Modularize Dashboard transactions

Summary:
Depends on D20399. Ref T13272. I'm moving toward fixing all the "moving panels around on Dashboards breaks the entire world" problems.

On the way there, modularize Dashboard transactions.

Test Plan:
  - Created a new Dashboard.
  - Edited all fiedls of a dashboard.
  - Archived/restored a dashboard.

Reviewers: amckinley

Reviewed By: amckinley

Maniphest Tasks: T13272

Differential Revision: https://secure.phabricator.com/D20402

src/__phutil_library_map__.php

@@ -2920,12 +2920,15 @@ phutil_register_library_map(array(
     'PhabricatorDashboardFavoritesInstallWorkflow' => 'applications/dashboard/install/PhabricatorDashboardFavoritesInstallWorkflow.php',
     'PhabricatorDashboardHomeInstallWorkflow' => 'applications/dashboard/install/PhabricatorDashboardHomeInstallWorkflow.php',
     'PhabricatorDashboardIconSet' => 'applications/dashboard/icon/PhabricatorDashboardIconSet.php',
+    'PhabricatorDashboardIconTransaction' => 'applications/dashboard/xaction/dashboard/PhabricatorDashboardIconTransaction.php',
     'PhabricatorDashboardInstall' => 'applications/dashboard/storage/PhabricatorDashboardInstall.php',
     'PhabricatorDashboardInstallController' => 'applications/dashboard/controller/dashboard/PhabricatorDashboardInstallController.php',
     'PhabricatorDashboardInstallWorkflow' => 'applications/dashboard/install/PhabricatorDashboardInstallWorkflow.php',
     'PhabricatorDashboardLayoutConfig' => 'applications/dashboard/layoutconfig/PhabricatorDashboardLayoutConfig.php',
+    'PhabricatorDashboardLayoutTransaction' => 'applications/dashboard/xaction/dashboard/PhabricatorDashboardLayoutTransaction.php',
     'PhabricatorDashboardListController' => 'applications/dashboard/controller/PhabricatorDashboardListController.php',
     'PhabricatorDashboardMovePanelController' => 'applications/dashboard/controller/PhabricatorDashboardMovePanelController.php',
+    'PhabricatorDashboardNameTransaction' => 'applications/dashboard/xaction/dashboard/PhabricatorDashboardNameTransaction.php',
     'PhabricatorDashboardNgrams' => 'applications/dashboard/storage/PhabricatorDashboardNgrams.php',
     'PhabricatorDashboardObjectInstallWorkflow' => 'applications/dashboard/install/PhabricatorDashboardObjectInstallWorkflow.php',
     'PhabricatorDashboardPanel' => 'applications/dashboard/storage/PhabricatorDashboardPanel.php',
@@ -2993,6 +2996,7 @@ phutil_register_library_map(array(
     'PhabricatorDashboardRenderingEngine' => 'applications/dashboard/engine/PhabricatorDashboardRenderingEngine.php',
     'PhabricatorDashboardSchemaSpec' => 'applications/dashboard/storage/PhabricatorDashboardSchemaSpec.php',
     'PhabricatorDashboardSearchEngine' => 'applications/dashboard/query/PhabricatorDashboardSearchEngine.php',
+    'PhabricatorDashboardStatusTransaction' => 'applications/dashboard/xaction/dashboard/PhabricatorDashboardStatusTransaction.php',
     'PhabricatorDashboardTabsPanelTabsTransaction' => 'applications/dashboard/xaction/panel/PhabricatorDashboardTabsPanelTabsTransaction.php',
     'PhabricatorDashboardTabsPanelType' => 'applications/dashboard/paneltype/PhabricatorDashboardTabsPanelType.php',
     'PhabricatorDashboardTextPanelTextTransaction' => 'applications/dashboard/xaction/panel/PhabricatorDashboardTextPanelTextTransaction.php',
@@ -3000,6 +3004,7 @@ phutil_register_library_map(array(
