+        $index = $event->getSequenceIndex();
+        $monogram = "{$monogram}/{$index}";
       } else {
-        $title_text = $event->getMonogram().': '.$event->getName();
+        $monogram = $event->getMonogram();
       }
 
       $item = id(new PHUIObjectItemView())
         ->setUser($viewer)
         ->setObject($event)
-        ->setHeader($title_text)
-        ->setHref($event->getURI())
-        ->addAttribute($event_date_info);
+        ->setObjectName($monogram)
+        ->setHeader($event->getName())
+        ->setHref($event->getURI());
 
-      if ($attendees) {
-        $attending = pht(
-          'Attending: %s',
-          $viewer->renderHandleList($attendees)
-            ->setAsInline(1)
-            ->render());
+      $item->addAttribute($event->renderEventDate($viewer, false));
 
-        $item->addAttribute($attending);
+      if ($event->isCancelledEvent()) {
+        $item->setDisabled(true);
       }
 
-      if (strlen($event->getDuration()) > 0) {
-        $duration = pht(
-          'Duration: %s',
-          $event->getDuration());
+      $status_icon = $event->getDisplayIcon($viewer);
+      $status_color = $event->getDisplayIconColor($viewer);
+      $status_label = $event->getDisplayIconLabel($viewer);
 
-        $item->addIcon('none', $duration);
-      }
+      $item->setStatusIcon("{$status_icon} {$status_color}", $status_label);
+
+      $host = pht(
+        'Hosted by %s',
+        $viewer->renderHandle($event->getHostPHID()));
+      $item->addByline($host);
 
       $list->addItem($item);
     }
@@ -321,13 +307,13 @@ final class PhabricatorCalendarEventSearchEngine
     return $result;
   }
 
-  private function buildCalendarView(
-    array $statuses,
-    PhabricatorSavedQuery $query,
-    array $handles) {
+  private function buildCalendarMonthView(
+    array $events,
+    PhabricatorSavedQuery $query) {
+    assert_instances_of($events, 'PhabricatorCalendarEvent');
 
     $viewer = $this->requireViewer();
-    $now = time();
+    $now = PhabricatorTime::getNow();
 
     list($start_year, $start_month) =
       $this->getDisplayYearAndMonthAndDay(
@@ -356,40 +342,45 @@ final class PhabricatorCalendarEventSearchEngine
 
     $month_view->setUser($viewer);
 
-    $phids = mpull($statuses, 'getUserPHID');
+    foreach ($events as $event) {
+      $epoch_min = $event->getViewerDateFrom();
+      $epoch_max = $event->getViewerDateTo();
 
-    foreach ($statuses as $status) {
-      $viewer_is_invited = $status->getIsUserInvited($viewer->getPHID());
+      $event_view = id(new AphrontCalendarEventView())
+        ->setHostPHID($event->getHostPHID())
+        ->setEpochRange($epoch_min, $epoch_max)
+        ->setIsCancelled($event->isCancelledEvent())
+        ->setName($event->getName())
+        ->setURI($event->getURI())
+        ->setIsAllDay($event->getIsAllDay())
+        ->setIcon($event->getDisplayIcon($viewer))
+        ->setIconColor($event->getDisplayIconColor($viewer));
 
-      $event = new AphrontCalendarEventView();
-      $event->setEpochRange($status->getDateFrom(), $status->getDateTo());
-      $event->setIsAllDay($status->getIsAllDay());
-      $event->setIcon($status->getIcon());
-
-      $name_text = $handles[$status->getUserPHID()]->getName();
-      $status_text = $status->getName();
-      $event->setUserPHID($status->getUserPHID());
-      $event->setDescription(pht('%s (%s)', $name_text, $status_text));
-      $event->setName($status_text);
-      $event->setURI($status->getURI());
-      $event->setViewerIsInvited($viewer_is_invited);
-      $month_view->addEvent($event);
+      $month_view->addEvent($event_view);
     }
 
     $month_view->setBrowseURI(
       $this->getURI('query/'.$query->getQueryKey().'/'));
 
-    // TODO redesign-2015 : Move buttons out of PHUICalendarView?
-    $result = new PhabricatorApplicationSearchResultView();
-    $result->setContent($month_view);
+    $from = $this->getQueryDateFrom($query)->getDateTime();
 
-    return $result;
+    $crumbs = array();
+    $crumbs[] = id(new PHUICrumbView())
+      ->setName($from->format('F Y'));
+
+    $header = id(new PHUIHeaderView())
+      ->setHeader($from->format('F Y'));
+
+    return id(new PhabricatorApplicationSearchResultView())
+      ->setCrumbs($crumbs)
+      ->setHeader($header)
+      ->setContent($month_view)
+      ->setCollapsed(true);
   }
 
   private function buildCalendarDayView(
-    array $statuses,
-    PhabricatorSavedQuery $query,
-    array $handles) {
+    array $events,
+    PhabricatorSavedQuery $query) {
 
     $viewer = $this->requireViewer();
 
@@ -400,8 +391,8 @@ final class PhabricatorCalendarEventSearchEngine
         $query->getParameter('display'));
 
     $day_view = id(new PHUICalendarDayView(
-      $this->getQueryDateFrom($query)->getEpoch(),
-      $this->getQueryDateTo($query)->getEpoch(),
+      $this->getQueryDateFrom($query),
+      $this->getQueryDateTo($query),
       $start_year,
       $start_month,
       $start_day))
@@ -409,40 +400,56 @@ final class PhabricatorCalendarEventSearchEngine
 
     $day_view->setUser($viewer);
 
-    $phids = mpull($statuses, 'getUserPHID');
-
-    foreach ($statuses as $status) {
-      if ($status->getIsCancelled()) {
-        continue;
-      }
-
-      $viewer_is_invited = $status->getIsUserInvited($viewer->getPHID());
+    $phids = mpull($events, 'getHostPHID');
 
+    foreach ($events as $event) {
       $can_edit = PhabricatorPolicyFilter::hasCapability(
         $viewer,
-        $status,
+        $event,
         PhabricatorPolicyCapability::CAN_EDIT);
 
-      $event = new AphrontCalendarEventView();
-      $event->setCanEdit($can_edit);
-      $event->setEventID($status->getID());
-      $event->setEpochRange($status->getDateFrom(), $status->getDateTo());
-      $event->setIsAllDay($status->getIsAllDay());
-      $event->setIcon($status->getIcon());
-      $event->setViewerIsInvited($viewer_is_invited);
+      $epoch_min = $event->getViewerDateFrom();
+      $epoch_max = $event->getViewerDateTo();
 
-      $event->setName($status->getName());
-      $event->setURI($status->getURI());
-      $day_view->addEvent($event);
+      $status_icon = $event->getDisplayIcon($viewer);
+      $status_color = $event->getDisplayIconColor($viewer);
+
+      $event_view = id(new AphrontCalendarEventView())
+        ->setCanEdit($can_edit)
+        ->setEventID($event->getID())
+        ->setEpochRange($epoch_min, $epoch_max)
+        ->setIsAllDay($event->getIsAllDay())
+        ->setIcon($status_icon)
+        ->setIconColor($status_color)
+        ->setName($event->getName())
+        ->setURI($event->getURI())
+        ->setIsCancelled($event->isCancelledEvent());
+
+      $day_view->addEvent($event_view);
     }
 
-    $day_view->setBrowseURI(
-      $this->getURI('query/'.$query->getQueryKey().'/'));
+    $browse_uri = $this->getURI('query/'.$query->getQueryKey().'/');
+    $day_view->setBrowseURI($browse_uri);
 
-    $result = new PhabricatorApplicationSearchResultView();
-    $result->setContent($day_view);
+    $from = $this->getQueryDateFrom($query)->getDateTime();
+    $month_uri = $browse_uri.$from->format('Y/m/');
 
-    return $result;
+    $crumbs = array(
+      id(new PHUICrumbView())
+        ->setName($from->format('F Y'))
+        ->setHref($month_uri),
+      id(new PHUICrumbView())
+        ->setName($from->format('D jS')),
+    );
+
+    $header = id(new PHUIHeaderView())
+      ->setHeader($from->format('D, F jS'));
+
+    return id(new PhabricatorApplicationSearchResultView())
+      ->setCrumbs($crumbs)
+      ->setHeader($header)
+      ->setContent($day_view)
+      ->setCollapsed(true);
   }
 
   private function getDisplayYearAndMonthAndDay(
@@ -486,6 +493,20 @@ final class PhabricatorCalendarEventSearchEngine
   }
 
   private function getQueryDateFrom(PhabricatorSavedQuery $saved) {
+    if ($this->calendarYear && $this->calendarMonth) {
+      $viewer = $this->requireViewer();
+
+      $start_year = $this->calendarYear;
+      $start_month = $this->calendarMonth;
+      $start_day = $this->calendarDay ? $this->calendarDay : 1;
+
+      return AphrontFormDateControlValue::newFromDictionary(
+        $viewer,
+        array(
+          'd' => "{$start_year}-{$start_month}-{$start_day}",
+        ));
+    }
+
     return $this->getQueryDate($saved, 'rangeStart');
   }
 
@@ -541,40 +562,4 @@ final class PhabricatorCalendarEventSearchEngine
     return false;
   }
 
-  private function getEventDateLabel($event) {
-    $viewer = $this->requireViewer();
-
-    $from_datetime = PhabricatorTime::getDateTimeFromEpoch(
-      $event->getDateFrom(),
-      $viewer);
-    $to_datetime = PhabricatorTime::getDateTimeFromEpoch(
-      $event->getDateTo(),
-      $viewer);
-
-    $from_date_formatted = $from_datetime->format('Y m d');
-    $to_date_formatted = $to_datetime->format('Y m d');
-
-    if ($event->getIsAllDay()) {
-      if ($from_date_formatted == $to_date_formatted) {
-        return pht(
-          '%s, All Day',
-          phabricator_date($event->getDateFrom(), $viewer));
-      } else {
-        return pht(
-          '%s - %s, All Day',
-          phabricator_date($event->getDateFrom(), $viewer),
-          phabricator_date($event->getDateTo(), $viewer));
-      }
-    } else if ($from_date_formatted == $to_date_formatted) {
-      return pht(
-        '%s - %s',
-        phabricator_datetime($event->getDateFrom(), $viewer),
-        phabricator_time($event->getDateTo(), $viewer));
-    } else {
-      return pht(
-        '%s - %s',
-        phabricator_datetime($event->getDateFrom(), $viewer),
-        phabricator_datetime($event->getDateTo(), $viewer));
-    }
-  }
 }

src/applications/calendar/search/PhabricatorCalendarEventFulltextEngine.php

@@ -17,13 +17,13 @@ final class PhabricatorCalendarEventFulltextEngine
 
     $document->addRelationship(
       PhabricatorSearchRelationship::RELATIONSHIP_AUTHOR,
-      $event->getUserPHID(),
+      $event->getHostPHID(),
       PhabricatorPeopleUserPHIDType::TYPECONST,
       $event->getDateCreated());
 
     $document->addRelationship(
       PhabricatorSearchRelationship::RELATIONSHIP_OWNER,
-      $event->getUserPHID(),
+      $event->getHostPHID(),
       PhabricatorPeopleUserPHIDType::TYPECONST,
       $event->getDateCreated());
 

src/applications/calendar/storage/PhabricatorCalendarEvent.php

@@ -1,7 +1,8 @@
 <?php
 
 final class PhabricatorCalendarEvent extends PhabricatorCalendarDAO
-  implements PhabricatorPolicyInterface,
+  implements
+    PhabricatorPolicyInterface,
     PhabricatorProjectInterface,
     PhabricatorMarkupInterface,
     PhabricatorApplicationTransactionInterface,
@@ -11,17 +12,21 @@ final class PhabricatorCalendarEvent extends PhabricatorCalendarDAO
     PhabricatorMentionableInterface,
     PhabricatorFlaggableInterface,
     PhabricatorSpacesInterface,
-  PhabricatorFulltextInterface {
+    PhabricatorFulltextInterface,
+    PhabricatorConduitResultInterface {
 
   protected $name;
-  protected $userPHID;
+  protected $hostPHID;
   protected $dateFrom;
   protected $dateTo;
+  protected $allDayDateFrom;
+  protected $allDayDateTo;
   protected $description;
   protected $isCancelled;
   protected $isAllDay;
   protected $icon;
   protected $mailKey;
+  protected $isStub;
 
   protected $isRecurring = 0;
   protected $recurrenceFrequency = array();
@@ -36,11 +41,11 @@ final class PhabricatorCalendarEvent extends PhabricatorCalendarDAO
 
   protected $spacePHID;
 
-  const DEFAULT_ICON = 'fa-calendar';
-
   private $parentEvent = self::ATTACHABLE;
   private $invitees = self::ATTACHABLE;
-  private $appliedViewer;
+
+  private $viewerDateFrom;
+  private $viewerDateTo;
 
   // Frequency Constants
   const FREQUENCY_DAILY = 'daily';
@@ -48,109 +53,225 @@ final class PhabricatorCalendarEvent extends PhabricatorCalendarDAO
   const FREQUENCY_MONTHLY = 'monthly';
   const FREQUENCY_YEARLY = 'yearly';
 
-  public static function initializeNewCalendarEvent(
-    PhabricatorUser $actor,
-    $mode) {
+  public static function initializeNewCalendarEvent(PhabricatorUser $actor) {
     $app = id(new PhabricatorApplicationQuery())
       ->setViewer($actor)
       ->withClasses(array('PhabricatorCalendarApplication'))
       ->executeOne();
 
-    $view_policy = null;
-    $is_recurring = 0;
+    $view_default = PhabricatorCalendarEventDefaultViewCapability::CAPABILITY;
+    $edit_default = PhabricatorCalendarEventDefaultEditCapability::CAPABILITY;
+    $view_policy = $app->getPolicy($view_default);
+    $edit_policy = $app->getPolicy($edit_default);
 
-    if ($mode == 'public') {
-      $view_policy = PhabricatorPolicies::getMostOpenPolicy();
-    }
+    $now = PhabricatorTime::getNow();
 
-    if ($mode == 'recurring') {
-      $is_recurring = true;
-    }
+    $start = new DateTime('@'.$now);
+    $start->setTimeZone($actor->getTimeZone());
+
+    $start->setTime($start->format('H'), 0, 0);
+    $start->modify('+1 hour');
+    $end = id(clone $start)->modify('+1 hour');
+
+    $epoch_min = $start->format('U');
+    $epoch_max = $end->format('U');
+
+    $now_date = new DateTime('@'.$now);
+    $now_min = id(clone $now_date)->setTime(0, 0)->format('U');
+    $now_max = id(clone $now_date)->setTime(23, 59)->format('U');
+
+    $default_icon = 'fa-calendar';
 
     return id(new PhabricatorCalendarEvent())
-      ->setUserPHID($actor->getPHID())
+      ->setHostPHID($actor->getPHID())
       ->setIsCancelled(0)
       ->setIsAllDay(0)
-      ->setIsRecurring($is_recurring)
-      ->setIcon(self::DEFAULT_ICON)
+      ->setIsStub(0)
+      ->setIsRecurring(0)
+      ->setRecurrenceFrequency(
+        array(
+          'rule' => self::FREQUENCY_WEEKLY,
+        ))
+      ->setIcon($default_icon)
       ->setViewPolicy($view_policy)
-      ->setEditPolicy($actor->getPHID())
+      ->setEditPolicy($edit_policy)
       ->setSpacePHID($actor->getDefaultSpacePHID())
       ->attachInvitees(array())
+      ->setDateFrom($epoch_min)
+      ->setDateTo($epoch_max)
+      ->setAllDayDateFrom($now_min)
+      ->setAllDayDateTo($now_max)
       ->applyViewerTimezone($actor);
   }
 
