Maniphest - upgrade merging to real transactions

Summary: see title. Ref T5875.

Test Plan: Merged one task into another task - verified transactions on both tasks. Merged two tasks into another task - verified transactions on all three tasks. Checked out my feed and saw MERGE_INTO stories and MERGE_FROM stories.

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: epriestley, Korvin

Maniphest Tasks: T5875

Differential Revision: https://secure.phabricator.com/D10427

src/applications/maniphest/editor/ManiphestTransactionEditor.php

@@ -26,6 +26,8 @@ final class ManiphestTransactionEditor
     $types[] = ManiphestTransaction::TYPE_CCS;
     $types[] = ManiphestTransaction::TYPE_SUBPRIORITY;
     $types[] = ManiphestTransaction::TYPE_PROJECT_COLUMN;
+    $types[] = ManiphestTransaction::TYPE_MERGED_INTO;
+    $types[] = ManiphestTransaction::TYPE_MERGED_FROM;
     $types[] = ManiphestTransaction::TYPE_UNBLOCK;
     $types[] = PhabricatorTransactions::TYPE_VIEW_POLICY;
     $types[] = PhabricatorTransactions::TYPE_EDIT_POLICY;
@@ -67,6 +69,9 @@ final class ManiphestTransactionEditor
         return $xaction->getOldValue();
       case ManiphestTransaction::TYPE_SUBPRIORITY:
         return $object->getSubpriority();
+      case ManiphestTransaction::TYPE_MERGED_INTO:
+      case ManiphestTransaction::TYPE_MERGED_FROM:
+        return null;
     }
   }
 
@@ -86,6 +91,8 @@ final class ManiphestTransactionEditor
       case ManiphestTransaction::TYPE_DESCRIPTION:
       case ManiphestTransaction::TYPE_SUBPRIORITY:
       case ManiphestTransaction::TYPE_PROJECT_COLUMN:
+      case ManiphestTransaction::TYPE_MERGED_INTO:
+      case ManiphestTransaction::TYPE_MERGED_FROM:
       case ManiphestTransaction::TYPE_UNBLOCK:
         return $xaction->getNewValue();
     }
@@ -161,6 +168,11 @@ final class ManiphestTransactionEditor
       case ManiphestTransaction::TYPE_PROJECT_COLUMN:
         // these do external (edge) updates
         return;
+      case ManiphestTransaction::TYPE_MERGED_INTO:
+        $object->setStatus(ManiphestTaskStatus::getDuplicateStatus());
+        return;
+      case ManiphestTransaction::TYPE_MERGED_FROM:
+        return;
     }
   }
 

src/applications/maniphest/storage/ManiphestTransaction.php

@@ -13,6 +13,8 @@ final class ManiphestTransaction
   const TYPE_EDGE = 'edge';
   const TYPE_SUBPRIORITY = 'subpriority';
   const TYPE_PROJECT_COLUMN = 'projectcolumn';
+  const TYPE_MERGED_INTO = 'mergedinto';
+  const TYPE_MERGED_FROM = 'mergedfrom';
 
   const TYPE_UNBLOCK = 'unblock';
 
@@ -96,6 +98,12 @@ final class ManiphestTransaction
         $phids[] = $new['projectPHID'];
         $phids[] = head($new['columnPHIDs']);
         break;
+      case self::TYPE_MERGED_INTO:
+        $phids[] = $new;
+        break;
+      case self::TYPE_MERGED_FROM:
+        $phids = array_merge($phids, $new);
+        break;
       case self::TYPE_EDGE:
         $phids = array_mergev(
           array(
@@ -290,6 +298,10 @@ final class ManiphestTransaction
           return pht('Blocker');
         }
 
+      case self::TYPE_MERGED_INTO:
+      case self::TYPE_MERGED_FROM:
+        return pht('Merged');
+
     }
 
     return parent::getActionName();
@@ -334,6 +346,10 @@ final class ManiphestTransaction
       case self::TYPE_PROJECT_COLUMN:
         return 'fa-columns';
 
+      case self::TYPE_MERGED_INTO:
+      case self::TYPE_MERGED_FROM:
+        return 'fa-compress';
+
       case self::TYPE_PRIORITY:
         if ($old == ManiphestTaskPriority::getDefaultPriority()) {
           return 'fa-arrow-right';
@@ -571,7 +587,22 @@ final class ManiphestTransaction
           $this->renderHandleLink($author_phid),
           $this->renderHandleLink($column_phid),
           $this->renderHandleLink($project_phid));
-       break;
+        break;
+
+      case self::TYPE_MERGED_INTO:
+        return pht(
+          '%s merged this task into %s.',
+          $this->renderHandleLink($author_phid),
+          $this->renderHandleLink($new));
+        break;
+
+      case self::TYPE_MERGED_FROM:
+        return pht(
+          '%s merged %d task(s): %s.',
+          $this->renderHandleLink($author_phid),
+          count($new),
+          $this->renderHandleList($new));
+        break;
 