     'PhabricatorDashboardTransaction' => 'applications/dashboard/storage/PhabricatorDashboardTransaction.php',
     'PhabricatorDashboardTransactionEditor' => 'applications/dashboard/editor/PhabricatorDashboardTransactionEditor.php',
     'PhabricatorDashboardTransactionQuery' => 'applications/dashboard/query/PhabricatorDashboardTransactionQuery.php',
+    'PhabricatorDashboardTransactionType' => 'applications/dashboard/xaction/dashboard/PhabricatorDashboardTransactionType.php',
     'PhabricatorDashboardViewController' => 'applications/dashboard/controller/dashboard/PhabricatorDashboardViewController.php',
     'PhabricatorDataCacheSpec' => 'applications/cache/spec/PhabricatorDataCacheSpec.php',
     'PhabricatorDataNotAttachedException' => 'infrastructure/storage/lisk/PhabricatorDataNotAttachedException.php',
@@ -8908,12 +8913,15 @@ phutil_register_library_map(array(
     'PhabricatorDashboardFavoritesInstallWorkflow' => 'PhabricatorDashboardApplicationInstallWorkflow',
     'PhabricatorDashboardHomeInstallWorkflow' => 'PhabricatorDashboardApplicationInstallWorkflow',
     'PhabricatorDashboardIconSet' => 'PhabricatorIconSet',
+    'PhabricatorDashboardIconTransaction' => 'PhabricatorDashboardTransactionType',
     'PhabricatorDashboardInstall' => 'PhabricatorDashboardDAO',
     'PhabricatorDashboardInstallController' => 'PhabricatorDashboardController',
     'PhabricatorDashboardInstallWorkflow' => 'Phobject',
     'PhabricatorDashboardLayoutConfig' => 'Phobject',
+    'PhabricatorDashboardLayoutTransaction' => 'PhabricatorDashboardTransactionType',
     'PhabricatorDashboardListController' => 'PhabricatorDashboardController',
     'PhabricatorDashboardMovePanelController' => 'PhabricatorDashboardController',
+    'PhabricatorDashboardNameTransaction' => 'PhabricatorDashboardTransactionType',
     'PhabricatorDashboardNgrams' => 'PhabricatorSearchNgrams',
     'PhabricatorDashboardObjectInstallWorkflow' => 'PhabricatorDashboardInstallWorkflow',
     'PhabricatorDashboardPanel' => array(
@@ -8996,13 +9004,15 @@ phutil_register_library_map(array(
     'PhabricatorDashboardRenderingEngine' => 'Phobject',
     'PhabricatorDashboardSchemaSpec' => 'PhabricatorConfigSchemaSpec',
     'PhabricatorDashboardSearchEngine' => 'PhabricatorApplicationSearchEngine',
+    'PhabricatorDashboardStatusTransaction' => 'PhabricatorDashboardTransactionType',
     'PhabricatorDashboardTabsPanelTabsTransaction' => 'PhabricatorDashboardPanelPropertyTransaction',
     'PhabricatorDashboardTabsPanelType' => 'PhabricatorDashboardPanelType',
     'PhabricatorDashboardTextPanelTextTransaction' => 'PhabricatorDashboardPanelPropertyTransaction',
     'PhabricatorDashboardTextPanelType' => 'PhabricatorDashboardPanelType',
-    'PhabricatorDashboardTransaction' => 'PhabricatorApplicationTransaction',
+    'PhabricatorDashboardTransaction' => 'PhabricatorModularTransaction',
     'PhabricatorDashboardTransactionEditor' => 'PhabricatorApplicationTransactionEditor',
     'PhabricatorDashboardTransactionQuery' => 'PhabricatorApplicationTransactionQuery',
+    'PhabricatorDashboardTransactionType' => 'PhabricatorModularTransactionType',
     'PhabricatorDashboardViewController' => 'PhabricatorDashboardProfileController',
     'PhabricatorDataCacheSpec' => 'PhabricatorCacheSpec',
     'PhabricatorDataNotAttachedException' => 'Exception',