+  private function newChild(PhabricatorUser $actor, $sequence) {
+    if (!$this->isParentEvent()) {
+      throw new Exception(
+        pht(
+          'Unable to generate a new child event for an event which is not '.
+          'a recurring parent event!'));
+    }
+
+    $child = id(new self())
+      ->setIsCancelled(0)
+      ->setIsStub(0)
+      ->setInstanceOfEventPHID($this->getPHID())
+      ->setSequenceIndex($sequence)
+      ->setIsRecurring(true)
+      ->setRecurrenceFrequency($this->getRecurrenceFrequency())
+      ->attachParentEvent($this);
+
+    return $child->copyFromParent($actor);
+  }
+
+  protected function readField($field) {
+    static $inherit = array(
+      'hostPHID' => true,
+      'isAllDay' => true,
+      'icon' => true,
+      'spacePHID' => true,
+      'viewPolicy' => true,
+      'editPolicy' => true,
+      'name' => true,
+      'description' => true,
+    );
+
+    // Read these fields from the parent event instead of this event. For
+    // example, we want any changes to the parent event's name to
+    if (isset($inherit[$field])) {
+      if ($this->getIsStub()) {
+        // TODO: This should be unconditional, but the execution order of
+        // CalendarEventQuery and applyViewerTimezone() are currently odd.
+        if ($this->parentEvent !== self::ATTACHABLE) {
+          return $this->getParentEvent()->readField($field);
+        }
+      }
+    }
+
+    return parent::readField($field);
+  }
+
+
+  public function copyFromParent(PhabricatorUser $actor) {
+    if (!$this->isChildEvent()) {
+      throw new Exception(
+        pht(
+          'Unable to copy from parent event: this is not a child event.'));
+    }
+
+    $parent = $this->getParentEvent();
+
+    $this
+      ->setHostPHID($parent->getHostPHID())
+      ->setIsAllDay($parent->getIsAllDay())
+      ->setIcon($parent->getIcon())
+      ->setSpacePHID($parent->getSpacePHID())
+      ->setViewPolicy($parent->getViewPolicy())
+      ->setEditPolicy($parent->getEditPolicy())
+      ->setName($parent->getName())
+      ->setDescription($parent->getDescription());
+
+    $frequency = $parent->getFrequencyUnit();
+    $modify_key = '+'.$this->getSequenceIndex().' '.$frequency;
+
+    $date = $parent->getDateFrom();
+    $date_time = PhabricatorTime::getDateTimeFromEpoch($date, $actor);
+    $date_time->modify($modify_key);
+    $date = $date_time->format('U');
+
+    $duration = $this->getDuration();
+
+    $utc = new DateTimeZone('UTC');
+
+    $allday_from = $parent->getAllDayDateFrom();
+    $allday_date = new DateTime('@'.$allday_from, $utc);
+    $allday_date->setTimeZone($utc);
+    $allday_date->modify($modify_key);
+
+    $allday_min = $allday_date->format('U');
+    $allday_duration = ($parent->getAllDayDateTo() - $allday_from);
+
+    $this
+      ->setDateFrom($date)
+      ->setDateTo($date + $duration)
+      ->setAllDayDateFrom($allday_min)
+      ->setAllDayDateTo($allday_min + $allday_duration);
+
+    return $this;
+  }
+
+  public function newStub(PhabricatorUser $actor, $sequence) {
+    $stub = $this->newChild($actor, $sequence);
+
+    $stub->setIsStub(1);
+
+    $unguarded = AphrontWriteGuard::beginScopedUnguardedWrites();
+      $stub->save();
+    unset($unguarded);
+
+    $stub->applyViewerTimezone($actor);
+
+    return $stub;
+  }
+
+  public function newGhost(PhabricatorUser $actor, $sequence) {
+    $ghost = $this->newChild($actor, $sequence);
+
+    $ghost
+      ->setIsGhostEvent(true)
+      ->makeEphemeral();
+
+    $ghost->applyViewerTimezone($actor);
+
+    return $ghost;
+  }
+
+  public function getViewerDateFrom() {
+    if ($this->viewerDateFrom === null) {
+      throw new PhutilInvalidStateException('applyViewerTimezone');
+    }
+
+    return $this->viewerDateFrom;
+  }
+
+  public function getViewerDateTo() {
+    if ($this->viewerDateTo === null) {
+      throw new PhutilInvalidStateException('applyViewerTimezone');
+    }
+
+    return $this->viewerDateTo;
+  }
+
   public function applyViewerTimezone(PhabricatorUser $viewer) {
-    if ($this->appliedViewer) {
-      throw new Exception(pht('Viewer timezone is already applied!'));
-    }
-
-    $this->appliedViewer = $viewer;
-
     if (!$this->getIsAllDay()) {
-      return $this;
-    }
-
+      $this->viewerDateFrom = $this->getDateFrom();
+      $this->viewerDateTo = $this->getDateTo();
+    } else {
       $zone = $viewer->getTimeZone();
 
-
-    $this->setDateFrom(
-      $this->getDateEpochForTimeZone(
-        $this->getDateFrom(),
-        new DateTimeZone('Pacific/Kiritimati'),
+      $this->viewerDateFrom = $this->getDateEpochForTimezone(
+        $this->getAllDayDateFrom(),
+        new DateTimeZone('UTC'),
         'Y-m-d',
         null,
-        $zone));
+        $zone);
 
-    $this->setDateTo(
-      $this->getDateEpochForTimeZone(
-        $this->getDateTo(),
-        new DateTimeZone('Pacific/Midway'),
+      $this->viewerDateTo = $this->getDateEpochForTimezone(
+        $this->getAllDayDateTo(),
+        new DateTimeZone('UTC'),
         'Y-m-d 23:59:00',
-        '-1 day',
-        $zone));
-
-    return $this;
-  }
-
-
-  public function removeViewerTimezone(PhabricatorUser $viewer) {
-    if (!$this->appliedViewer) {
-      throw new Exception(pht('Viewer timezone is not applied!'));
-    }
-
-    if ($viewer->getPHID() != $this->appliedViewer->getPHID()) {
-      throw new Exception(pht('Removed viewer must match applied viewer!'));
-    }
-
-    $this->appliedViewer = null;
-
-    if (!$this->getIsAllDay()) {
-      return $this;
-    }
-
-    $zone = $viewer->getTimeZone();
-
-    $this->setDateFrom(
-      $this->getDateEpochForTimeZone(
-        $this->getDateFrom(),
-        $zone,
-        'Y-m-d',
         null,
-        new DateTimeZone('Pacific/Kiritimati')));
-
-    $this->setDateTo(
-      $this->getDateEpochForTimeZone(
-        $this->getDateTo(),
-        $zone,
-        'Y-m-d',
-        '+1 day',
-        new DateTimeZone('Pacific/Midway')));
+        $zone);
+    }
 
     return $this;
   }
 
-  private function getDateEpochForTimeZone(
+  public function getDuration() {
+    return $this->getDateTo() - $this->getDateFrom();
+  }
+
+  public function getDateEpochForTimezone(
     $epoch,
     $src_zone,
     $format,
@@ -169,12 +290,6 @@ final class PhabricatorCalendarEvent extends PhabricatorCalendarDAO
   }
 
   public function save() {
-    if ($this->appliedViewer) {
-      throw new Exception(
-        pht(
-          'Can not save event with viewer timezone still applied!'));
-    }
-
     if (!$this->mailKey) {
       $this->mailKey = Filesystem::readRandomCharacters(20);
     }
@@ -186,13 +301,13 @@ final class PhabricatorCalendarEvent extends PhabricatorCalendarDAO
    * Get the event start epoch for evaluating invitee availability.
    *
    * When assessing availability, we pretend events start earlier than they
-   * really. This allows us to mark users away for the entire duration of a
+   * really do. This allows us to mark users away for the entire duration of a
    * series of back-to-back meetings, even if they don't strictly overlap.
    *
    * @return int Event start date for availability caches.
    */
   public function getDateFromForCache() {
-    return ($this->getDateFrom() - phutil_units('15 minutes in seconds'));
+    return ($this->getViewerDateFrom() - phutil_units('15 minutes in seconds'));
   }
 
   protected function getConfiguration() {
@@ -202,6 +317,8 @@ final class PhabricatorCalendarEvent extends PhabricatorCalendarDAO
         'name' => 'text',
         'dateFrom' => 'epoch',
         'dateTo' => 'epoch',
+        'allDayDateFrom' => 'epoch',
+        'allDayDateTo' => 'epoch',
         'description' => 'text',
         'isCancelled' => 'bool',
         'isAllDay' => 'bool',
@@ -211,10 +328,11 @@ final class PhabricatorCalendarEvent extends PhabricatorCalendarDAO
         'recurrenceEndDate' => 'epoch?',
         'instanceOfEventPHID' => 'phid?',
         'sequenceIndex' => 'uint32?',
+        'isStub' => 'bool',
       ),
       self::CONFIG_KEY_SCHEMA => array(
-        'userPHID_dateFrom' => array(
-          'columns' => array('userPHID', 'dateTo'),
+        'key_date' => array(
+          'columns' => array('dateFrom', 'dateTo'),
         ),
         'key_instance' => array(
           'columns' => array('instanceOfEventPHID', 'sequenceIndex'),
@@ -245,6 +363,19 @@ final class PhabricatorCalendarEvent extends PhabricatorCalendarDAO
     return $this;
   }
 
+  public function getInviteePHIDsForEdit() {
+    $invitees = array();
+
+    foreach ($this->getInvitees() as $invitee) {
+      if ($invitee->isUninvited()) {
+        continue;
+      }
+      $invitees[] = $invitee->getInviteePHID();
+    }
+
+    return $invitees;
+  }
+
   public function getUserInviteStatus($phid) {
     $invitees = $this->getInvitees();
     $invitees = mpull($invitees, null, 'getInviteePHID');
@@ -285,40 +416,12 @@ final class PhabricatorCalendarEvent extends PhabricatorCalendarDAO
     return $this;
   }
 
-  public function generateNthGhost(
-    $sequence_index,
-    PhabricatorUser $actor) {
-
-    $frequency = $this->getFrequencyUnit();
-    $modify_key = '+'.$sequence_index.' '.$frequency;
-
-    $instance_of = ($this->getPHID()) ?
-      $this->getPHID() : $this->instanceOfEventPHID;
-
-    $date = $this->dateFrom;
-    $date_time = PhabricatorTime::getDateTimeFromEpoch($date, $actor);
-    $date_time->modify($modify_key);
-    $date = $date_time->format('U');
-
-    $duration = $this->dateTo - $this->dateFrom;
-
-    $edit_policy = PhabricatorPolicies::POLICY_NOONE;
-
-    $ghost_event = id(clone $this)
-      ->setIsGhostEvent(true)
-      ->setDateFrom($date)
-      ->setDateTo($date + $duration)
-      ->setIsRecurring(true)
-      ->setRecurrenceFrequency($this->recurrenceFrequency)
-      ->setInstanceOfEventPHID($instance_of)
-      ->setSequenceIndex($sequence_index)
-      ->setEditPolicy($edit_policy);
-
-    return $ghost_event;
+  public function getFrequencyRule() {
+    return idx($this->recurrenceFrequency, 'rule');
   }
 
   public function getFrequencyUnit() {
-    $frequency = idx($this->recurrenceFrequency, 'rule');
+    $frequency = $this->getFrequencyRule();
 
     switch ($frequency) {
       case 'daily':
@@ -335,11 +438,13 @@ final class PhabricatorCalendarEvent extends PhabricatorCalendarDAO
   }
 
   public function getURI() {
-    $uri = '/'.$this->getMonogram();
-    if ($this->isGhostEvent) {
-      $uri = $uri.'/'.$this->sequenceIndex;
+    if ($this->getIsGhostEvent()) {
+      $base = $this->getParentEvent()->getURI();
+      $sequence = $this->getSequenceIndex();
+      return "{$base}/{$sequence}/";
     }
-    return $uri;
+
+    return '/'.$this->getMonogram();
   }
 
   public function getParentEvent() {
@@ -351,63 +456,142 @@ final class PhabricatorCalendarEvent extends PhabricatorCalendarDAO
     return $this;
   }
 
-  public function getIsCancelled() {
-    $instance_of = $this->instanceOfEventPHID;
-    if ($instance_of != null && $this->getIsParentCancelled()) {
-      return true;
-    }
-    return $this->isCancelled;
+  public function isParentEvent() {
+    return ($this->getIsRecurring() && !$this->getInstanceOfEventPHID());
   }
 
-  public function getIsRecurrenceParent() {
-    if ($this->isRecurring && !$this->instanceOfEventPHID) {
+  public function isChildEvent() {
+    return ($this->instanceOfEventPHID !== null);
+  }
+
+  public function isCancelledEvent() {
+    if ($this->getIsCancelled()) {
       return true;
     }
+
+    if ($this->isChildEvent()) {
+      if ($this->getParentEvent()->getIsCancelled()) {
+        return true;
+      }
+    }
+
     return false;
   }
 
-  public function getIsRecurrenceException() {
-    if ($this->instanceOfEventPHID && !$this->isGhostEvent) {
-      return true;
-    }
-    return false;
+  public function renderEventDate(
+    PhabricatorUser $viewer,
+    $show_end) {
+
+    if ($show_end) {
+      $min_date = PhabricatorTime::getDateTimeFromEpoch(
+        $this->getViewerDateFrom(),
+        $viewer);
+
+      $max_date = PhabricatorTime::getDateTimeFromEpoch(
+        $this->getViewerDateTo(),
+        $viewer);
+
+      $min_day = $min_date->format('Y m d');
+      $max_day = $max_date->format('Y m d');
+
+      $show_end_date = ($min_day != $max_day);
+    } else {
+      $show_end_date = false;
     }
 
-  public function getIsParentCancelled() {
-    if ($this->instanceOfEventPHID == null) {
-      return false;
-    }
+    $min_epoch = $this->getViewerDateFrom();
+    $max_epoch = $this->getViewerDateTo();
 
-    $recurring_event = $this->getParentEvent();
-    if ($recurring_event->getIsCancelled()) {
-      return true;
-    }
-    return false;
-  }
-
-  public function getDuration() {
-    $seconds = $this->dateTo - $this->dateFrom;
-    $minutes = round($seconds / 60, 1);
-    $hours = round($minutes / 60, 3);
-    $days = round($hours / 24, 2);
-
-    $duration = '';
-
-    if ($days >= 1) {
+    if ($this->getIsAllDay()) {
+      if ($show_end_date) {
         return pht(
-        '%s day(s)',
-        round($days, 1));
-    } else if ($hours >= 1) {
+          '%s - %s, All Day',
+          phabricator_date($min_epoch, $viewer),
+          phabricator_date($max_epoch, $viewer));
+      } else {
         return pht(
-          '%s hour(s)',
-          round($hours, 1));
-    } else if ($minutes >= 1) {
+          '%s, All Day',
+          phabricator_date($min_epoch, $viewer));
+      }
+    } else if ($show_end_date) {
       return pht(
-          '%s minute(s)',
-          round($minutes, 0));
+        '%s - %s',
+        phabricator_datetime($min_epoch, $viewer),
+        phabricator_datetime($max_epoch, $viewer));
+    } else if ($show_end) {
+      return pht(
+        '%s - %s',
+        phabricator_datetime($min_epoch, $viewer),
+        phabricator_time($max_epoch, $viewer));
+    } else {
+      return pht(
+        '%s',
+        phabricator_datetime($min_epoch, $viewer));
     }
   }
 
+
+  public function getDisplayIcon(PhabricatorUser $viewer) {
+    if ($this->isCancelledEvent()) {
+      return 'fa-times';
+    }
+
+    if ($viewer->isLoggedIn()) {
+      $status = $this->getUserInviteStatus($viewer->getPHID());
+      switch ($status) {
+        case PhabricatorCalendarEventInvitee::STATUS_ATTENDING:
+          return 'fa-check-circle';
+        case PhabricatorCalendarEventInvitee::STATUS_INVITED:
+          return 'fa-user-plus';
+        case PhabricatorCalendarEventInvitee::STATUS_DECLINED:
+          return 'fa-times';
+      }
+    }
+
+    return $this->getIcon();
+  }
+
+  public function getDisplayIconColor(PhabricatorUser $viewer) {
+    if ($this->isCancelledEvent()) {
+      return 'red';
+    }
+
+    if ($viewer->isLoggedIn()) {
+      $status = $this->getUserInviteStatus($viewer->getPHID());
+      switch ($status) {
+        case PhabricatorCalendarEventInvitee::STATUS_ATTENDING:
+          return 'green';
+        case PhabricatorCalendarEventInvitee::STATUS_INVITED:
+          return 'green';
+        case PhabricatorCalendarEventInvitee::STATUS_DECLINED:
+          return 'grey';
+      }
+    }
+
+    return 'bluegrey';
+  }
+
+  public function getDisplayIconLabel(PhabricatorUser $viewer) {
+    if ($this->isCancelledEvent()) {
+      return pht('Cancelled');
+    }
+
+    if ($viewer->isLoggedIn()) {
+      $status = $this->getUserInviteStatus($viewer->getPHID());
+      switch ($status) {
+        case PhabricatorCalendarEventInvitee::STATUS_ATTENDING:
+          return pht('Attending');
+        case PhabricatorCalendarEventInvitee::STATUS_INVITED:
+          return pht('Invited');
+        case PhabricatorCalendarEventInvitee::STATUS_DECLINED:
+          return pht('Declined');
+      }
+    }
+
+    return null;
+  }
+
+
 /* -(  Markup Interface  )--------------------------------------------------- */
 