 
     }
@@ -815,7 +846,22 @@ final class ManiphestTransaction
           $this->renderHandleLink($object_phid),
           $this->renderHandleLink($column_phid),
           $this->renderHandleLink($project_phid));
-       break;
+
+      case self::TYPE_MERGED_INTO:
+        return pht(
+          '%s merged task %s into %s.',
+          $this->renderHandleLink($author_phid),
+          $this->renderHandleLink($object_phid),
+          $this->renderHandleLink($new));
+
+      case self::TYPE_MERGED_FROM:
+        return pht(
+          '%s merged %d task(s) %s into %s.',
+          $this->renderHandleLink($author_phid),
+          count($new),
+          $this->renderHandleList($new),
+          $this->renderHandleLink($object_phid));
+
     }
 
     return parent::getTitleForFeed($story);

src/applications/search/controller/PhabricatorSearchAttachController.php

@@ -154,10 +154,6 @@ final class PhabricatorSearchAttachController
       ->setContinueOnNoEffect(true)
       ->setContinueOnMissingFields(true);
 
-    $task_names = array();
-
-    $merge_into_name = 'T'.$task->getID();
-
     $cc_vector = array();
     $cc_vector[] = $task->getCCPHIDs();
     foreach ($targets as $target) {
@@ -166,42 +162,30 @@ final class PhabricatorSearchAttachController
         $target->getAuthorPHID(),
         $target->getOwnerPHID());
 
-      $close_task = id(new ManiphestTransaction())
-        ->setTransactionType(ManiphestTransaction::TYPE_STATUS)
-        ->setNewValue(ManiphestTaskStatus::getDuplicateStatus());
-
-      $merge_comment = id(new ManiphestTransaction())
-        ->setTransactionType(PhabricatorTransactions::TYPE_COMMENT)
-        ->attachComment(
-          id(new ManiphestTransactionComment())
-            ->setContent("\xE2\x9C\x98 Merged into {$merge_into_name}."));
+      $merged_into_txn = id(new ManiphestTransaction())
+        ->setTransactionType(ManiphestTransaction::TYPE_MERGED_INTO)
+        ->setNewValue($task->getPHID());
 
       $editor->applyTransactions(
         $target,
-        array(
-          $close_task,
-          $merge_comment,
-        ));
+        array($merged_into_txn));
 
-      $task_names[] = 'T'.$target->getID();
     }
     $all_ccs = array_mergev($cc_vector);
     $all_ccs = array_filter($all_ccs);
     $all_ccs = array_unique($all_ccs);
 
-    $task_names = implode(', ', $task_names);
-
     $add_ccs = id(new ManiphestTransaction())
       ->setTransactionType(ManiphestTransaction::TYPE_CCS)
       ->setNewValue($all_ccs);
 
-    $merged_comment = id(new ManiphestTransaction())
-      ->setTransactionType(PhabricatorTransactions::TYPE_COMMENT)
-      ->attachComment(
-        id(new ManiphestTransactionComment())
-          ->setContent("\xE2\x97\x80 Merged tasks: {$task_names}."));
+    $merged_from_txn = id(new ManiphestTransaction())
+      ->setTransactionType(ManiphestTransaction::TYPE_MERGED_FROM)
+      ->setNewValue(mpull($targets, 'getPHID'));
 
-    $editor->applyTransactions($task, array($add_ccs, $merged_comment));
+    $editor->applyTransactions(
+      $task,
+      array($add_ccs, $merged_from_txn));
 
     return $response;
   }

src/infrastructure/internationalization/translation/PhabricatorBaseEnglishTranslation.php

@@ -341,6 +341,20 @@ abstract class PhabricatorBaseEnglishTranslation
         ),
       ),
 
+      '%s merged %d task(s): %s.' => array(
+        array(
+          '%s merged a task: %3$s.',
+          '%s merged tasks: %3$s.',
+        ),
+      ),
+
+      '%s merged %d task(s) %s into %s.' => array(
+        array(
+          '%s merged %3$s into %4$s.',
+          '%s merged tasks %3$s into %4$s.',
+        ),
+      ),
+
       '%s edited voting user(s), added %d: %s; removed %d: %s.' =>
         '%s edited voting users, added: %3$s; removed: %5$s',