src/applications/dashboard/controller/dashboard/PhabricatorDashboardArchiveController.php

@@ -32,7 +32,8 @@ final class PhabricatorDashboardArchiveController
       $xactions = array();
 
       $xactions[] = id(new PhabricatorDashboardTransaction())
-        ->setTransactionType(PhabricatorDashboardTransaction::TYPE_STATUS)
+        ->setTransactionType(
+          PhabricatorDashboardStatusTransaction::TRANSACTIONTYPE)
         ->setNewValue($new_status);
 
       id(new PhabricatorDashboardTransactionEditor())

src/applications/dashboard/controller/dashboard/PhabricatorDashboardEditController.php

@@ -54,7 +54,7 @@ final class PhabricatorDashboardEditController
 
     $v_name = $dashboard->getName();
     $v_icon = $dashboard->getIcon();
-    $v_layout_mode = $dashboard->getLayoutConfigObject()->getLayoutMode();
+    $v_layout_mode = $dashboard->getRawLayoutMode();
     $e_name = true;
 
     $validation_exception = null;
@@ -68,9 +68,10 @@ final class PhabricatorDashboardEditController
 
       $xactions = array();
 
-      $type_name = PhabricatorDashboardTransaction::TYPE_NAME;
+      $type_name = PhabricatorDashboardNameTransaction::TRANSACTIONTYPE;
-      $type_icon = PhabricatorDashboardTransaction::TYPE_ICON;
+      $type_icon = PhabricatorDashboardIconTransaction::TRANSACTIONTYPE;
-      $type_layout_mode = PhabricatorDashboardTransaction::TYPE_LAYOUT_MODE;
+      $type_layout_mode =
+        PhabricatorDashboardLayoutTransaction::TRANSACTIONTYPE;
       $type_view_policy = PhabricatorTransactions::TYPE_VIEW_POLICY;
       $type_edit_policy = PhabricatorTransactions::TYPE_EDIT_POLICY;
 
@@ -184,31 +185,4 @@ final class PhabricatorDashboardEditController
       ->appendChild($view);
   }
 
-  private function newPanel(
-    AphrontRequest $request,
-    PhabricatorUser $viewer,
-    $type,
-    $name,
-    array $properties) {
-
-    $panel = PhabricatorDashboardPanel::initializeNewPanel($viewer)
-      ->setPanelType($type)
-      ->setProperties($properties);
-
-    $xactions = array();
-
-    $xactions[] = id(new PhabricatorDashboardPanelTransaction())
-      ->setTransactionType(
-        PhabricatorDashboardPanelNameTransaction::TRANSACTIONTYPE)
-      ->setNewValue($name);
-
-    $editor = id(new PhabricatorDashboardPanelTransactionEditor())
-      ->setActor($viewer)
-      ->setContinueOnNoEffect(true)
-      ->setContentSourceFromRequest($request)
-      ->applyTransactions($panel, $xactions);
-
-    return $panel;
-  }
-
 }

src/applications/dashboard/editor/PhabricatorDashboardTransactionEditor.php

@@ -50,134 +50,9 @@ final class PhabricatorDashboardTransactionEditor
     $types[] = PhabricatorTransactions::TYPE_EDIT_POLICY;
     $types[] = PhabricatorTransactions::TYPE_EDGE;
 
-    $types[] = PhabricatorDashboardTransaction::TYPE_NAME;
-    $types[] = PhabricatorDashboardTransaction::TYPE_ICON;
-    $types[] = PhabricatorDashboardTransaction::TYPE_STATUS;
-    $types[] = PhabricatorDashboardTransaction::TYPE_LAYOUT_MODE;
-
     return $types;
   }
 