 
@@ -475,8 +659,8 @@ final class PhabricatorCalendarEvent extends PhabricatorCalendarDAO
   }
 
   public function hasAutomaticCapability($capability, PhabricatorUser $viewer) {
-    // The owner of a task can always view and edit it.
-    $user_phid = $this->getUserPHID();
+    // The host of an event can always view and edit it.
+    $user_phid = $this->getHostPHID();
     if ($user_phid) {
       $viewer_phid = $viewer->getPHID();
       if ($viewer_phid == $user_phid) {
@@ -497,11 +681,12 @@ final class PhabricatorCalendarEvent extends PhabricatorCalendarDAO
   }
 
   public function describeAutomaticCapability($capability) {
-    return pht('The owner of an event can always view and edit it,
-      and invitees can always view it, except if the event is an
-      instance of a recurring event.');
+    return pht(
+      'The host of an event can always view and edit it. Users who are '.
+      'invited to an event can always view it.');
   }
 
+
 /* -(  PhabricatorApplicationTransactionInterface  )------------------------- */
 
 
@@ -528,14 +713,14 @@ final class PhabricatorCalendarEvent extends PhabricatorCalendarDAO
 
 
   public function isAutomaticallySubscribed($phid) {
-    return ($phid == $this->getUserPHID());
+    return ($phid == $this->getHostPHID());
   }
 
 /* -(  PhabricatorTokenReceiverInterface  )---------------------------------- */
 
 
   public function getUsersToNotifyOfTokenGiven() {
-    return array($this->getUserPHID());
+    return array($this->getHostPHID());
   }
 
 /* -(  PhabricatorDestructibleInterface  )----------------------------------- */
@@ -564,4 +749,32 @@ final class PhabricatorCalendarEvent extends PhabricatorCalendarDAO
     return new PhabricatorCalendarEventFulltextEngine();
   }
 
+
+/* -(  PhabricatorConduitResultInterface  )---------------------------------- */
+
+
+  public function getFieldSpecificationsForConduit() {
+    return array(
+      id(new PhabricatorConduitSearchFieldSpecification())
+        ->setKey('name')
+        ->setType('string')
+        ->setDescription(pht('The name of the event.')),
+      id(new PhabricatorConduitSearchFieldSpecification())
+        ->setKey('description')
+        ->setType('string')
+        ->setDescription(pht('The event description.')),
+    );
+  }
+
+  public function getFieldValuesForConduit() {
+    return array(
+      'name' => $this->getName(),
+      'description' => $this->getDescription(),
+    );
+  }
+
+  public function getConduitSearchAttachments() {
+    return array();
+  }
+
 }

src/applications/calendar/storage/PhabricatorCalendarEventTransaction.php

@@ -1,23 +1,7 @@
 <?php
 
 final class PhabricatorCalendarEventTransaction
-  extends PhabricatorApplicationTransaction {
-
-  const TYPE_NAME = 'calendar.name';
-  const TYPE_START_DATE = 'calendar.startdate';
-  const TYPE_END_DATE = 'calendar.enddate';
-  const TYPE_DESCRIPTION = 'calendar.description';
-  const TYPE_CANCEL = 'calendar.cancel';
-  const TYPE_ALL_DAY = 'calendar.allday';
-  const TYPE_ICON = 'calendar.icon';
-  const TYPE_INVITE = 'calendar.invite';
-
-  const TYPE_RECURRING = 'calendar.recurring';
-  const TYPE_FREQUENCY = 'calendar.frequency';
-  const TYPE_RECURRENCE_END_DATE = 'calendar.recurrenceenddate';
-
-  const TYPE_INSTANCE_OF_EVENT = 'calendar.instanceofevent';
-  const TYPE_SEQUENCE_INDEX = 'calendar.sequenceindex';
+  extends PhabricatorModularTransaction {
 
   const MAILTAG_RESCHEDULE = 'calendar-reschedule';
   const MAILTAG_CONTENT = 'calendar-content';
@@ -35,534 +19,21 @@ final class PhabricatorCalendarEventTransaction
     return new PhabricatorCalendarEventTransactionComment();
   }
 
-  public function getRequiredHandlePHIDs() {
-    $phids = parent::getRequiredHandlePHIDs();
-
-    switch ($this->getTransactionType()) {
-      case self::TYPE_NAME:
-      case self::TYPE_START_DATE:
-      case self::TYPE_END_DATE:
-      case self::TYPE_DESCRIPTION:
-      case self::TYPE_CANCEL:
-      case self::TYPE_ALL_DAY:
-      case self::TYPE_RECURRING:
-      case self::TYPE_FREQUENCY:
-      case self::TYPE_RECURRENCE_END_DATE:
-      case self::TYPE_INSTANCE_OF_EVENT:
-      case self::TYPE_SEQUENCE_INDEX:
-        $phids[] = $this->getObjectPHID();
-        break;
-      case self::TYPE_INVITE:
-        $new = $this->getNewValue();
-        foreach ($new as $phid => $status) {
-          $phids[] = $phid;
-        }
-        break;
-    }
-
-    return $phids;
-  }
-
-  public function shouldHide() {
-    $old = $this->getOldValue();
-    switch ($this->getTransactionType()) {
-      case self::TYPE_START_DATE:
-      case self::TYPE_END_DATE:
-      case self::TYPE_DESCRIPTION:
-      case self::TYPE_CANCEL:
-      case self::TYPE_ALL_DAY:
-      case self::TYPE_INVITE:
-      case self::TYPE_RECURRING:
-      case self::TYPE_FREQUENCY:
-      case self::TYPE_RECURRENCE_END_DATE:
-      case self::TYPE_INSTANCE_OF_EVENT:
-      case self::TYPE_SEQUENCE_INDEX:
-        return ($old === null);
-    }
-    return parent::shouldHide();
-  }
-
-  public function getIcon() {
-    switch ($this->getTransactionType()) {
-      case self::TYPE_ICON:
-        return $this->getNewValue();
-      case self::TYPE_NAME:
-      case self::TYPE_START_DATE:
-      case self::TYPE_END_DATE:
-      case self::TYPE_DESCRIPTION:
-      case self::TYPE_ALL_DAY:
-      case self::TYPE_CANCEL:
-      case self::TYPE_RECURRING:
-      case self::TYPE_FREQUENCY:
-      case self::TYPE_RECURRENCE_END_DATE:
-      case self::TYPE_INSTANCE_OF_EVENT:
-      case self::TYPE_SEQUENCE_INDEX:
-        return 'fa-pencil';
-        break;
-      case self::TYPE_INVITE:
-        return 'fa-user-plus';
-        break;
-    }
-    return parent::getIcon();
-  }
-
-  public function getTitle() {
-    $author_phid = $this->getAuthorPHID();
-    $object_phid = $this->getObjectPHID();
-
-    $old = $this->getOldValue();
-    $new = $this->getNewValue();
-
-    $type = $this->getTransactionType();
-    switch ($type) {
-      case self::TYPE_NAME:
-        if ($old === null) {
-          return pht(
-            '%s created this event.',
-            $this->renderHandleLink($author_phid));
-        } else {
-          return pht(
-            '%s changed the name of this event from %s to %s.',
-            $this->renderHandleLink($author_phid),
-            $old,
-            $new);
-        }
-      case self::TYPE_START_DATE:
-        if ($old) {
-          return pht(
-            '%s edited the start date of this event.',
-            $this->renderHandleLink($author_phid));
-        }
-        break;
-      case self::TYPE_END_DATE:
-        if ($old) {
-          return pht(
-            '%s edited the end date of this event.',
-            $this->renderHandleLink($author_phid));
-        }
-        break;
-      case self::TYPE_DESCRIPTION:
-        return pht(
-          "%s updated the event's description.",
-          $this->renderHandleLink($author_phid));
-      case self::TYPE_ALL_DAY:
-        if ($new) {
-          return pht(
-            '%s made this an all day event.',
-            $this->renderHandleLink($author_phid));
-        } else {
-          return pht(
-            '%s converted this from an all day event.',
-            $this->renderHandleLink($author_phid));
-        }
-      case self::TYPE_ICON:
-        $set = new PhabricatorCalendarIconSet();
-        return pht(
-          '%s set this event\'s icon to %s.',
-          $this->renderHandleLink($author_phid),
-          $set->getIconLabel($new));
-        break;
-      case self::TYPE_CANCEL:
-        if ($new) {
-          return pht(
-            '%s cancelled this event.',
-            $this->renderHandleLink($author_phid));
-        } else {
-          return pht(
-            '%s reinstated this event.',
-            $this->renderHandleLink($author_phid));
-        }
-      case self::TYPE_INVITE:
-        $text = null;
-
-        if (count($old) === 1
-          && count($new) === 1
-          && isset($old[$author_phid])) {
-          // user joined/declined/accepted event themself
-          $old_status = $old[$author_phid];
-          $new_status = $new[$author_phid];
-
-          if ($old_status !== $new_status) {
-            switch ($new_status) {
-              case PhabricatorCalendarEventInvitee::STATUS_INVITED:
-                $text = pht(
-                  '%s has joined this event.',
-                  $this->renderHandleLink($author_phid));
-                  break;
-              case PhabricatorCalendarEventInvitee::STATUS_ATTENDING:
-                $text = pht(
-                  '%s is attending this event.',
-                  $this->renderHandleLink($author_phid));
-                  break;
-              case PhabricatorCalendarEventInvitee::STATUS_DECLINED:
-              case PhabricatorCalendarEventInvitee::STATUS_UNINVITED:
-                $text = pht(
-                  '%s has declined this event.',
-                  $this->renderHandleLink($author_phid));
-                  break;
-              default:
-                $text = pht(
-                  '%s has changed their status for this event.',
-                  $this->renderHandleLink($author_phid));
-                break;
-            }
-          }
-        } else {
-          // user changed status for many users
-          $self_joined = null;
-          $self_declined = null;
-          $added = array();
-          $uninvited = array();
-
-          foreach ($new as $phid => $status) {
-            if ($status == PhabricatorCalendarEventInvitee::STATUS_INVITED
-              || $status == PhabricatorCalendarEventInvitee::STATUS_ATTENDING) {
-              // added users
-              $added[] = $phid;
-            } else if (
-              $status == PhabricatorCalendarEventInvitee::STATUS_DECLINED
-              || $status == PhabricatorCalendarEventInvitee::STATUS_UNINVITED) {
-              $uninvited[] = $phid;
-            }
-          }
-
-          $count_added = count($added);
-          $count_uninvited = count($uninvited);
-          $added_text = null;
-          $uninvited_text = null;
-
-          if ($count_added > 0 && $count_uninvited == 0) {
-            $added_text = $this->renderHandleList($added);
-            $text = pht('%s invited %s.',
-              $this->renderHandleLink($author_phid),
-              $added_text);
-          } else if ($count_added > 0 && $count_uninvited > 0) {
-            $added_text = $this->renderHandleList($added);
-            $uninvited_text = $this->renderHandleList($uninvited);
-            $text = pht('%s invited %s and uninvited %s.',
-              $this->renderHandleLink($author_phid),
-              $added_text,
-              $uninvited_text);
-          } else if ($count_added == 0 && $count_uninvited > 0) {
-            $uninvited_text = $this->renderHandleList($uninvited);
-            $text = pht('%s uninvited %s.',
-              $this->renderHandleLink($author_phid),
-              $uninvited_text);
-          } else {
-            $text = pht('%s updated the invitee list.',
-              $this->renderHandleLink($author_phid));
-          }
-        }
-        return $text;
-      case self::TYPE_RECURRING:
-        $text = pht('%s made this event recurring.',
-          $this->renderHandleLink($author_phid));
-        return $text;
-      case self::TYPE_FREQUENCY:
-        $text = '';
-        switch ($new['rule']) {
-          case PhabricatorCalendarEvent::FREQUENCY_DAILY:
-            $text = pht('%s set this event to repeat daily.',
-              $this->renderHandleLink($author_phid));
-            break;
-          case PhabricatorCalendarEvent::FREQUENCY_WEEKLY:
-            $text = pht('%s set this event to repeat weekly.',
-              $this->renderHandleLink($author_phid));
-            break;
-          case PhabricatorCalendarEvent::FREQUENCY_MONTHLY:
-            $text = pht('%s set this event to repeat monthly.',
-              $this->renderHandleLink($author_phid));
-            break;
-          case PhabricatorCalendarEvent::FREQUENCY_YEARLY:
-            $text = pht('%s set this event to repeat yearly.',
-              $this->renderHandleLink($author_phid));
-            break;
-        }
-        return $text;
-      case self::TYPE_RECURRENCE_END_DATE:
-        $text = pht('%s has changed the recurrence end date of this event.',
-          $this->renderHandleLink($author_phid));
-        return $text;
-      case self::TYPE_INSTANCE_OF_EVENT:
-      case self::TYPE_SEQUENCE_INDEX:
-        return pht('Recurring event has been updated.');
-    }
-    return parent::getTitle();
-  }
-
-  public function getTitleForFeed() {
-    $author_phid = $this->getAuthorPHID();
-    $object_phid = $this->getObjectPHID();
-
-    $old = $this->getOldValue();
-    $new = $this->getNewValue();
-
-    $viewer = $this->getViewer();
-
-    $type = $this->getTransactionType();
-    switch ($type) {
-      case self::TYPE_NAME:
-        if ($old === null) {
-          return pht(
-            '%s created %s.',
-            $this->renderHandleLink($author_phid),
-            $this->renderHandleLink($object_phid));
-        } else {
-          return pht(
-            '%s changed the name of %s from %s to %s.',
-            $this->renderHandleLink($author_phid),
-            $this->renderHandleLink($object_phid),
-            $old,
-            $new);
-        }
-      case self::TYPE_START_DATE:
-        if ($old) {
-          $old = phabricator_datetime($old, $viewer);
-          $new = phabricator_datetime($new, $viewer);
-          return pht(
-            '%s changed the start date of %s from %s to %s.',
-            $this->renderHandleLink($author_phid),
-            $this->renderHandleLink($object_phid),
-            $old,
-            $new);
-        }
-        break;
-      case self::TYPE_END_DATE:
-        if ($old) {
-          $old = phabricator_datetime($old, $viewer);
-          $new = phabricator_datetime($new, $viewer);
-          return pht(
-            '%s edited the end date of %s from %s to %s.',
-            $this->renderHandleLink($author_phid),
-            $this->renderHandleLink($object_phid),
-            $old,
-            $new);
-        }
-        break;
-      case self::TYPE_DESCRIPTION:
-        return pht(
-          '%s updated the description of %s.',
-          $this->renderHandleLink($author_phid),
-          $this->renderHandleLink($object_phid));
-      case self::TYPE_ALL_DAY:
-        if ($new) {
-          return pht(
-            '%s made %s an all day event.',
-            $this->renderHandleLink($author_phid),
-            $this->renderHandleLink($object_phid));
-        } else {
-          return pht(
-            '%s converted %s from an all day event.',
-            $this->renderHandleLink($author_phid),
-            $this->renderHandleLink($object_phid));
-        }
-      case self::TYPE_ICON:
-        $set = new PhabricatorCalendarIconSet();
-        return pht(
-          '%s set the icon for %s to %s.',
-          $this->renderHandleLink($author_phid),
-          $this->renderHandleLink($object_phid),
-          $set->getIconLabel($new));
-      case self::TYPE_CANCEL:
-        if ($new) {
-          return pht(
-            '%s cancelled %s.',
-            $this->renderHandleLink($author_phid),
-            $this->renderHandleLink($object_phid));
-        } else {
-          return pht(
-            '%s reinstated %s.',
-            $this->renderHandleLink($author_phid),
-            $this->renderHandleLink($object_phid));
-        }
-      case self::TYPE_INVITE:
-        $text = null;
-
-        if (count($old) === 1
-          && count($new) === 1
-          && isset($old[$author_phid])) {
-          // user joined/declined/accepted event themself
-          $old_status = $old[$author_phid];
-          $new_status = $new[$author_phid];
-
-          if ($old_status !== $new_status) {
-            switch ($new_status) {
-              case PhabricatorCalendarEventInvitee::STATUS_INVITED:
-                $text = pht(
-                  '%s has joined %s.',
-                  $this->renderHandleLink($author_phid),
-                  $this->renderHandleLink($object_phid));
-                  break;
-              case PhabricatorCalendarEventInvitee::STATUS_ATTENDING:
-                $text = pht(
-                  '%s is attending %s.',
-                  $this->renderHandleLink($author_phid),
-                  $this->renderHandleLink($object_phid));
-                  break;
-              case PhabricatorCalendarEventInvitee::STATUS_DECLINED:
-              case PhabricatorCalendarEventInvitee::STATUS_UNINVITED:
-                $text = pht(
-                  '%s has declined %s.',
-                  $this->renderHandleLink($author_phid),
-                  $this->renderHandleLink($object_phid));
-                  break;
-              default:
-                $text = pht(
-                  '%s has changed their status of %s.',
-                  $this->renderHandleLink($author_phid),
-                  $this->renderHandleLink($object_phid));
-                break;
-            }
-          }
-        } else {
-          // user changed status for many users
-          $self_joined = null;
-          $self_declined = null;
-          $added = array();
-          $uninvited = array();
-
-          foreach ($new as $phid => $status) {
-            if ($status == PhabricatorCalendarEventInvitee::STATUS_INVITED
-              || $status == PhabricatorCalendarEventInvitee::STATUS_ATTENDING) {
-              // added users
-              $added[] = $phid;
-            } else if (
-              $status == PhabricatorCalendarEventInvitee::STATUS_DECLINED
-              || $status == PhabricatorCalendarEventInvitee::STATUS_UNINVITED) {
-              $uninvited[] = $phid;
-            }
-          }
-
-          $count_added = count($added);
-          $count_uninvited = count($uninvited);
-          $added_text = null;
-          $uninvited_text = null;
-
-          if ($count_added > 0 && $count_uninvited == 0) {
-            $added_text = $this->renderHandleList($added);
-            $text = pht('%s invited %s to %s.',
-              $this->renderHandleLink($author_phid),
-              $added_text,
-              $this->renderHandleLink($object_phid));
-          } else if ($count_added > 0 && $count_uninvited > 0) {
-            $added_text = $this->renderHandleList($added);
-            $uninvited_text = $this->renderHandleList($uninvited);
-            $text = pht('%s invited %s and uninvited %s to %s.',
-              $this->renderHandleLink($author_phid),
-              $added_text,
-              $uninvited_text,
-              $this->renderHandleLink($object_phid));
-          } else if ($count_added == 0 && $count_uninvited > 0) {
-            $uninvited_text = $this->renderHandleList($uninvited);
-            $text = pht('%s uninvited %s to %s.',
-              $this->renderHandleLink($author_phid),
-              $uninvited_text,
-              $this->renderHandleLink($object_phid));
-          } else {
-            $text = pht('%s updated the invitee list of %s.',
-              $this->renderHandleLink($author_phid),
-              $this->renderHandleLink($object_phid));
-          }
-        }
-        return $text;
-      case self::TYPE_RECURRING:
-        $text = pht('%s made %s a recurring event.',
-          $this->renderHandleLink($author_phid),
-          $this->renderHandleLink($object_phid));
-        return $text;
-      case self::TYPE_FREQUENCY:
-        $text = '';
-        switch ($new['rule']) {
-          case PhabricatorCalendarEvent::FREQUENCY_DAILY:
-            $text = pht('%s set %s to repeat daily.',
-              $this->renderHandleLink($author_phid),
-              $this->renderHandleLink($object_phid));
-            break;
-          case PhabricatorCalendarEvent::FREQUENCY_WEEKLY:
-            $text = pht('%s set %s to repeat weekly.',
-              $this->renderHandleLink($author_phid),
-              $this->renderHandleLink($object_phid));
-            break;
-          case PhabricatorCalendarEvent::FREQUENCY_MONTHLY:
-            $text = pht('%s set %s to repeat monthly.',
-              $this->renderHandleLink($author_phid),
-              $this->renderHandleLink($object_phid));
-            break;
-          case PhabricatorCalendarEvent::FREQUENCY_YEARLY:
-            $text = pht('%s set %s to repeat yearly.',
-              $this->renderHandleLink($author_phid),
-              $this->renderHandleLink($object_phid));
-            break;
-        }
-        return $text;
-      case self::TYPE_RECURRENCE_END_DATE:
-        $text = pht('%s set the recurrence end date of %s to %s.',
-          $this->renderHandleLink($author_phid),
-          $this->renderHandleLink($object_phid),
-          $new);
-        return $text;
-      case self::TYPE_INSTANCE_OF_EVENT:
-      case self::TYPE_SEQUENCE_INDEX:
-        return pht('Recurring event has been updated.');
-    }
-
-    return parent::getTitleForFeed();
-  }
-
-  public function getColor() {
-    $old = $this->getOldValue();
-    $new = $this->getNewValue();
-
-    switch ($this->getTransactionType()) {
-      case self::TYPE_NAME:
-      case self::TYPE_START_DATE:
-      case self::TYPE_END_DATE:
-      case self::TYPE_DESCRIPTION:
-      case self::TYPE_CANCEL:
-      case self::TYPE_INVITE:
-        return PhabricatorTransactions::COLOR_GREEN;
-    }
-
-    return parent::getColor();
-  }
-
-
-  public function hasChangeDetails() {
-    switch ($this->getTransactionType()) {
-      case self::TYPE_DESCRIPTION:
-        return ($this->getOldValue() !== null);
-    }
-
-    return parent::hasChangeDetails();
-  }
-
-  public function renderChangeDetails(PhabricatorUser $viewer) {
-    switch ($this->getTransactionType()) {
-      case self::TYPE_DESCRIPTION:
-        $old = $this->getOldValue();
-        $new = $this->getNewValue();
-
-        return $this->renderTextCorpusChangeDetails(
-          $viewer,
-          $old,
-          $new);
-    }
-
-    return parent::renderChangeDetails($viewer);
+  public function getBaseTransactionClass() {
+    return 'PhabricatorCalendarEventTransactionType';
   }
 