-  protected function getCustomTransactionOldValue(
-    PhabricatorLiskDAO $object,
-    PhabricatorApplicationTransaction $xaction) {
-    switch ($xaction->getTransactionType()) {
-      case PhabricatorDashboardTransaction::TYPE_NAME:
-        if ($this->getIsNewObject()) {
-          return null;
-        }
-        return $object->getName();
-      case PhabricatorDashboardTransaction::TYPE_ICON:
-        if ($this->getIsNewObject()) {
-          return null;
-        }
-        return $object->getIcon();
-      case PhabricatorDashboardTransaction::TYPE_STATUS:
-        if ($this->getIsNewObject()) {
-          return null;
-        }
-        return $object->getStatus();
-      case PhabricatorDashboardTransaction::TYPE_LAYOUT_MODE:
-        if ($this->getIsNewObject()) {
-          return null;
-        }
-        $layout_config = $object->getLayoutConfigObject();
-        return $layout_config->getLayoutMode();
-    }
-
-    return parent::getCustomTransactionOldValue($object, $xaction);
-  }
-
-  protected function getCustomTransactionNewValue(
-    PhabricatorLiskDAO $object,
-    PhabricatorApplicationTransaction $xaction) {
-    switch ($xaction->getTransactionType()) {
-      case PhabricatorDashboardTransaction::TYPE_NAME:
-      case PhabricatorDashboardTransaction::TYPE_ICON:
-      case PhabricatorDashboardTransaction::TYPE_STATUS:
-      case PhabricatorDashboardTransaction::TYPE_LAYOUT_MODE:
-        return $xaction->getNewValue();
-    }
-    return parent::getCustomTransactionNewValue($object, $xaction);
-  }
-
-  protected function applyCustomInternalTransaction(
-    PhabricatorLiskDAO $object,
-    PhabricatorApplicationTransaction $xaction) {
-    switch ($xaction->getTransactionType()) {
-      case PhabricatorDashboardTransaction::TYPE_NAME:
-        $object->setName($xaction->getNewValue());
-        return;
-      case PhabricatorDashboardTransaction::TYPE_ICON:
-        $object->setIcon($xaction->getNewValue());
-        return;
-      case PhabricatorDashboardTransaction::TYPE_STATUS:
-        $object->setStatus($xaction->getNewValue());
-        return;
-      case PhabricatorDashboardTransaction::TYPE_LAYOUT_MODE:
-        $old_layout = $object->getLayoutConfigObject();
-        $new_layout = clone $old_layout;
-        $new_layout->setLayoutMode($xaction->getNewValue());
-        if ($old_layout->isMultiColumnLayout() !=
-            $new_layout->isMultiColumnLayout()) {
-          $panel_phids = $object->getPanelPHIDs();
-          $new_locations = $new_layout->getDefaultPanelLocations();
-          foreach ($panel_phids as $panel_phid) {
-            $new_locations[0][] = $panel_phid;
-          }
-          $new_layout->setPanelLocations($new_locations);
-        }
-        $object->setLayoutConfigFromObject($new_layout);
-        return;
-    }
-
-    return parent::applyCustomInternalTransaction($object, $xaction);
-  }
-
-  protected function applyCustomExternalTransaction(
-    PhabricatorLiskDAO $object,
-    PhabricatorApplicationTransaction $xaction) {
-
-    switch ($xaction->getTransactionType()) {
-      case PhabricatorDashboardTransaction::TYPE_NAME:
-      case PhabricatorDashboardTransaction::TYPE_ICON:
-      case PhabricatorDashboardTransaction::TYPE_STATUS:
-      case PhabricatorDashboardTransaction::TYPE_LAYOUT_MODE:
-        return;
-    }
-
-    return parent::applyCustomExternalTransaction($object, $xaction);
-  }
-
-  protected function validateTransaction(
-    PhabricatorLiskDAO $object,
-    $type,
-    array $xactions) {
-
-    $errors = parent::validateTransaction($object, $type, $xactions);
-
-    switch ($type) {
-      case PhabricatorDashboardTransaction::TYPE_NAME:
-        $missing = $this->validateIsEmptyTextField(
-          $object->getName(),
-          $xactions);
-
-        if ($missing) {
-          $error = new PhabricatorApplicationTransactionValidationError(
-            $type,
-            pht('Required'),
-            pht('Dashboard name is required.'),
-            nonempty(last($xactions), null));
-
-          $error->setIsMissingFieldError(true);
-          $errors[] = $error;
-        }
-        break;
-    }
-
-    return $errors;
-  }
-
   protected function supportsSearch() {
     return true;
   }

src/applications/dashboard/layoutconfig/PhabricatorDashboardLayoutConfig.php

@@ -107,33 +107,6 @@ final class PhabricatorDashboardLayoutConfig extends Phobject {
     return $class;
   }
 
-  public function isMultiColumnLayout() {
-    return $this->getLayoutMode() != self::MODE_FULL;
-  }
-
-  public function getColumnSelectOptions() {
-    $options = array();
-
-    switch ($this->getLayoutMode()) {
-      case self::MODE_HALF_AND_HALF:
-      case self::MODE_THIRD_AND_THIRDS:
-      case self::MODE_THIRDS_AND_THIRD:
-        return array(
-          0 => pht('Left'),
-          1 => pht('Right'),
-        );
-        break;
-      case self::MODE_FULL:
-        throw new Exception(pht('There is only one column in mode full.'));
-        break;
-      default:
-        throw new Exception(pht('Unknown layout mode!'));
-        break;
-    }
-
-    return $options;
-  }
-
   public static function getLayoutModeSelectOptions() {
     return array(
       self::MODE_FULL             => pht('One full-width column'),

src/applications/dashboard/storage/PhabricatorDashboard.php

@@ -68,6 +68,27 @@ final class PhabricatorDashboard extends PhabricatorDashboardDAO
       PhabricatorDashboardDashboardPHIDType::TYPECONST);
   }
 