   public function getMailTags() {
     $tags = array();
     switch ($this->getTransactionType()) {
-      case self::TYPE_NAME:
-      case self::TYPE_DESCRIPTION:
-      case self::TYPE_INVITE:
-      case self::TYPE_ICON:
+      case PhabricatorCalendarEventNameTransaction::TRANSACTIONTYPE:
+      case PhabricatorCalendarEventDescriptionTransaction::TRANSACTIONTYPE:
+      case PhabricatorCalendarEventInviteTransaction::TRANSACTIONTYPE:
         $tags[] = self::MAILTAG_CONTENT;
         break;
-      case self::TYPE_START_DATE:
-      case self::TYPE_END_DATE:
-      case self::TYPE_CANCEL:
+      case PhabricatorCalendarEventStartDateTransaction::TRANSACTIONTYPE:
+      case PhabricatorCalendarEventEndDateTransaction::TRANSACTIONTYPE:
+      case PhabricatorCalendarEventCancelTransaction::TRANSACTIONTYPE:
         $tags[] = self::MAILTAG_RESCHEDULE;
         break;
     }

src/applications/calendar/view/AphrontCalendarEventView.php

@@ -2,7 +2,7 @@
 
 final class AphrontCalendarEventView extends AphrontView {
 
-  private $userPHID;
+  private $hostPHID;
   private $name;
   private $epochStart;
   private $epochEnd;
@@ -12,7 +12,27 @@ final class AphrontCalendarEventView extends AphrontView {
   private $uri;
   private $isAllDay;
   private $icon;
+  private $iconColor;
   private $canEdit;
+  private $isCancelled;
+
+  public function setIconColor($icon_color) {
+    $this->iconColor = $icon_color;
+    return $this;
+  }
+
+  public function getIconColor() {
+    return $this->iconColor;
+  }
+
+  public function setIsCancelled($is_cancelled) {
+    $this->isCancelled = $is_cancelled;
+    return $this;
+  }
+
+  public function getIsCancelled() {
+    return $this->isCancelled;
+  }
 
   public function setURI($uri) {
     $this->uri = $uri;
@@ -39,13 +59,13 @@ final class AphrontCalendarEventView extends AphrontView {
     return $this->viewerIsInvited;
   }
 
-  public function setUserPHID($user_phid) {
-    $this->userPHID = $user_phid;
+  public function setHostPHID($host_phid) {
+    $this->hostPHID = $host_phid;
     return $this;
   }
 
-  public function getUserPHID() {
-    return $this->userPHID;
+  public function getHostPHID() {
+    return $this->hostPHID;
   }
 
   public function setName($name) {

src/applications/calendar/xaction/PhabricatorCalendarEventAcceptTransaction.php

@@ -0,0 +1,25 @@
+<?php
+
+final class PhabricatorCalendarEventAcceptTransaction
+  extends PhabricatorCalendarEventReplyTransaction {
+
+  const TRANSACTIONTYPE = 'calendar.accept';
+
+  public function generateNewValue($object, $value) {
+    return PhabricatorCalendarEventInvitee::STATUS_ATTENDING;
+  }
+
+  public function getTitle() {
+    return pht(
+      '%s is attending this event.',
+      $this->renderAuthor());
+  }
+
+  public function getTitleForFeed() {
+    return pht(
+      '%s is attending %s.',
+      $this->renderAuthor(),
+      $this->renderObject());
+  }
+
+}

src/applications/calendar/xaction/PhabricatorCalendarEventAllDayTransaction.php

@@ -0,0 +1,46 @@
+<?php
+
+final class PhabricatorCalendarEventAllDayTransaction
+  extends PhabricatorCalendarEventTransactionType {
+
+  const TRANSACTIONTYPE = 'calendar.allday';
+
+  public function generateOldValue($object) {
+    return (int)$object->getIsAllDay();
+  }
+
+  public function generateNewValue($object, $value) {
+    return (int)$value;
+  }
+
+  public function applyInternalEffects($object, $value) {
+    $object->setIsAllDay($value);
+  }
+
+  public function getTitle() {
+    if ($this->getNewValue()) {
+      return pht(
+        '%s changed this as an all day event.',
+        $this->renderAuthor());
+    } else {
+      return pht(
+        '%s conveted this from an all day event.',
+        $this->renderAuthor());
+    }
+  }
+
+  public function getTitleForFeed() {
+    if ($this->getNewValue()) {
+      return pht(
+        '%s changed %s to an all day event.',
+        $this->renderAuthor(),
+        $this->renderObject());
+    } else {
+      return pht(
+        '%s converted %s from an all day event.',
+        $this->renderAuthor(),
+        $this->renderObject());
+    }
+  }
+
+}

src/applications/calendar/xaction/PhabricatorCalendarEventCancelTransaction.php

@@ -0,0 +1,46 @@
+<?php
+
+final class PhabricatorCalendarEventCancelTransaction
+  extends PhabricatorCalendarEventTransactionType {
+
+  const TRANSACTIONTYPE = 'calendar.cancel';
+
+  public function generateOldValue($object) {
+    return (int)$object->getIsCancelled();
+  }
+
+  public function generateNewValue($object, $value) {
+    return (int)$value;
+  }
+
+  public function applyInternalEffects($object, $value) {
+    $object->setIsCancelled($value);
+  }
+
+  public function getTitle() {
+    if ($this->getNewValue()) {
+      return pht(
+        '%s cancelled this event.',
+        $this->renderAuthor());
+    } else {
+      return pht(
+        '%s reinstated this event.',
+        $this->renderAuthor());
+    }
+  }
+
+  public function getTitleForFeed() {
+    if ($this->getNewValue()) {
+      return pht(
+        '%s cancelled %s.',
+        $this->renderAuthor(),
+        $this->renderObject());
+    } else {
+      return pht(
+        '%s reinstated %s.',
+        $this->renderAuthor(),
+        $this->renderObject());
+    }
+  }
+
+}

src/applications/calendar/xaction/PhabricatorCalendarEventDateTransaction.php

@@ -0,0 +1,27 @@
+<?php
+
+abstract class PhabricatorCalendarEventDateTransaction
+  extends PhabricatorCalendarEventTransactionType {
+
+  abstract protected function getInvalidDateMessage();
+
+  public function generateNewValue($object, $value) {
+    return $value->getEpoch();
+  }
+
+  public function validateTransactions($object, array $xactions) {
+    $errors = array();
+
+    foreach ($xactions as $xaction) {
+      if ($xaction->getNewValue()->isValid()) {
+        continue;
+      }
+
+      $message = $this->getInvalidDateMessage();
+      $errors[] = $this->newInvalidError($message, $xaction);
+    }
+
+    return $errors;
+  }
+
+}

src/applications/calendar/xaction/PhabricatorCalendarEventDeclineTransaction.php

@@ -0,0 +1,25 @@
+<?php
+
+final class PhabricatorCalendarEventDeclineTransaction
+  extends PhabricatorCalendarEventReplyTransaction {
+
+  const TRANSACTIONTYPE = 'calendar.decline';
+
+  public function generateNewValue($object, $value) {
+    return PhabricatorCalendarEventInvitee::STATUS_DECLINED;
+  }
+
+  public function getTitle() {
+    return pht(
+      '%s declined this event.',
+      $this->renderAuthor());
+  }
+
+  public function getTitleForFeed() {
+    return pht(
+      '%s declined %s.',
+      $this->renderAuthor(),
+      $this->renderObject());
+  }
+
+}

src/applications/calendar/xaction/PhabricatorCalendarEventDescriptionTransaction.php

@@ -0,0 +1,42 @@
+<?php
+
+final class PhabricatorCalendarEventDescriptionTransaction
+  extends PhabricatorCalendarEventTransactionType {
+
+  const TRANSACTIONTYPE = 'calendar.description';
+
+  public function generateOldValue($object) {
+    return $object->getDescription();
+  }
+
+  public function applyInternalEffects($object, $value) {
+    $object->setDescription($value);
+  }
+
+  public function getTitle() {
+    return pht(
+      '%s updated the event description.',
+      $this->renderAuthor());
+  }
+
+  public function getTitleForFeed() {
+    return pht(
+      '%s updated the event description for %s.',
+      $this->renderAuthor(),
+      $this->renderObject());
+  }
+
+  public function hasChangeDetailView() {
+    return true;
+  }
+
+  public function newChangeDetailView() {
+    $viewer = $this->getViewer();
+
+    return id(new PhabricatorApplicationTransactionTextDiffDetailView())
+      ->setViewer($viewer)
+      ->setOldText($this->getOldValue())
+      ->setNewText($this->getNewValue());
+  }
+
+}

src/applications/calendar/xaction/PhabricatorCalendarEventEndDateTransaction.php

@@ -0,0 +1,47 @@
+<?php
+
+final class PhabricatorCalendarEventEndDateTransaction
+  extends PhabricatorCalendarEventDateTransaction {
+
+  const TRANSACTIONTYPE = 'calendar.enddate';
+
+  public function generateOldValue($object) {
+    return $object->getDateTo();
+  }
+
+  public function applyInternalEffects($object, $value) {
+    $actor = $this->getActor();
+
+    $object->setDateTo($value);
+
+    $object->setAllDayDateTo(
+      $object->getDateEpochForTimezone(
+        $value,
+        $actor->getTimeZone(),
+        'Y-m-d 23:59:00',
+        null,
+        new DateTimeZone('UTC')));
+  }
+
+  public function getTitle() {
+    return pht(
+      '%s changed the end date for this event from %s to %s.',
+      $this->renderAuthor(),
+      $this->renderOldDate(),
+      $this->renderNewDate());
+  }
+
+  public function getTitleForFeed() {
+    return pht(
+      '%s changed the end date for %s from %s to %s.',
+      $this->renderAuthor(),
+      $this->renderObject(),
+      $this->renderOldDate(),
+      $this->renderNewDate());
+  }
+
+  protected function getInvalidDateMessage() {
+    return pht('End date is invalid.');
+  }
+
+}

src/applications/calendar/xaction/PhabricatorCalendarEventFrequencyTransaction.php

@@ -0,0 +1,75 @@
+<?php
+
+final class PhabricatorCalendarEventFrequencyTransaction
+  extends PhabricatorCalendarEventTransactionType {
+
+  const TRANSACTIONTYPE = 'calendar.frequency';
+
+  public function generateOldValue($object) {
+    return $object->getFrequencyRule();
+  }
+
+  public function applyInternalEffects($object, $value) {
+    $object->setRecurrenceFrequency(
+      array(
+        'rule' => $value,
+      ));
+  }
+
+  public function getTitle() {
+    $frequency = $this->getFrequencyRule($this->getNewValue());
+    switch ($frequency) {
+      case PhabricatorCalendarEvent::FREQUENCY_DAILY:
+        return pht(
+          '%s set this event to repeat daily.',
+          $this->renderAuthor());
+      case PhabricatorCalendarEvent::FREQUENCY_WEEKLY:
+        return pht(
+          '%s set this event to repeat weekly.',
+          $this->renderAuthor());
+      case PhabricatorCalendarEvent::FREQUENCY_MONTHLY:
+        return pht(
+          '%s set this event to repeat monthly.',
+          $this->renderAuthor());
+      case PhabricatorCalendarEvent::FREQUENCY_YEARLY:
+        return pht(
+          '%s set this event to repeat yearly.',
+          $this->renderAuthor());
+    }
+  }
+
+  public function getTitleForFeed() {
+    $frequency = $this->getFrequencyRule($this->getNewValue());
+    switch ($frequency) {
+      case PhabricatorCalendarEvent::FREQUENCY_DAILY:
+        return pht(
+          '%s set %s to repeat daily.',
+          $this->renderAuthor(),
+          $this->renderObject());
+      case PhabricatorCalendarEvent::FREQUENCY_WEEKLY:
+        return pht(
+          '%s set %s to repeat weekly.',
+          $this->renderAuthor(),
+          $this->renderObject());
+      case PhabricatorCalendarEvent::FREQUENCY_MONTHLY:
+        return pht(
+          '%s set %s to repeat monthly.',
+          $this->renderAuthor(),
+          $this->renderObject());
+      case PhabricatorCalendarEvent::FREQUENCY_YEARLY:
+        return pht(
+          '%s set %s to repeat yearly.',
+          $this->renderAuthor(),
+          $this->renderObject());
+    }
+  }
+
+  private function getFrequencyRule($value) {
+    if (is_array($value)) {
+      $value = idx($value, 'rule');
+    } else {
+      return $value;
+    }
+  }
+
+}

src/applications/calendar/xaction/PhabricatorCalendarEventHostTransaction.php

@@ -0,0 +1,59 @@
+<?php
+
+final class PhabricatorCalendarEventHostTransaction
+  extends PhabricatorCalendarEventTransactionType {
+
+  const TRANSACTIONTYPE = 'calendar.host';
+
+  public function generateOldValue($object) {
+    return $object->getHostPHID();
+  }
+
+  public function applyInternalEffects($object, $value) {
+    $object->setHostPHID($value);
+  }
+
+  public function getTitle() {
+    return pht(
+      '%s changed the host of this event from %s to %s.',
+      $this->renderAuthor(),
+      $this->renderOldHandle(),
+      $this->renderNewHandle());
+  }
+
+  public function getTitleForFeed() {
+    return pht(
+      '%s changed the host of %s from %s to %s.',
+      $this->renderAuthor(),
+      $this->renderObject(),
+      $this->renderOldHandle(),
+      $this->renderNewHandle());
+  }
+
+  public function validateTransactions($object, array $xactions) {
+    $errors = array();
+
+    foreach ($xactions as $xaction) {
+      $host_phid = $xaction->getNewValue();
+      if (!$host_phid) {
+        $errors[] = $this->newRequiredError(
+          pht('Event host is required.'));
+        continue;
+      }
+
+      $user = id(new PhabricatorPeopleQuery())
+        ->setViewer($this->getActor())
+        ->withPHIDs(array($host_phid))
+        ->executeOne();
+      if (!$user) {
+        $errors[] = $this->newInvalidError(
+          pht(
+            'Host PHID "%s" is not a valid user PHID.',
+            $host_phid));
+      }
+    }
+
+    return $errors;
+  }
+
+}

src/applications/calendar/xaction/PhabricatorCalendarEventIconTransaction.php

@@ -0,0 +1,44 @@
+<?php
+
+final class PhabricatorCalendarEventIconTransaction
+  extends PhabricatorCalendarEventTransactionType {
+
+  const TRANSACTIONTYPE = 'calendar.icon';
+
+  public function generateOldValue($object) {
+    return $object->getIcon();
+  }
+
+  public function applyInternalEffects($object, $value) {
+    $object->setIcon($value);
+  }
+
+  public function getTitle() {
+    $old = $this->getIconLabel($this->getOldValue());
+    $new = $this->getIconLabel($this->getNewValue());
+
+    return pht(
+      '%s changed the event icon from %s to %s.',
+      $this->renderAuthor(),
+      $this->renderValue($old),
+      $this->renderValue($new));
+  }
+
+  public function getTitleForFeed() {
+    $old = $this->getIconLabel($this->getOldValue());
+    $new = $this->getIconLabel($this->getNewValue());
+
+    return pht(
+      '%s changed the icon for %s from %s to %s.',
+      $this->renderAuthor(),
+      $this->renderObject(),
+      $this->renderValue($old),
+      $this->renderValue($new));
+  }
+
+  private function getIconLabel($icon) {
+    $set = new PhabricatorCalendarIconSet();
+    return $set->getIconLabel($icon);
+  }
+
+}

src/applications/calendar/xaction/PhabricatorCalendarEventInviteTransaction.php

@@ -0,0 +1,183 @@
+<?php
+
+final class PhabricatorCalendarEventInviteTransaction
+  extends PhabricatorCalendarEventTransactionType {
+
+  const TRANSACTIONTYPE = 'calendar.invite';
+
+  public function generateOldValue($object) {
+    $status_uninvited = PhabricatorCalendarEventInvitee::STATUS_UNINVITED;
+
+    $invitees = $object->getInvitees();
+    foreach ($invitees as $key => $invitee) {
+      if ($invitee->getStatus() == $status_uninvited) {
+        unset($invitees[$key]);
+      }
+    }
+
+    return array_values(mpull($invitees, 'getInviteePHID'));
+  }
+
+  private function generateChangeMap($object, $new_value) {
+    $status_invited = PhabricatorCalendarEventInvitee::STATUS_INVITED;
+    $status_uninvited = PhabricatorCalendarEventInvitee::STATUS_UNINVITED;
+    $status_attending = PhabricatorCalendarEventInvitee::STATUS_ATTENDING;
+
+    $old = $this->generateOldValue($object);
+
+    $add = array_diff($new_value, $old);
+    $rem = array_diff($old, $new_value);
+
+    $map = array();
+    foreach ($add as $phid) {
+        $map[$phid] = $status_invited;
+    }
+    foreach ($rem as $phid) {
+        $map[$phid] = $status_uninvited;
+    }
+
+    // If we're creating this event and the actor is inviting themselves,
+    // mark them as attending.
+    if ($this->isNewObject()) {
+      $acting_phid = $this->getActingAsPHID();
+      if (isset($map[$acting_phid])) {
+        $map[$acting_phid] = $status_attending;
+      }
+    }
+
+    return $map;
+  }
+
+  public function applyExternalEffects($object, $value) {
+    $map = $this->generateChangeMap($object, $value);
+
+    $invitees = $object->getInvitees();
+    $invitees = mpull($invitees, null, 'getInviteePHID');
+
+    foreach ($map as $phid => $status) {
+      $invitee = idx($invitees, $phid);
+      if (!$invitee) {
+        $invitee = id(new PhabricatorCalendarEventInvitee())
+          ->setEventPHID($object->getPHID())
+          ->setInviteePHID($phid)
+          ->setInviterPHID($this->getActingAsPHID());
+        $invitees[] = $invitee;
+      }
+      $invitee->setStatus($status)
+        ->save();
+    }
+
+    $object->attachInvitees($invitees);
+  }
+
+  public function validateTransactions($object, array $xactions) {
+    $actor = $this->getActor();
+
+    $errors = array();
+
+    $old = $object->getInvitees();
+    $old = mpull($old, null, 'getInviteePHID');
+    foreach ($xactions as $xaction) {
+      $new = $xaction->getNewValue();
+      $new = array_fuse($new);
+      $add = array_diff_key($new, $old);
+      if (!$add) {
+        continue;
+      }
+
+      // In the UI, we only allow you to invite mailable objects, but there
+      // is no definitive marker for "invitable object" today. Just allow
+      // any valid object to be invited.
+      $objects = id(new PhabricatorObjectQuery())
+        ->setViewer($actor)
+        ->withPHIDs($add)
+        ->execute();
+      $objects = mpull($objects, null, 'getPHID');
+      foreach ($add as $phid) {
+        if (isset($objects[$phid])) {
+          continue;
+        }
+
+        $errors[] = $this->newInvalidError(
+          pht(
+            'Invitee "%s" identifies an object that does not exist or '.
+            'which you do not have permission to view.',
+            $phid),
+          $xaction);
+      }
+    }
+
+    return $errors;
+  }
+
+  public function getIcon() {
+    return 'fa-user-plus';
+  }
+
+  public function getTitle() {
+    list($add, $rem) = $this->getChanges();
+
+    if ($add && !$rem) {
+      return pht(
+        '%s invited %s attendee(s): %s.',
+        $this->renderAuthor(),
+        phutil_count($add),
+        $this->renderHandleList($add));
+    } else if (!$add && $rem) {
+      return pht(
+        '%s uninvited %s attendee(s): %s.',
+        $this->renderAuthor(),
+        phutil_count($rem),
+        $this->renderHandleList($rem));
+    } else {
+      return pht(
+        '%s invited %s attendee(s): %s; uninvinted %s attendee(s): %s.',
+        $this->renderAuthor(),
+        phutil_count($add),
+        $this->renderHandleList($add),
+        phutil_count($rem),
+        $this->renderHandleList($rem));
+    }
+  }
+
+  public function getTitleForFeed() {
+    list($add, $rem) = $this->getChanges();
+
+    if ($add && !$rem) {
+      return pht(
+        '%s invited %s attendee(s) to %s: %s.',
+        $this->renderAuthor(),
+        phutil_count($add),
+        $this->renderObject(),
+        $this->renderHandleList($add));
+    } else if (!$add && $rem) {
+      return pht(
+        '%s uninvited %s attendee(s) to %s: %s.',
+        $this->renderAuthor(),
+        phutil_count($rem),
+        $this->renderObject(),
+        $this->renderHandleList($rem));
+    } else {
+      return pht(
+        '%s updated the invite list for %s, invited %s: %s; '.
+        'uninvinted %s: %s.',
+        $this->renderAuthor(),
+        $this->renderObject(),
+        phutil_count($add),
+        $this->renderHandleList($add),
+        phutil_count($rem),
+        $this->renderHandleList($rem));
+    }
+  }
+
+  private function getChanges() {
+    $old = $this->getOldValue();
+    $new = $this->getNewValue();
+
+    $add = array_diff($new, $old);
+    $rem = array_diff($old, $new);
+
+    return array(array_fuse($add), array_fuse($rem));
+  }
+
+}

src/applications/calendar/xaction/PhabricatorCalendarEventNameTransaction.php

@@ -0,0 +1,44 @@
+<?php
+
+final class PhabricatorCalendarEventNameTransaction
+  extends PhabricatorCalendarEventTransactionType {
+
+  const TRANSACTIONTYPE = 'calendar.name';
+
+  public function generateOldValue($object) {
+    return $object->getName();
+  }
+
+  public function applyInternalEffects($object, $value) {
+    $object->setName($value);
+  }
+
+  public function getTitle() {
+    return pht(
+      '%s renamed this event from %s to %s.',
+      $this->renderAuthor(),
+      $this->renderOldValue(),
+      $this->renderNewValue());
+  }
+
+  public function getTitleForFeed() {
+    return pht(
+      '%s renamed %s from %s to %s.',
+      $this->renderAuthor(),
+      $this->renderObject(),
+      $this->renderOldValue(),
+      $this->renderNewValue());
+  }
+
+  public function validateTransactions($object, array $xactions) {
+    $errors = array();
+
+    if ($this->isEmptyTextTransaction($object->getName(), $xactions)) {
+      $errors[] = $this->newRequiredError(
+        pht('Events must have a name.'));
+    }
+
+    return $errors;
+  }
+
+}

src/applications/calendar/xaction/PhabricatorCalendarEventRecurringTransaction.php

@@ -0,0 +1,44 @@
+<?php
+
+final class PhabricatorCalendarEventRecurringTransaction
+  extends PhabricatorCalendarEventTransactionType {
+
+  const TRANSACTIONTYPE = 'calendar.recurring';
+
+  public function generateOldValue($object) {
+    return (int)$object->getIsRecurring();
+  }
+
+  public function generateNewValue($object, $value) {
+    return (int)$value;
+  }
+
+  public function applyInternalEffects($object, $value) {
+    $object->setIsRecurring($value);
+  }
+
+  public function validateTransactions($object, array $xactions) {
+    $errors = array();
+
+    $old = $object->getIsRecurring();
+    foreach ($xactions as $xaction) {
+      if ($this->isNewObject()) {
+        continue;
+      }
+
+      if ($xaction->getNewValue() == $old) {
+        continue;
+      }
+
+      $errors[] = $this->newInvalidError(
+        pht(
+          'An event can only be made recurring when it is created. '.
+          'You can not convert an existing event into a recurring '.
+          'event or vice versa.'),
+        $xaction);
+    }
+
+    return $errors;
+  }
+
+}

src/applications/calendar/xaction/PhabricatorCalendarEventReplyTransaction.php

@@ -0,0 +1,33 @@
+<?php
+
+abstract class PhabricatorCalendarEventReplyTransaction
+  extends PhabricatorCalendarEventTransactionType {
+
+  public function generateOldValue($object) {
+    $actor_phid = $this->getActingAsPHID();
+    return $object->getUserInviteStatus($actor_phid);
+  }
+
+  public function applyExternalEffects($object, $value) {
+    $acting_phid = $this->getActingAsPHID();
+
+    $invitees = $object->getInvitees();
+    $invitees = mpull($invitees, null, 'getInviteePHID');
+
+    $invitee = idx($invitees, $acting_phid);
+    if (!$invitee) {
+      $invitee = id(new PhabricatorCalendarEventInvitee())
+        ->setEventPHID($object->getPHID())
+        ->setInviteePHID($acting_phid)
+        ->setInviterPHID($acting_phid);
+      $invitees[$acting_phid] = $invitee;
+    }
+
+    $invitee
+      ->setStatus($value)
+      ->save();
+
+    $object->attachInvitees($invitees);
+  }
+
+}

src/applications/calendar/xaction/PhabricatorCalendarEventStartDateTransaction.php

@@ -0,0 +1,47 @@
+<?php
+
+final class PhabricatorCalendarEventStartDateTransaction
+  extends PhabricatorCalendarEventDateTransaction {
+
+  const TRANSACTIONTYPE = 'calendar.startdate';
+
+  public function generateOldValue($object) {
+    return $object->getDateFrom();
+  }
+
+  public function applyInternalEffects($object, $value) {
+    $actor = $this->getActor();
+
+    $object->setDateFrom($value);
+
+    $object->setAllDayDateFrom(
+      $object->getDateEpochForTimezone(
+        $value,
+        $actor->getTimeZone(),
+        'Y-m-d',
+        null,
+        new DateTimeZone('UTC')));
+  }
+
+  public function getTitle() {
+    return pht(
+      '%s changed the start date for this event from %s to %s.',
+      $this->renderAuthor(),
+      $this->renderOldDate(),
+      $this->renderNewDate());
+  }
+
+  public function getTitleForFeed() {
+    return pht(
+      '%s changed the start date for %s from %s to %s.',
+      $this->renderAuthor(),
+      $this->renderObject(),
+      $this->renderOldDate(),
+      $this->renderNewDate());
+  }
+
+  protected function getInvalidDateMessage() {
+    return pht('Start date is invalid.');
+  }
+
+}

src/applications/calendar/xaction/PhabricatorCalendarEventTransactionType.php

@@ -0,0 +1,4 @@
+<?php
+
+abstract class PhabricatorCalendarEventTransactionType
+  extends PhabricatorModularTransactionType {}

src/applications/calendar/xaction/PhabricatorCalendarEventUntilDateTransaction.php

@@ -0,0 +1,35 @@
+<?php
+
+final class PhabricatorCalendarEventUntilDateTransaction
+  extends PhabricatorCalendarEventDateTransaction {
+
+  const TRANSACTIONTYPE = 'calendar.recurrenceenddate';
+
+  public function generateOldValue($object) {
+    return $object->getRecurrenceEndDate();
+  }
+
+  public function applyInternalEffects($object, $value) {
+    $object->setRecurrenceEndDate($value);
+  }
+
+  public function getTitle() {
+    return pht(
+      '%s changed this event to repeat until %s.',
+      $this->renderAuthor(),
+      $this->renderNewDate());
+  }
+
+  public function getTitleForFeed() {
+    return pht(
+      '%s changed %s to repeat until %s.',
+      $this->renderAuthor(),
+      $this->renderObject(),
+      $this->renderNewDate());
+  }
+
+  protected function getInvalidDateMessage() {
+    return pht('Repeat until date is invalid.');
+  }
+
+}

src/applications/conpherence/query/ConpherenceThreadQuery.php

@@ -314,6 +314,8 @@ final class ConpherenceThreadQuery
 
     $events = array();
     if ($participant_phids) {
+      // TODO: All of this Calendar code is probably extra-broken, but none
+      // of it is currently reachable in the UI.
       $events = id(new PhabricatorCalendarEventQuery())
         ->setViewer($this->getViewer())
         ->withInvitedPHIDs($participant_phids)

src/applications/differential/controller/DifferentialInlineCommentEditController.php