+  public function getRawLayoutMode() {
+    $config = $this->getRawLayoutConfig();
+    return idx($config, 'layoutMode');
+  }
+
+  public function setRawLayoutMode($mode) {
+    $config = $this->getRawLayoutConfig();
+    $config['layoutMode'] = $mode;
+    return $this->setLayoutConfig($config);
+  }
+
+  private function getRawLayoutConfig() {
+    $config = $this->getLayoutConfig();
+
+    if (!is_array($config)) {
+      $config = array();
+    }
+
+    return $config;
+  }
+
   public function getLayoutConfigObject() {
     return PhabricatorDashboardLayoutConfig::newFromDictionary(
       $this->getLayoutConfig());

src/applications/dashboard/storage/PhabricatorDashboardTransaction.php

@@ -1,12 +1,7 @@
 <?php
 
 final class PhabricatorDashboardTransaction
-  extends PhabricatorApplicationTransaction {
+  extends PhabricatorModularTransaction {
-
-  const TYPE_NAME = 'dashboard:name';
-  const TYPE_ICON = 'dashboard:icon';
-  const TYPE_STATUS = 'dashboard:status';
-  const TYPE_LAYOUT_MODE = 'dashboard:layoutmode';
 
   public function getApplicationName() {
     return 'dashboard';
@@ -16,170 +11,8 @@ final class PhabricatorDashboardTransaction
     return PhabricatorDashboardDashboardPHIDType::TYPECONST;
   }
 
-  public function getTitle() {
+  public function getBaseTransactionClass() {
-    $author_phid = $this->getAuthorPHID();
+    return 'PhabricatorDashboardTransactionType';
-    $object_phid = $this->getObjectPHID();
-
-    $old = $this->getOldValue();
-    $new = $this->getNewValue();
-
-    $author_link = $this->renderHandleLink($author_phid);
-
-    $type = $this->getTransactionType();
-    switch ($type) {
-      case self::TYPE_NAME:
-        if (!strlen($old)) {
-          return pht(
-            '%s created this dashboard.',
-            $author_link);
-        } else {
-          return pht(
-            '%s renamed this dashboard from "%s" to "%s".',
-            $author_link,
-            $old,
-            $new);
-        }
-        break;
-      case self::TYPE_ICON:
-        if (!strlen($old)) {
-          return pht(
-            '%s set the dashboard icon.',
-            $author_link);
-        } else {
-          return pht(
-            '%s changed this dashboard icon from "%s" to "%s".',
-            $author_link,
-            $old,
-            $new);
-        }
-        break;
-      case self::TYPE_STATUS:
-        if ($new == PhabricatorDashboard::STATUS_ACTIVE) {
-          return pht(
-            '%s activated this dashboard.',
-            $author_link);
-        } else {
-          return pht(
-            '%s archived this dashboard.',
-            $author_link);
-        }
-        break;
-    }
-
-    return parent::getTitle();
   }
 