@@ -46,7 +46,7 @@ final class DifferentialInlineCommentEditController
       throw new Exception(
         pht(
           'Changeset ID "%s" is part of diff ID "%s", but that diff '.
-          'is attached to reivsion "%s", not revision "%s".',
+          'is attached to revision "%s", not revision "%s".',
           $changeset_id,
           $diff->getID(),
           $diff->getRevisionID(),

src/applications/differential/view/DifferentialChangesetListView.php

@@ -342,18 +342,16 @@ final class DifferentialChangesetListView extends AphrontView {
     }
 
     $meta['containerID'] = $detail->getID();
-    $caret = phutil_tag('span', array('class' => 'caret'), '');
 
-    return javelin_tag(
-      'a',
-      array(
-        'class'   => 'button grey dropdown',
-        'meta'    => $meta,
-        'href'    => idx($meta, 'detailURI', '#'),
-        'target'  => '_blank',
-        'sigil'   => 'differential-view-options',
-      ),
-      array(pht('View Options'), $caret));
+    return id(new PHUIButtonView())
+      ->setTag('a')
+      ->setText(pht('View Options'))
+      ->setIcon('fa-bars')
+      ->setColor(PHUIButtonView::GREY)
+      ->setHref(idx($meta, 'detailURI', '#'))
+      ->setMetadata($meta)
+      ->addSigil('differential-view-options');
+
   }
 
 }

src/applications/files/controller/PhabricatorFileComposeController.php

@@ -35,7 +35,7 @@ final class PhabricatorFileComposeController
 
       $data = $composer->loadBuiltinFileData();
 
-      $file = PhabricatorFile::buildFromFileDataOrHash(
+      $file = PhabricatorFile::newFromFileData(
         $data,
         array(
           'name' => $composer->getBuiltinDisplayName(),

src/applications/files/query/PhabricatorFileQuery.php

@@ -16,6 +16,7 @@ final class PhabricatorFileQuery
   private $names;
   private $isPartial;
   private $needTransforms;
+  private $builtinKeys;
 
   public function withIDs(array $ids) {
     $this->ids = $ids;
@@ -47,6 +48,11 @@ final class PhabricatorFileQuery
     return $this;
   }
 
+  public function withBuiltinKeys(array $keys) {
+    $this->builtinKeys = $keys;
+    return $this;
+  }
+
   /**
    * Select files which are transformations of some other file. For example,
    * you can use this query to find previously generated thumbnails of an image
@@ -384,6 +390,13 @@ final class PhabricatorFileQuery
         (int)$this->isPartial);
     }
 
+    if ($this->builtinKeys !== null) {
+      $where[] = qsprintf(
+        $conn,
+        'builtinKey IN (%Ls)',
+        $this->builtinKeys);
+    }
+
     return $where;
   }
 

src/applications/files/storage/PhabricatorFile.php

@@ -42,6 +42,7 @@ final class PhabricatorFile extends PhabricatorFileDAO
   protected $contentHash;
   protected $metadata = array();
   protected $mailKey;
+  protected $builtinKey;
 
   protected $storageEngine;
   protected $storageFormat;
@@ -94,6 +95,7 @@ final class PhabricatorFile extends PhabricatorFileDAO
         'isExplicitUpload' => 'bool?',
         'mailKey' => 'bytes20',
         'isPartial' => 'bool',
+        'builtinKey' => 'text64?',
       ),
       self::CONFIG_KEY_SCHEMA => array(
         'key_phid' => null,
@@ -116,6 +118,10 @@ final class PhabricatorFile extends PhabricatorFileDAO
         'key_partial' => array(
           'columns' => array('authorPHID', 'isPartial'),
         ),
+        'key_builtin' => array(
+          'columns' => array('builtinKey'),
+          'unique' => true,
+        ),
       ),
     ) + parent::getConfiguration();
   }
@@ -1070,19 +1076,11 @@ final class PhabricatorFile extends PhabricatorFileDAO
   public static function loadBuiltins(PhabricatorUser $user, array $builtins) {
     $builtins = mpull($builtins, null, 'getBuiltinFileKey');
 
-    $specs = array();
-    foreach ($builtins as $key => $buitin) {
-      $specs[] = array(
-        'originalPHID' => PhabricatorPHIDConstants::PHID_VOID,
-        'transform'    => $key,
-      );
-    }
-
     // NOTE: Anyone is allowed to access builtin files.
 
     $files = id(new PhabricatorFileQuery())
       ->setViewer(PhabricatorUser::getOmnipotentUser())
-      ->withTransforms($specs)
+      ->withBuiltinKeys(array_keys($builtins))
       ->execute();
 
     $results = array();
@@ -1109,12 +1107,21 @@ final class PhabricatorFile extends PhabricatorFileDAO
       );
 
       $unguarded = AphrontWriteGuard::beginScopedUnguardedWrites();
+        try {
           $file = self::newFromFileData($data, $params);
-        $xform = id(new PhabricatorTransformedFile())
-          ->setOriginalPHID(PhabricatorPHIDConstants::PHID_VOID)
-          ->setTransform($key)
-          ->setTransformedPHID($file->getPHID())
-          ->save();
+        } catch (AphrontDuplicateKeyQueryException $ex) {
+          $file = id(new PhabricatorFileQuery())
+            ->setViewer(PhabricatorUser::getOmnipotentUser())
+            ->withBuiltinKeys(array($key))
+            ->executeOne();
+          if (!$file) {
+            throw new Exception(
+              pht(
+                'Collided mid-air when generating builtin file "%s", but '.
+                'then failed to load the object we collided with.',
+                $key));
+          }
+        }
       unset($unguarded);
 
       $file->attachObjectPHIDs(array());
@@ -1289,6 +1296,7 @@ final class PhabricatorFile extends PhabricatorFileDAO
     $builtin = idx($params, 'builtin');
     if ($builtin) {
       $this->setBuiltinName($builtin);
+      $this->setBuiltinKey($builtin);
     }
 
     $profile = idx($params, 'profile');

src/applications/files/storage/PhabricatorFileTransactionComment.php

@@ -7,20 +7,4 @@ final class PhabricatorFileTransactionComment
     return new PhabricatorFileTransaction();
   }
 
-  public function shouldUseMarkupCache($field) {
-    // Only cache submitted comments.
-    return ($this->getTransactionPHID() != null);
-  }
-
-  protected function getConfiguration() {
-    $config = parent::getConfiguration();
-    $config[self::CONFIG_KEY_SCHEMA] = array(
-      'key_draft' => array(
-        'columns' => array('authorPHID', 'transactionPHID'),
-        'unique' => true,
-      ),
-    ) + $config[self::CONFIG_KEY_SCHEMA];
-    return $config;
-  }
-
 }

src/applications/maniphest/controller/ManiphestTaskDetailController.php

@@ -87,13 +87,83 @@ final class ManiphestTaskDetailController extends ManiphestController {
       ->addPropertySection(pht('Description'), $description)
       ->addPropertySection(pht('Details'), $details);
 
+    $graph_limit = 100;
     $task_graph = id(new ManiphestTaskGraph())
       ->setViewer($viewer)
       ->setSeedPHID($task->getPHID())
+      ->setLimit($graph_limit)
       ->loadGraph();
     if (!$task_graph->isEmpty()) {
+      $parent_type = ManiphestTaskDependedOnByTaskEdgeType::EDGECONST;
+      $subtask_type = ManiphestTaskDependsOnTaskEdgeType::EDGECONST;
+      $parent_map = $task_graph->getEdges($parent_type);
+      $subtask_map = $task_graph->getEdges($subtask_type);
+      $parent_list = idx($parent_map, $task->getPHID(), array());
+      $subtask_list = idx($subtask_map, $task->getPHID(), array());
+      $has_parents = (bool)$parent_list;
+      $has_subtasks = (bool)$subtask_list;
+
+      $search_text = pht('Search...');
+
+      // First, get a count of direct parent tasks and subtasks. If there
+      // are too many of these, we just don't draw anything. You can use
+      // the search button to browse tasks with the search UI instead.
+      $direct_count = count($parent_list) + count($subtask_list);
+
+      if ($direct_count > $graph_limit) {
+        $message = pht(
+          'Task graph too large to display (this task is directly connected '.
+          'to more than %s other tasks). Use %s to explore connected tasks.',
+          $graph_limit,
+          phutil_tag('strong', array(), $search_text));
+        $message = phutil_tag('em', array(), $message);
+        $graph_table = id(new PHUIPropertyListView())
+          ->addTextContent($message);
+      } else {
+        // If there aren't too many direct tasks, but there are too many total
+        // tasks, we'll only render directly connected tasks.
+        if ($task_graph->isOverLimit()) {
+          $task_graph->setRenderOnlyAdjacentNodes(true);
+        }
         $graph_table = $task_graph->newGraphTable();
-      $view->addPropertySection(pht('Task Graph'), $graph_table);
+      }
+
+      $parents_uri = urisprintf(
+        '/?subtaskIDs=%d#R',
+        $task->getID());
+      $parents_uri = $this->getApplicationURI($parents_uri);
+
+      $subtasks_uri = urisprintf(
+        '/?parentIDs=%d#R',
+        $task->getID());
+      $subtasks_uri = $this->getApplicationURI($subtasks_uri);
+
+      $dropdown_menu = id(new PhabricatorActionListView())
+        ->setViewer($viewer)
+        ->addAction(
+          id(new PhabricatorActionView())
+            ->setHref($parents_uri)
+            ->setName(pht('Search Parent Tasks'))
+            ->setDisabled(!$has_parents)
+            ->setIcon('fa-chevron-circle-up'))
+        ->addAction(
+          id(new PhabricatorActionView())
+            ->setHref($subtasks_uri)
+            ->setName(pht('Search Subtasks'))
+            ->setDisabled(!$has_subtasks)
+            ->setIcon('fa-chevron-circle-down'));
+
+      $graph_menu = id(new PHUIButtonView())
+        ->setTag('a')
+        ->setIcon('fa-search')
+        ->setText($search_text)
+        ->setDropdownMenu($dropdown_menu);
+
+      $graph_header = id(new PHUIHeaderView())
+        ->setHeader(pht('Task Graph'))
+        ->addActionLink($graph_menu);
+
+      $view->addPropertySection($graph_header, $graph_table);
     }
 
     return $this->newPage()

src/applications/maniphest/query/ManiphestTaskQuery.php

@@ -20,6 +20,10 @@ final class ManiphestTaskQuery extends PhabricatorCursorPagedPolicyAwareQuery {
   private $subpriorityMin;
   private $subpriorityMax;
   private $bridgedObjectPHIDs;
+  private $hasOpenParents;
+  private $hasOpenSubtasks;
+  private $parentTaskIDs;
+  private $subtaskIDs;
 
   private $fullTextSearch   = '';
 
@@ -51,8 +55,6 @@ final class ManiphestTaskQuery extends PhabricatorCursorPagedPolicyAwareQuery {
 
   private $needSubscriberPHIDs;
   private $needProjectPHIDs;
-  private $blockingTasks;
-  private $blockedTasks;
 
   public function withAuthors(array $authors) {
     $this->authorPHIDs = $authors;
@@ -151,32 +153,24 @@ final class ManiphestTaskQuery extends PhabricatorCursorPagedPolicyAwareQuery {
     return $this;
   }
 
-  /**
-   * True returns tasks that are blocking other tasks only.
-   * False returns tasks that are not blocking other tasks only.
-   * Null returns tasks regardless of blocking status.
-   */
-  public function withBlockingTasks($mode) {
-    $this->blockingTasks = $mode;
+  public function withOpenSubtasks($value) {
+    $this->hasOpenSubtasks = $value;
     return $this;
   }
 
-  public function shouldJoinBlockingTasks() {
-    return $this->blockingTasks !== null;
-  }
-
-  /**
-   * True returns tasks that are blocked by other tasks only.
-   * False returns tasks that are not blocked by other tasks only.
-   * Null returns tasks regardless of blocked by status.
-   */
-  public function withBlockedTasks($mode) {
-    $this->blockedTasks = $mode;
+  public function withOpenParents($value) {
+    $this->hasOpenParents = $value;
     return $this;
   }
 
-  public function shouldJoinBlockedTasks() {
-    return $this->blockedTasks !== null;
+  public function withParentTaskIDs(array $ids) {
+    $this->parentTaskIDs = $ids;
+    return $this;
+  }
+
+  public function withSubtaskIDs(array $ids) {
+    $this->subtaskIDs = $ids;
+    return $this;
   }
 
   public function withDateCreatedBefore($date_created_before) {
@@ -335,7 +329,6 @@ final class ManiphestTaskQuery extends PhabricatorCursorPagedPolicyAwareQuery {
     $where = parent::buildWhereClauseParts($conn);
 
     $where[] = $this->buildStatusWhereClause($conn);
-    $where[] = $this->buildDependenciesWhereClause($conn);
     $where[] = $this->buildOwnerWhereClause($conn);
     $where[] = $this->buildFullTextWhereClause($conn);
 
@@ -526,71 +519,64 @@ final class ManiphestTaskQuery extends PhabricatorCursorPagedPolicyAwareQuery {
       $fulltext_results);
   }
 
-  private function buildDependenciesWhereClause(
-    AphrontDatabaseConnection $conn) {
-
-    if (!$this->shouldJoinBlockedTasks() &&
-        !$this->shouldJoinBlockingTasks()) {
-      return null;
-    }
-
-    $parts = array();
-    if ($this->blockingTasks === true) {
-      $parts[] = qsprintf(
-        $conn,
-        'blocking.dst IS NOT NULL AND blockingtask.status IN (%Ls)',
-        ManiphestTaskStatus::getOpenStatusConstants());
-    } else if ($this->blockingTasks === false) {
-      $parts[] = qsprintf(
-        $conn,
-        'blocking.dst IS NULL OR blockingtask.status NOT IN (%Ls)',
-        ManiphestTaskStatus::getOpenStatusConstants());
-    }
-
-    if ($this->blockedTasks === true) {
-      $parts[] = qsprintf(
-        $conn,
-        'blocked.dst IS NOT NULL AND blockedtask.status IN (%Ls)',
-        ManiphestTaskStatus::getOpenStatusConstants());
-    } else if ($this->blockedTasks === false) {
-      $parts[] = qsprintf(
-        $conn,
-        'blocked.dst IS NULL OR blockedtask.status NOT IN (%Ls)',
-        ManiphestTaskStatus::getOpenStatusConstants());
-    }
-
-    return '('.implode(') OR (', $parts).')';
-  }
-
-  protected function buildJoinClauseParts(AphrontDatabaseConnection $conn_r) {
+  protected function buildJoinClauseParts(AphrontDatabaseConnection $conn) {
+    $open_statuses = ManiphestTaskStatus::getOpenStatusConstants();
     $edge_table = PhabricatorEdgeConfig::TABLE_NAME_EDGE;
+    $task_table = $this->newResultObject()->getTableName();
+
+    $parent_type = ManiphestTaskDependedOnByTaskEdgeType::EDGECONST;
+    $subtask_type = ManiphestTaskDependsOnTaskEdgeType::EDGECONST;
 
     $joins = array();
-
-    if ($this->shouldJoinBlockingTasks()) {
-      $joins[] = qsprintf(
-        $conn_r,
-        'LEFT JOIN %T blocking ON blocking.src = task.phid '.
-        'AND blocking.type = %d '.
-        'LEFT JOIN %T blockingtask ON blocking.dst = blockingtask.phid',
-        $edge_table,
-        ManiphestTaskDependedOnByTaskEdgeType::EDGECONST,
-        id(new ManiphestTask())->getTableName());
+    if ($this->hasOpenParents !== null) {
+      if ($this->hasOpenParents) {
+        $join_type = 'JOIN';
+      } else {
+        $join_type = 'LEFT JOIN';
       }
-    if ($this->shouldJoinBlockedTasks()) {
+
       $joins[] = qsprintf(
-        $conn_r,
-        'LEFT JOIN %T blocked ON blocked.src = task.phid '.
-        'AND blocked.type = %d '.
-        'LEFT JOIN %T blockedtask ON blocked.dst = blockedtask.phid',
+        $conn,
+        '%Q %T e_parent
+          ON e_parent.src = task.phid
+          AND e_parent.type = %d
+         %Q %T parent
+           ON e_parent.dst = parent.phid
+           AND parent.status IN (%Ls)',
+        $join_type,
         $edge_table,
-        ManiphestTaskDependsOnTaskEdgeType::EDGECONST,
-        id(new ManiphestTask())->getTableName());
+        $parent_type,
+        $join_type,
+        $task_table,
+        $open_statuses);
+    }
+
+    if ($this->hasOpenSubtasks !== null) {
+      if ($this->hasOpenSubtasks) {
+        $join_type = 'JOIN';
+      } else {
+        $join_type = 'LEFT JOIN';
+      }
+
+      $joins[] = qsprintf(
+        $conn,
+        '%Q %T e_subtask
+          ON e_subtask.src = task.phid
+          AND e_subtask.type = %d
+         %Q %T subtask
+           ON e_subtask.dst = subtask.phid
+           AND subtask.status IN (%Ls)',
+        $join_type,
+        $edge_table,
+        $subtask_type,
+        $join_type,
+        $task_table,
+        $open_statuses);
     }
 
     if ($this->subscriberPHIDs !== null) {
       $joins[] = qsprintf(
-        $conn_r,
+        $conn,
         'JOIN %T e_ccs ON e_ccs.src = task.phid '.
         'AND e_ccs.type = %s '.
         'AND e_ccs.dst in (%Ls)',
@@ -604,7 +590,7 @@ final class ManiphestTaskQuery extends PhabricatorCursorPagedPolicyAwareQuery {
         $ignore_group_phids = $this->getIgnoreGroupedProjectPHIDs();
         if ($ignore_group_phids) {
           $joins[] = qsprintf(
-            $conn_r,
+            $conn,
             'LEFT JOIN %T projectGroup ON task.phid = projectGroup.src
               AND projectGroup.type = %d
               AND projectGroup.dst NOT IN (%Ls)',
@@ -613,29 +599,62 @@ final class ManiphestTaskQuery extends PhabricatorCursorPagedPolicyAwareQuery {
             $ignore_group_phids);
         } else {
           $joins[] = qsprintf(
-            $conn_r,
+            $conn,
             'LEFT JOIN %T projectGroup ON task.phid = projectGroup.src
               AND projectGroup.type = %d',
             $edge_table,
             PhabricatorProjectObjectHasProjectEdgeType::EDGECONST);
         }
         $joins[] = qsprintf(
-          $conn_r,
+          $conn,
           'LEFT JOIN %T projectGroupName
             ON projectGroup.dst = projectGroupName.indexedObjectPHID',
           id(new ManiphestNameIndex())->getTableName());
         break;
     }
 
-    $joins[] = parent::buildJoinClauseParts($conn_r);
+    if ($this->parentTaskIDs !== null) {
+      $joins[] = qsprintf(
+        $conn,
+        'JOIN %T e_has_parent
+          ON e_has_parent.src = task.phid
+          AND e_has_parent.type = %d
+         JOIN %T has_parent
+           ON e_has_parent.dst = has_parent.phid
+           AND has_parent.id IN (%Ld)',
+        $edge_table,
+        $parent_type,
+        $task_table,
+        $this->parentTaskIDs);
+    }
+
+    if ($this->subtaskIDs !== null) {
+      $joins[] = qsprintf(
+        $conn,
+        'JOIN %T e_has_subtask
+          ON e_has_subtask.src = task.phid
+          AND e_has_subtask.type = %d
+         JOIN %T has_subtask
+           ON e_has_subtask.dst = has_subtask.phid
+           AND has_subtask.id IN (%Ld)',
+        $edge_table,
+        $subtask_type,
+        $task_table,
+        $this->subtaskIDs);
+    }
+
+    $joins[] = parent::buildJoinClauseParts($conn);
 
     return $joins;
   }
 
   protected function buildGroupClause(AphrontDatabaseConnection $conn_r) {
-    $joined_multiple_rows = $this->shouldJoinBlockingTasks() ||
-                            $this->shouldJoinBlockedTasks() ||
-                            ($this->shouldGroupQueryResultRows());
+    $joined_multiple_rows =
+      ($this->hasOpenParents !== null) ||
+      ($this->hasOpenSubtasks !== null) ||
+      ($this->parentTaskIDs !== null) ||
+      ($this->subtaskIDs !== null) ||
+      $this->shouldGroupQueryResultRows();
 
     $joined_project_name = ($this->groupBy == self::GROUP_PROJECT);
 
@@ -652,6 +671,30 @@ final class ManiphestTaskQuery extends PhabricatorCursorPagedPolicyAwareQuery {
     }
   }
 
+
+  protected function buildHavingClauseParts(AphrontDatabaseConnection $conn) {
+    $having = parent::buildHavingClauseParts($conn);
+
+    if ($this->hasOpenParents !== null) {
+      if (!$this->hasOpenParents) {
+        $having[] = qsprintf(
+          $conn,
+          'COUNT(parent.phid) = 0');
+      }
+    }
+
+    if ($this->hasOpenSubtasks !== null) {
+      if (!$this->hasOpenSubtasks) {
+        $having[] = qsprintf(
+          $conn,
+          'COUNT(subtask.phid) = 0');
+      }
+    }
+
+    return $having;
+  }
+
+
   /**
    * Return project PHIDs which we should ignore when grouping tasks by
    * project. For example, if a user issues a query like:

src/applications/maniphest/query/ManiphestTaskSearchEngine.php

@@ -77,19 +77,29 @@ final class ManiphestTaskSearchEngine
         ->setLabel(pht('Contains Words'))
         ->setKey('fulltext'),
       id(new PhabricatorSearchThreeStateField())
-        ->setLabel(pht('Blocking'))
-        ->setKey('blocking')
+        ->setLabel(pht('Open Parents'))
+        ->setKey('hasParents')
+        ->setAliases(array('blocking'))
         ->setOptions(
           pht('(Show All)'),
-          pht('Show Only Tasks Blocking Other Tasks'),
-          pht('Hide Tasks Blocking Other Tasks')),
+          pht('Show Only Tasks With Open Parents'),
+          pht('Show Only Tasks Without Open Parents')),
       id(new PhabricatorSearchThreeStateField())
-        ->setLabel(pht('Blocked'))
-        ->setKey('blocked')
+        ->setLabel(pht('Open Subtasks'))
+        ->setKey('hasSubtasks')
+        ->setAliases(array('blocked'))
         ->setOptions(
           pht('(Show All)'),
-          pht('Show Only Task Blocked By Other Tasks'),
-          pht('Hide Tasks Blocked By Other Tasks')),
+          pht('Show Only Tasks With Open Subtasks'),
+          pht('Show Only Tasks Without Open Subtasks')),
+      id(new PhabricatorIDsSearchField())
+        ->setLabel(pht('Parent IDs'))
+        ->setKey('parentIDs')
+        ->setAliases(array('parentID')),
+      id(new PhabricatorIDsSearchField())
+        ->setLabel(pht('Subtask IDs'))
+        ->setKey('subtaskIDs')
+        ->setAliases(array('subtaskID')),
       id(new PhabricatorSearchSelectField())
         ->setLabel(pht('Group By'))
         ->setKey('group')
@@ -121,8 +131,10 @@ final class ManiphestTaskSearchEngine
       'statuses',
       'priorities',
       'fulltext',
-      'blocking',
-      'blocked',
+      'hasParents',
+      'hasSubtasks',
+      'parentIDs',
+      'subtaskIDs',
       'group',
       'order',
       'ids',
@@ -182,18 +194,26 @@ final class ManiphestTaskSearchEngine
       $query->withDateModifiedBefore($map['modifiedEnd']);
     }
 
-    if ($map['blocking'] !== null) {
-      $query->withBlockingTasks($map['blocking']);
+    if ($map['hasParents'] !== null) {
+      $query->withOpenParents($map['hasParents']);
     }
 
-    if ($map['blocked'] !== null) {
-      $query->withBlockedTasks($map['blocked']);
+    if ($map['hasSubtasks'] !== null) {
+      $query->withOpenSubtasks($map['hasSubtasks']);
     }
 
     if (strlen($map['fulltext'])) {
       $query->withFullTextSearch($map['fulltext']);
     }
 
+    if ($map['parentIDs']) {
+      $query->withParentTaskIDs($map['parentIDs']);
+    }
+
+    if ($map['subtaskIDs']) {
+      $query->withSubtaskIDs($map['subtaskIDs']);
+    }
+
     $group = idx($map, 'group');
     $group = idx($this->getGroupValues(), $group);
     if ($group) {

src/applications/packages/application/PhabricatorPackagesApplication.php

@@ -0,0 +1,85 @@
+<?php
+
+final class PhabricatorPackagesApplication extends PhabricatorApplication {
+
+  public function getName() {
+    return pht('Packages');
+  }
+
+  public function getShortDescription() {
+    return pht('Publish Software');
+  }
+
+  public function getFlavorText() {
+    return pht('Applications and Extensions');
+  }
+
+  public function getBaseURI() {
+    return '/packages/';
+  }
+
+  public function getIcon() {
+    return 'fa-gift';
+  }
+
+  public function isPrototype() {
+    return true;
+  }
+
+  protected function getCustomCapabilities() {
+    return array(
+      PhabricatorPackagesCreatePublisherCapability::CAPABILITY => array(
+        'default' => PhabricatorPolicies::POLICY_ADMIN,
+      ),
+      PhabricatorPackagesPublisherDefaultEditCapability::CAPABILITY => array(
+        'caption' => pht('Default edit policy for newly created publishers.'),
+        'template' => PhabricatorPackagesPublisherPHIDType::TYPECONST,
+        'default' => PhabricatorPolicies::POLICY_NOONE,
+      ),
+      PhabricatorPackagesPackageDefaultViewCapability::CAPABILITY => array(
+        'caption' => pht('Default edit policy for newly created packages.'),
+        'template' => PhabricatorPackagesPackagePHIDType::TYPECONST,
+      ),
+      PhabricatorPackagesPackageDefaultEditCapability::CAPABILITY => array(
+        'caption' => pht('Default view policy for newly created packages.'),
+        'template' => PhabricatorPackagesPackagePHIDType::TYPECONST,
+        'default' => PhabricatorPolicies::POLICY_NOONE,
+      ),
+    );
+  }
+  public function getRoutes() {
+    return array(
+      '/package/' => array(
+        '(?P<publisherKey>[^/]+)/' => array(
+          '' => 'PhabricatorPackagesPublisherViewController',
+          '(?P<packageKey>[^/]+)/' => array(
+            '' => 'PhabricatorPackagesPackageViewController',
+            '(?P<versionKey>[^/]+)/' =>
+              'PhabricatorPackagesVersionViewController',
+          ),
+        ),
+      ),
+      '/packages/' => array(
+        'publisher/' => array(
+          $this->getQueryRoutePattern() =>
+            'PhabricatorPackagesPublisherListController',
+          $this->getEditRoutePattern('edit/') =>
+            'PhabricatorPackagesPublisherEditController',
+        ),
+        'package/' => array(
+          $this->getQueryRoutePattern() =>
+            'PhabricatorPackagesPackageListController',
+          $this->getEditRoutePattern('edit/') =>
+            'PhabricatorPackagesPackageEditController',
+        ),
+        'version/' => array(
+          $this->getQueryRoutePattern() =>
+            'PhabricatorPackagesVersionListController',
+          $this->getEditRoutePattern('edit/') =>
+            'PhabricatorPackagesVersionEditController',
+        ),
+      ),
+    );
+  }
+
+}

src/applications/packages/capability/PhabricatorPackagesCreatePublisherCapability.php

@@ -0,0 +1,16 @@
+<?php
+
+final class PhabricatorPackagesCreatePublisherCapability
+  extends PhabricatorPolicyCapability {
+
+  const CAPABILITY = 'packages.publisher.create';
+
+  public function getCapabilityName() {
+    return pht('Can Create Publishers');
+  }
+
+  public function describeCapabilityRejection() {
+    return pht('You do not have permission to create publishers.');
+  }
+
+}

src/applications/packages/capability/PhabricatorPackagesPackageDefaultEditCapability.php

@@ -0,0 +1,12 @@
+<?php
+
+final class PhabricatorPackagesPackageDefaultEditCapability
+  extends PhabricatorPolicyCapability {
+
+  const CAPABILITY = 'packages.package.default.edit';
+
+  public function getCapabilityName() {
+    return pht('Default Package Edit Policy');
+  }
+
+}

src/applications/packages/capability/PhabricatorPackagesPackageDefaultViewCapability.php

@@ -0,0 +1,16 @@
+<?php
+
+final class PhabricatorPackagesPackageDefaultViewCapability
+  extends PhabricatorPolicyCapability {
+
+  const CAPABILITY = 'packages.package.default.view';
+
+  public function getCapabilityName() {
+    return pht('Default Package View Policy');
+  }
+
+  public function shouldAllowPublicPolicySetting() {
+    return true;
+  }
+
+}

src/applications/packages/capability/PhabricatorPackagesPublisherDefaultEditCapability.php

@@ -0,0 +1,12 @@
+<?php
+
+final class PhabricatorPackagesPublisherDefaultEditCapability
+  extends PhabricatorPolicyCapability {
+
+  const CAPABILITY = 'packages.publisher.default.edit';
+
+  public function getCapabilityName() {
+    return pht('Default Publisher Edit Policy');
+  }
+
+}

src/applications/packages/conduit/PhabricatorPackagesPackageEditConduitAPIMethod.php

@@ -0,0 +1,19 @@
+<?php
+
+final class PhabricatorPackagesPackageEditConduitAPIMethod
+  extends PhabricatorEditEngineAPIMethod {
+
+  public function getAPIMethodName() {
+    return 'packages.package.edit';
+  }
+
+  public function newEditEngine() {
+    return new PhabricatorPackagesPackageEditEngine();
+  }
+
+  public function getMethodSummary() {
+    return pht(
+      'Apply transactions to create a new package or edit an existing one.');
+  }
+
+}

src/applications/packages/conduit/PhabricatorPackagesPackageSearchConduitAPIMethod.php

@@ -0,0 +1,18 @@
+<?php
+
+final class PhabricatorPackagesPackageSearchConduitAPIMethod
+  extends PhabricatorSearchEngineAPIMethod {
+
+  public function getAPIMethodName() {
+    return 'packages.package.search';
+  }
+
+  public function newSearchEngine() {
+    return new PhabricatorPackagesPackageSearchEngine();
+  }
+
+  public function getMethodSummary() {
+    return pht('Read information about packages.');
+  }
+
+}

src/applications/packages/conduit/PhabricatorPackagesPublisherEditConduitAPIMethod.php

@@ -0,0 +1,19 @@
+<?php
+
+final class PhabricatorPackagesPublisherEditConduitAPIMethod
+  extends PhabricatorEditEngineAPIMethod {
+
+  public function getAPIMethodName() {
+    return 'packages.publisher.edit';
+  }
+
+  public function newEditEngine() {
+    return new PhabricatorPackagesPublisherEditEngine();
+  }
+
+  public function getMethodSummary() {
+    return pht(
+      'Apply transactions to create a new publisher or edit an existing one.');
+  }
+
+}

src/applications/packages/conduit/PhabricatorPackagesPublisherSearchConduitAPIMethod.php

@@ -0,0 +1,18 @@
+<?php
+
+final class PhabricatorPackagesPublisherSearchConduitAPIMethod
+  extends PhabricatorSearchEngineAPIMethod {
+
+  public function getAPIMethodName() {
+    return 'packages.publisher.search';
+  }
+
+  public function newSearchEngine() {
+    return new PhabricatorPackagesPublisherSearchEngine();
+  }
+
+  public function getMethodSummary() {
+    return pht('Read information about publishers.');
+  }
+
+}

src/applications/packages/conduit/PhabricatorPackagesVersionEditConduitAPIMethod.php

@@ -0,0 +1,19 @@
+<?php
+
+final class PhabricatorPackagesVersionEditConduitAPIMethod
+  extends PhabricatorEditEngineAPIMethod {
+
+  public function getAPIMethodName() {
+    return 'packages.version.edit';
+  }
+
+  public function newEditEngine() {
+    return new PhabricatorPackagesVersionEditEngine();
+  }
+
+  public function getMethodSummary() {
+    return pht(
+      'Apply transactions to create a new version or edit an existing one.');
+  }
+
+}

src/applications/packages/conduit/PhabricatorPackagesVersionSearchConduitAPIMethod.php