-  public function getTitleForFeed() {
-    $author_phid = $this->getAuthorPHID();
-    $object_phid = $this->getObjectPHID();
-
-    $old = $this->getOldValue();
-    $new = $this->getNewValue();
-
-    $author_link = $this->renderHandleLink($author_phid);
-    $object_link = $this->renderHandleLink($object_phid);
-
-    $type = $this->getTransactionType();
-    switch ($type) {
-      case self::TYPE_NAME:
-        if (!strlen($old)) {
-          return pht(
-            '%s created dashboard %s.',
-            $author_link,
-            $object_link);
-        } else {
-          return pht(
-            '%s renamed dashboard %s from "%s" to "%s".',
-            $author_link,
-            $object_link,
-            $old,
-            $new);
-        }
-        break;
-      case self::TYPE_ICON:
-        if (!strlen($old)) {
-          return pht(
-            '%s set dashboard icon for %s.',
-            $author_link,
-            $object_link);
-        } else {
-          return pht(
-            '%s set the dashboard icon on %s from "%s" to "%s".',
-            $author_link,
-            $object_link,
-            $old,
-            $new);
-        }
-        break;
-      case self::TYPE_STATUS:
-        if ($new == PhabricatorDashboard::STATUS_ACTIVE) {
-          return pht(
-            '%s activated dashboard %s.',
-            $author_link,
-            $object_link);
-        } else {
-          return pht(
-            '%s archived dashboard %s.',
-            $author_link,
-            $object_link);
-        }
-        break;
-    }
-
-    return parent::getTitleForFeed();
-  }
-
-  public function getColor() {
-    $old = $this->getOldValue();
-    $new = $this->getNewValue();
-
-    switch ($this->getTransactionType()) {
-      case self::TYPE_NAME:
-        if (!strlen($old)) {
-          return PhabricatorTransactions::COLOR_GREEN;
-        }
-        break;
-      case self::TYPE_STATUS:
-        if ($new == PhabricatorDashboard::STATUS_ACTIVE) {
-          return PhabricatorTransactions::COLOR_GREEN;
-        } else {
-          return PhabricatorTransactions::COLOR_INDIGO;
-        }
-        break;
-    }
-
-    return parent::getColor();
-  }
-
-  public function getIcon() {
-    $new = $this->getNewValue();
-
-    switch ($this->getTransactionType()) {
-      case self::TYPE_NAME:
-        return 'fa-pencil';
-        break;
-      case self::TYPE_STATUS:
-        if ($new == PhabricatorDashboard::STATUS_ACTIVE) {
-          return 'fa-check';
-        } else {
-          return 'fa-ban';
-        }
-        break;
-      case self::TYPE_LAYOUT_MODE:
-        return 'fa-columns';
-        break;
-    }
-    return parent::getIcon();
-  }
-
-  public function shouldHide() {
-    $old = $this->getOldValue();
-    $new = $this->getNewValue();
-
-    switch ($this->getTransactionType()) {
-      case self::TYPE_LAYOUT_MODE:
-        return true;
-    }
-    return parent::shouldHide();
-  }
 }

src/applications/dashboard/xaction/dashboard/PhabricatorDashboardIconTransaction.php

@@ -0,0 +1,27 @@
+<?php
+
+final class PhabricatorDashboardIconTransaction
+  extends PhabricatorDashboardTransactionType {
+
+  const TRANSACTIONTYPE = 'dashboard:icon';
+
+  public function generateOldValue($object) {
+    return $object->getIcon();
+  }
+
+  public function applyInternalEffects($object, $value) {
+    $object->setIcon($value);
+  }
+
+  public function getTitle() {
+    $old = $this->getOldValue();
+    $new = $this->getNewValue();
+
+    return pht(
+      '%s changed the icon for this dashboard from %s to %s.',
+      $this->renderAuthor(),
+      $this->renderOldValue(),
+      $this->renderNewValue());
+  }
+
+}

src/applications/dashboard/xaction/dashboard/PhabricatorDashboardLayoutTransaction.php

@@ -0,0 +1,55 @@
+<?php
+
+final class PhabricatorDashboardLayoutTransaction
+  extends PhabricatorDashboardTransactionType {
+
+  const TRANSACTIONTYPE = 'dashboard:layoutmode';
+
+  public function generateOldValue($object) {
+    return $object->getRawLayoutMode();
+  }
+
+  public function applyInternalEffects($object, $value) {
+    $object->setRawLayoutMode($value);
+  }
+
+  public function getTitle() {
+    $new = $this->getNewValue();
+
+    return pht(
+      '%s changed the layout mode for this dashboard from %s to %s.',
+      $this->renderAuthor(),
+      $this->renderOldValue(),
+      $this->renderNewValue());
+  }
+
+  public function validateTransactions($object, array $xactions) {
+    $errors = array();
+
+    $mode_map = PhabricatorDashboardLayoutConfig::getLayoutModeSelectOptions();
+
+    $old_value = $object->getRawLayoutMode();
+    foreach ($xactions as $xaction) {
+      $new_value = $xaction->getNewValue();
+
+      if ($new_value === $old_value) {
+        continue;
+      }
+
+      if (!isset($mode_map[$new_value])) {
+        $errors[] = $this->newInvalidError(
+          pht(
+            'Layout mode "%s" is not valid. Supported layout modes '.
+            'are: %s.',
+            $new_value,
+            implode(', ', array_keys($mode_map))),
+          $xaction);
+        continue;
+      }
+    }
+
+    return $errors;
+  }
+
+
+}

src/applications/dashboard/xaction/dashboard/PhabricatorDashboardNameTransaction.php