@@ -0,0 +1,18 @@
+<?php
+
+final class PhabricatorPackagesVersionSearchConduitAPIMethod
+  extends PhabricatorSearchEngineAPIMethod {
+
+  public function getAPIMethodName() {
+    return 'packages.version.search';
+  }
+
+  public function newSearchEngine() {
+    return new PhabricatorPackagesVersionSearchEngine();
+  }
+
+  public function getMethodSummary() {
+    return pht('Read information about versions.');
+  }
+
+}

src/applications/packages/controller/PhabricatorPackagesController.php

@@ -0,0 +1,3 @@
+<?php
+
+abstract class PhabricatorPackagesController extends PhabricatorController {}

src/applications/packages/controller/PhabricatorPackagesPackageController.php

@@ -0,0 +1,4 @@
+<?php
+
+abstract class PhabricatorPackagesPackageController
+  extends PhabricatorPackagesController {}

src/applications/packages/controller/PhabricatorPackagesPackageEditController.php

@@ -0,0 +1,12 @@
+<?php
+
+final class PhabricatorPackagesPackageEditController
+  extends PhabricatorPackagesPackageController {
+
+  public function handleRequest(AphrontRequest $request) {
+    return id(new PhabricatorPackagesPackageEditEngine())
+      ->setController($this)
+      ->buildResponse();
+  }
+
+}

src/applications/packages/controller/PhabricatorPackagesPackageListController.php

@@ -0,0 +1,26 @@
+<?php
+
+final class PhabricatorPackagesPackageListController
+  extends PhabricatorPackagesPackageController {
+
+  public function shouldAllowPublic() {
+    return true;
+  }
+
+  public function handleRequest(AphrontRequest $request) {
+    return id(new PhabricatorPackagesPackageSearchEngine())
+      ->setController($this)
+      ->buildResponse();
+  }
+
+  protected function buildApplicationCrumbs() {
+    $crumbs = parent::buildApplicationCrumbs();
+
+    id(new PhabricatorPackagesPackageEditEngine())
+      ->setViewer($this->getViewer())
+      ->addActionToCrumbs($crumbs);
+
+    return $crumbs;
+  }
+
+}

src/applications/packages/controller/PhabricatorPackagesPackageViewController.php

@@ -0,0 +1,129 @@
+<?php
+
+final class PhabricatorPackagesPackageViewController
+  extends PhabricatorPackagesPackageController {
+
+  public function shouldAllowPublic() {
+    return true;
+  }
+
+  public function handleRequest(AphrontRequest $request) {
+    $viewer = $request->getViewer();
+
+    $publisher_key = $request->getURIData('publisherKey');
+    $package_key = $request->getURIData('packageKey');
+    $full_key = $publisher_key.'/'.$package_key;
+
+    $package = id(new PhabricatorPackagesPackageQuery())
+      ->setViewer($viewer)
+      ->withFullKeys(array($full_key))
+      ->executeOne();
+    if (!$package) {
+      return new Aphront404Response();
+    }
+
+    $publisher = $package->getPublisher();
+
+    $crumbs = $this->buildApplicationCrumbs()
+      ->addTextCrumb($publisher->getName(), $publisher->getURI())
+      ->addTextCrumb($package->getName())
+      ->setBorder(true);
+
+    $header = $this->buildHeaderView($package);
+    $curtain = $this->buildCurtain($package);
+
+    $versions_view = $this->buildVersionsView($package);
+
+    $timeline = $this->buildTransactionTimeline(
+      $package,
+      new PhabricatorPackagesPackageTransactionQuery());
+    $timeline->setShouldTerminate(true);
+
+    $package_view = id(new PHUITwoColumnView())
+      ->setHeader($header)
+      ->setCurtain($curtain)
+      ->setMainColumn(
+        array(
+          $versions_view,
+          $timeline,
+        ));
+
+    return $this->newPage()
+      ->setCrumbs($crumbs)
+      ->setPageObjectPHIDs(
+        array(
+          $package->getPHID(),
+        ))
+      ->appendChild($package_view);
+  }
+
+
+  private function buildHeaderView(PhabricatorPackagesPackage $package) {
+    $viewer = $this->getViewer();
+    $name = $package->getName();
+
+    return id(new PHUIHeaderView())
+      ->setViewer($viewer)
+      ->setHeader($name)
+      ->setPolicyObject($package)
+      ->setHeaderIcon('fa-gift');
+  }
+
+  private function buildCurtain(PhabricatorPackagesPackage $package) {
+    $viewer = $this->getViewer();
+    $curtain = $this->newCurtainView($package);
+
+    $can_edit = PhabricatorPolicyFilter::hasCapability(
+      $viewer,
+      $package,
+      PhabricatorPolicyCapability::CAN_EDIT);
+
+    $id = $package->getID();
+    $edit_uri = $this->getApplicationURI("package/edit/{$id}/");
+
+    $curtain->addAction(
+      id(new PhabricatorActionView())
+        ->setName(pht('Edit Package'))
+        ->setIcon('fa-pencil')
+        ->setDisabled(!$can_edit)
+        ->setHref($edit_uri));
+
+    return $curtain;
+  }
+
+  private function buildVersionsView(PhabricatorPackagesPackage $package) {
+    $viewer = $this->getViewer();
+
+    $versions = id(new PhabricatorPackagesVersionQuery())
+      ->setViewer($viewer)
+      ->withPackagePHIDs(array($package->getPHID()))
+      ->setLimit(25)
+      ->execute();
+
+    $versions_list = id(new PhabricatorPackagesVersionListView())
+      ->setViewer($viewer)
+      ->setVersions($versions);
+
+    $all_href = urisprintf(
+      'version/?package=%s#R',
+      $package->getPHID());
+    $all_href = $this->getApplicationURI($all_href);
+
+    $view_all = id(new PHUIButtonView())
+      ->setTag('a')
+      ->setIcon('fa-search')
+      ->setText(pht('View All'))
+      ->setHref($all_href);
+
+    $header = id(new PHUIHeaderView())
+      ->setHeader(pht('Versions'))
+      ->addActionLink($view_all);
+
+    $versions_view = id(new PHUIObjectBoxView())
+      ->setHeader($header)
+      ->setBackground(PHUIObjectBoxView::BLUE_PROPERTY)
+      ->setObjectList($versions_list);
+
+    return $versions_view;
+  }
+}

src/applications/packages/controller/PhabricatorPackagesPublisherController.php

@@ -0,0 +1,4 @@
+<?php
+
+abstract class PhabricatorPackagesPublisherController
+  extends PhabricatorPackagesController {}

src/applications/packages/controller/PhabricatorPackagesPublisherEditController.php

@@ -0,0 +1,12 @@
+<?php
+
+final class PhabricatorPackagesPublisherEditController
+  extends PhabricatorPackagesPublisherController {
+
+  public function handleRequest(AphrontRequest $request) {
+    return id(new PhabricatorPackagesPublisherEditEngine())
+      ->setController($this)
+      ->buildResponse();
+  }
+
+}

src/applications/packages/controller/PhabricatorPackagesPublisherListController.php

@@ -0,0 +1,26 @@
+<?php
+
+final class PhabricatorPackagesPublisherListController
+  extends PhabricatorPackagesPublisherController {
+
+  public function shouldAllowPublic() {
+    return true;
+  }
+
+  public function handleRequest(AphrontRequest $request) {
+    return id(new PhabricatorPackagesPublisherSearchEngine())
+      ->setController($this)
+      ->buildResponse();
+  }
+
+  protected function buildApplicationCrumbs() {
+    $crumbs = parent::buildApplicationCrumbs();
+
+    id(new PhabricatorPackagesPublisherEditEngine())
+      ->setViewer($this->getViewer())
+      ->addActionToCrumbs($crumbs);
+
+    return $crumbs;
+  }
+
+}

src/applications/packages/controller/PhabricatorPackagesPublisherViewController.php

@@ -0,0 +1,127 @@
+<?php
+
+final class PhabricatorPackagesPublisherViewController
+  extends PhabricatorPackagesPublisherController {
+
+  public function shouldAllowPublic() {
+    return true;
+  }
+
+  public function handleRequest(AphrontRequest $request) {
+    $viewer = $request->getViewer();
+    $publisher_key = $request->getURIData('publisherKey');
+
+    $publisher = id(new PhabricatorPackagesPublisherQuery())
+      ->setViewer($viewer)
+      ->withPublisherKeys(array($publisher_key))
+      ->executeOne();
+    if (!$publisher) {
+      return new Aphront404Response();
+    }
+
+    $crumbs = $this->buildApplicationCrumbs()
+      ->addTextCrumb(
+        pht('Publishers'),
+        $this->getApplicationURI('publisher/'))
+      ->addTextCrumb($publisher->getName())
+      ->setBorder(true);
+
+    $header = $this->buildHeaderView($publisher);
+    $curtain = $this->buildCurtain($publisher);
+
+    $packages_view = $this->buildPackagesView($publisher);
+
+    $timeline = $this->buildTransactionTimeline(
+      $publisher,
+      new PhabricatorPackagesPublisherTransactionQuery());
+    $timeline->setShouldTerminate(true);
+
+    $publisher_view = id(new PHUITwoColumnView())
+      ->setHeader($header)
+      ->setCurtain($curtain)
+      ->setMainColumn(
+        array(
+          $packages_view,
+          $timeline,
+        ));
+
+    return $this->newPage()
+      ->setCrumbs($crumbs)
+      ->setPageObjectPHIDs(
+        array(
+          $publisher->getPHID(),
+        ))
+      ->appendChild($publisher_view);
+  }
+
+
+  private function buildHeaderView(PhabricatorPackagesPublisher $publisher) {
+    $viewer = $this->getViewer();
+    $name = $publisher->getName();
+
+    return id(new PHUIHeaderView())
+      ->setViewer($viewer)
+      ->setHeader($name)
+      ->setPolicyObject($publisher)
+      ->setHeaderIcon('fa-paw');
+  }
+
+  private function buildCurtain(PhabricatorPackagesPublisher $publisher) {
+    $viewer = $this->getViewer();
+    $curtain = $this->newCurtainView($publisher);
+
+    $can_edit = PhabricatorPolicyFilter::hasCapability(
+      $viewer,
+      $publisher,
+      PhabricatorPolicyCapability::CAN_EDIT);
+
+    $id = $publisher->getID();
+    $edit_uri = $this->getApplicationURI("publisher/edit/{$id}/");
+
+    $curtain->addAction(
+      id(new PhabricatorActionView())
+        ->setName(pht('Edit Publisher'))
+        ->setIcon('fa-pencil')
+        ->setDisabled(!$can_edit)
+        ->setHref($edit_uri));
+
+    return $curtain;
+  }
+
+  private function buildPackagesView(PhabricatorPackagesPublisher $publisher) {
+    $viewer = $this->getViewer();
+
+    $packages = id(new PhabricatorPackagesPackageQuery())
+      ->setViewer($viewer)
+      ->withPublisherPHIDs(array($publisher->getPHID()))
+      ->setLimit(25)
+      ->execute();
+
+    $packages_list = id(new PhabricatorPackagesPackageListView())
+      ->setViewer($viewer)
+      ->setPackages($packages);
+
+    $all_href = urisprintf(
+      'package/?publisher=%s#R',
+      $publisher->getPHID());
+    $all_href = $this->getApplicationURI($all_href);
+
+    $view_all = id(new PHUIButtonView())
+      ->setTag('a')
+      ->setIcon('fa-search')
+      ->setText(pht('View All'))
+      ->setHref($all_href);
+
+    $header = id(new PHUIHeaderView())
+      ->setHeader(pht('Packages'))
+      ->addActionLink($view_all);
+
+    $packages_view = id(new PHUIObjectBoxView())
+      ->setHeader($header)
+      ->setBackground(PHUIObjectBoxView::BLUE_PROPERTY)
+      ->setObjectList($packages_list);
+
+    return $packages_view;
+  }
+
+}

src/applications/packages/controller/PhabricatorPackagesVersionController.php

@@ -0,0 +1,4 @@
+<?php
+
+abstract class PhabricatorPackagesVersionController
+  extends PhabricatorPackagesController {}

src/applications/packages/controller/PhabricatorPackagesVersionEditController.php

@@ -0,0 +1,12 @@
+<?php
+
+final class PhabricatorPackagesVersionEditController
+  extends PhabricatorPackagesVersionController {
+
+  public function handleRequest(AphrontRequest $request) {
+    return id(new PhabricatorPackagesVersionEditEngine())
+      ->setController($this)
+      ->buildResponse();
+  }
+
+}

src/applications/packages/controller/PhabricatorPackagesVersionListController.php

@@ -0,0 +1,26 @@
+<?php
+
+final class PhabricatorPackagesVersionListController
+  extends PhabricatorPackagesVersionController {
+
+  public function shouldAllowPublic() {
+    return true;
+  }
+
+  public function handleRequest(AphrontRequest $request) {
+    return id(new PhabricatorPackagesVersionSearchEngine())
+      ->setController($this)
+      ->buildResponse();
+  }
+
+  protected function buildApplicationCrumbs() {
+    $crumbs = parent::buildApplicationCrumbs();
+
+    id(new PhabricatorPackagesVersionEditEngine())
+      ->setViewer($this->getViewer())
+      ->addActionToCrumbs($crumbs);
+
+    return $crumbs;
+  }
+
+}

src/applications/packages/controller/PhabricatorPackagesVersionViewController.php

@@ -0,0 +1,92 @@
+<?php
+
+final class PhabricatorPackagesVersionViewController
+  extends PhabricatorPackagesVersionController {
+
+  public function shouldAllowPublic() {
+    return true;
+  }
+
+  public function handleRequest(AphrontRequest $request) {
+    $viewer = $request->getViewer();
+
+    $publisher_key = $request->getURIData('publisherKey');
+    $package_key = $request->getURIData('packageKey');
+    $full_key = $publisher_key.'/'.$package_key;
+    $version_key = $request->getURIData('versionKey');
+
+    $version = id(new PhabricatorPackagesVersionQuery())
+      ->setViewer($viewer)
+      ->withFullKeys(array($full_key))
+      ->withNames(array($version_key))
+      ->executeOne();
+    if (!$version) {
+      return new Aphront404Response();
+    }
+
+    $package = $version->getPackage();
+    $publisher = $package->getPublisher();
+
+    $crumbs = $this->buildApplicationCrumbs()
+      ->addTextCrumb($publisher->getName(), $publisher->getURI())
+      ->addTextCrumb($package->getName(), $package->getURI())
+      ->addTextCrumb($version->getName())
+      ->setBorder(true);
+
+    $header = $this->buildHeaderView($version);
+    $curtain = $this->buildCurtain($version);
+
+    $timeline = $this->buildTransactionTimeline(
+      $version,
+      new PhabricatorPackagesVersionTransactionQuery());
+    $timeline->setShouldTerminate(true);
+
+    $version_view = id(new PHUITwoColumnView())
+      ->setHeader($header)
+      ->setCurtain($curtain)
+      ->setMainColumn($timeline);
+
+    return $this->newPage()
+      ->setCrumbs($crumbs)
+      ->setPageObjectPHIDs(
+        array(
+          $version->getPHID(),
+        ))
+      ->appendChild($version_view);
+  }
+
+
+  private function buildHeaderView(PhabricatorPackagesVersion $version) {
+    $viewer = $this->getViewer();
+    $name = $version->getName();
+
+    return id(new PHUIHeaderView())
+      ->setViewer($viewer)
+      ->setHeader($name)
+      ->setPolicyObject($version)
+      ->setHeaderIcon('fa-tag');
+  }
+
+  private function buildCurtain(PhabricatorPackagesVersion $version) {
+    $viewer = $this->getViewer();
+    $curtain = $this->newCurtainView($version);
+
+    $can_edit = PhabricatorPolicyFilter::hasCapability(
+      $viewer,
+      $version,
+      PhabricatorPolicyCapability::CAN_EDIT);
+
+    $id = $version->getID();
+    $edit_uri = $this->getApplicationURI("version/edit/{$id}/");
+
+    $curtain->addAction(
+      id(new PhabricatorActionView())
+        ->setName(pht('Edit Version'))
+        ->setIcon('fa-pencil')
+        ->setDisabled(!$can_edit)
+        ->setHref($edit_uri));
+
+    return $curtain;
+  }
+
+}

src/applications/packages/editor/PhabricatorPackagesEditEngine.php

@@ -0,0 +1,14 @@
+<?php
+
+abstract class PhabricatorPackagesEditEngine
+  extends PhabricatorEditEngine {
+
+  public function isEngineConfigurable() {
+    return false;
+  }
+
+  public function getEngineApplicationClass() {
+    return 'PhabricatorPackagesApplication';
+  }
+
+}