@@ -0,0 +1,70 @@
+<?php
+
+final class PhabricatorDashboardNameTransaction
+  extends PhabricatorDashboardTransactionType {
+
+  const TRANSACTIONTYPE = 'dashboard:name';
+
+  public function generateOldValue($object) {
+    return $object->getName();
+  }
+
+  public function applyInternalEffects($object, $value) {
+    $object->setName($value);
+  }
+
+  public function getTitle() {
+    $old = $this->getOldValue();
+    $new = $this->getNewValue();
+
+    return pht(
+      '%s renamed this dashboard from %s to %s.',
+      $this->renderAuthor(),
+      $this->renderOldValue(),
+      $this->renderNewValue());
+  }
+
+  public function validateTransactions($object, array $xactions) {
+    $errors = array();
+
+    $max_length = $object->getColumnMaximumByteLength('name');
+    foreach ($xactions as $xaction) {
+      $new = $xaction->getNewValue();
+      if (!strlen($new)) {
+        $errors[] = $this->newInvalidError(
+          pht('Dashboards must have a name.'),
+          $xaction);
+        continue;
+      }
+
+      if (strlen($new) > $max_length) {
+        $errors[] = $this->newInvalidError(
+          pht(
+            'Dashboard names must not be longer than %s characters.',
+            $max_length));
+        continue;
+      }
+    }
+
+    if (!$errors) {
+      if ($this->isEmptyTextTransaction($object->getName(), $xactions)) {
+        $errors[] = $this->newRequiredError(
+          pht('Dashboards must have a name.'));
+      }
+    }
+
+    return $errors;
+  }
+
+  public function getTransactionTypeForConduit($xaction) {
+    return 'name';
+  }
+
+  public function getFieldValuesForConduit($xaction, $data) {
+    return array(
+      'old' => $xaction->getOldValue(),
+      'new' => $xaction->getNewValue(),
+    );
+  }
+
+}

src/applications/dashboard/xaction/dashboard/PhabricatorDashboardStatusTransaction.php

@@ -0,0 +1,59 @@
+<?php
+
+final class PhabricatorDashboardStatusTransaction
+  extends PhabricatorDashboardTransactionType {
+
+  const TRANSACTIONTYPE = 'dashboard:status';
+
+  public function generateOldValue($object) {
+    return $object->getStatus();
+  }
+
+  public function applyInternalEffects($object, $value) {
+    $object->setStatus($value);
+  }
+
+  public function getTitle() {
+    $new = $this->getNewValue();
+
+    switch ($new) {
+      case PhabricatorDashboard::STATUS_ACTIVE:
+        return pht(
+          '%s activated this dashboard.',
+          $this->renderAuthor());
+      case PhabricatorDashboard::STATUS_ARCHIVED:
+        return pht(
+          '%s archived this dashboard.',
+          $this->renderAuthor());
+    }
+  }
+
+  public function validateTransactions($object, array $xactions) {
+    $errors = array();
+
+    $valid_statuses = PhabricatorDashboard::getStatusNameMap();
+
+    $old_value = $object->getStatus();
+    foreach ($xactions as $xaction) {
+      $new_value = $xaction->getNewValue();
+
+      if ($new_value === $old_value) {
+        continue;
+      }
+
+      if (!isset($valid_statuses[$new_value])) {
+        $errors[] = $this->newInvalidError(
+          pht(
+            'Status "%s" is not valid. Supported status constants are: %s.',
+            $new_value,
+            implode(', ', array_keys($valid_statuses))),
+          $xaction);
+        continue;
+      }
+    }
+
+    return $errors;
+  }
+
+
+}

src/applications/dashboard/xaction/dashboard/PhabricatorDashboardTransactionType.php

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