Stop writing new TYPE_PROJECTS transactions to Maniphest

Summary:
Ref T5245. We'll still display the old ones, but write real edge transactions now -- not TYPE_PROJECTS transactions.

Some code remains to show the existing transactions. The next diff will modernize the old transactions so we can remove this code.

Test Plan:
  - Previewed a project-editing comment.
  - Submitted a project-editing comment.
  - Edited a task's projects.
  - Batch edited a task's projects.

Reviewers: joshuaspence, chad, btrahan

Reviewed By: btrahan

Subscribers: epriestley

Maniphest Tasks: T5245

Differential Revision: https://secure.phabricator.com/D9852

src/__phutil_library_map__.php

@@ -954,7 +954,6 @@ phutil_register_library_map(array(
     'ManiphestTaskOwner' => 'applications/maniphest/constants/ManiphestTaskOwner.php',
     'ManiphestTaskPriority' => 'applications/maniphest/constants/ManiphestTaskPriority.php',
     'ManiphestTaskPriorityDatasource' => 'applications/maniphest/typeahead/ManiphestTaskPriorityDatasource.php',
-    'ManiphestTaskProject' => 'applications/maniphest/storage/ManiphestTaskProject.php',
     'ManiphestTaskQuery' => 'applications/maniphest/query/ManiphestTaskQuery.php',
     'ManiphestTaskResultListView' => 'applications/maniphest/view/ManiphestTaskResultListView.php',
     'ManiphestTaskSearchEngine' => 'applications/maniphest/query/ManiphestTaskSearchEngine.php',
@@ -3716,7 +3715,6 @@ phutil_register_library_map(array(
     'ManiphestTaskOwner' => 'ManiphestConstants',
     'ManiphestTaskPriority' => 'ManiphestConstants',
     'ManiphestTaskPriorityDatasource' => 'PhabricatorTypeaheadDatasource',
-    'ManiphestTaskProject' => 'ManiphestDAO',
     'ManiphestTaskQuery' => 'PhabricatorCursorPagedPolicyAwareQuery',
     'ManiphestTaskResultListView' => 'ManiphestView',
     'ManiphestTaskSearchEngine' => 'PhabricatorApplicationSearchEngine',

src/applications/maniphest/conduit/ConduitAPI_maniphest_Method.php

@@ -116,18 +116,27 @@ abstract class ConduitAPI_maniphest_Method extends ConduitAPIMethod {
       $changes[ManiphestTransaction::TYPE_CCS] = $ccs;
     }
 
+    $transactions = array();
+
     $project_phids = $request->getValue('projectPHIDs');
     if ($project_phids !== null) {
       $this->validatePHIDList(
         $project_phids,
         PhabricatorProjectPHIDTypeProject::TYPECONST,
         'projectPHIDS');
-      $changes[ManiphestTransaction::TYPE_PROJECTS] = $project_phids;
+
+      $project_type = PhabricatorProjectObjectHasProjectEdgeType::EDGECONST;
+      $transactions[] = id(new ManiphestTransaction())
+        ->setTransactionType(PhabricatorTransactions::TYPE_EDGE)
+        ->setMetadataValue('edge:type', $project_type)
+        ->setNewValue(
+          array(
+            '=' => array_fuse($project_phids),
+          ));
     }
 
     $template = new ManiphestTransaction();
 
-    $transactions = array();
     foreach ($changes as $type => $value) {
       $transaction = clone $template;
       $transaction->setTransactionType($type);

src/applications/maniphest/controller/ManiphestBatchEditController.php

@@ -324,6 +324,18 @@ final class ManiphestBatchEditController extends ManiphestController {
             id(new ManiphestTransactionComment())
               ->setContent($value));
           break;
+        case ManiphestTransaction::TYPE_PROJECTS:
+
+          // TODO: Clean this mess up.
+          $project_type = PhabricatorProjectObjectHasProjectEdgeType::EDGECONST;
+          $xaction
+            ->setTransactionType(PhabricatorTransactions::TYPE_EDGE)
+            ->setMetadataValue('edge:type', $project_type)
+            ->setNewValue(
+              array(
+                '=' => array_fuse($value),
+              ));
+          break;
         default:
           $xaction->setNewValue($value);
           break;

src/applications/maniphest/controller/ManiphestTaskEditController.php

@@ -269,6 +269,17 @@ final class ManiphestTaskEditController extends ManiphestController {
           if ($type == ManiphestTransaction::TYPE_PROJECT_COLUMN) {
             $transaction->setNewValue($value['new']);
             $transaction->setOldValue($value['old']);
+          } else if ($type == ManiphestTransaction::TYPE_PROJECTS) {
+            // TODO: Gross.
+            $project_type =
+              PhabricatorProjectObjectHasProjectEdgeType::EDGECONST;
+            $transaction
+              ->setTransactionType(PhabricatorTransactions::TYPE_EDGE)
+              ->setMetadataValue('edge:type', $project_type)
+              ->setNewValue(
+                array(
+                  '=' => array_fuse($value),
+                ));
           } else {
             $transaction->setNewValue($value);
           }

src/applications/maniphest/controller/ManiphestTransactionPreviewController.php

@@ -83,14 +83,19 @@ final class ManiphestTransactionPreviewController extends ManiphestController {
           $value = array();
         }
 
-        $phids = $value;
-        foreach ($task->getProjectPHIDs() as $project_phid) {
+        $phids = array();
+        $value = array_fuse($value);
+        foreach ($value as $project_phid) {
           $phids[] = $project_phid;
-          $value[] = $project_phid;
+          $value[$project_phid] = array('dst' => $project_phid);
         }
 
-        $transaction->setOldValue($task->getProjectPHIDs());
-        $transaction->setNewValue($value);
+        $project_type = PhabricatorProjectObjectHasProjectEdgeType::EDGECONST;
+        $transaction
+          ->setTransactionType(PhabricatorTransactions::TYPE_EDGE)
+          ->setMetadataValue('edge:type', $project_type)
+          ->setOldValue(array())
+          ->setNewValue($value);
         break;
       case ManiphestTransaction::TYPE_STATUS:
         $phids = array();

src/applications/maniphest/controller/ManiphestTransactionSaveController.php

@@ -53,7 +53,16 @@ final class ManiphestTransactionSaveController extends ManiphestController {
         $projects = array_merge($projects, $task->getProjectPHIDs());
         $projects = array_filter($projects);
         $projects = array_unique($projects);
-        $transaction->setNewValue($projects);
+
+        // TODO: Bleh.
+        $project_type = PhabricatorProjectObjectHasProjectEdgeType::EDGECONST;
+        $transaction
+          ->setTransactionType(PhabricatorTransactions::TYPE_EDGE)
+          ->setMetadataValue('edge:type', $project_type)
+          ->setNewValue(
+            array(
+              '+' => array_fuse($projects),
+            ));
         break;
       case ManiphestTransaction::TYPE_CCS:
         // Accumulate the new explicit CCs into the array that we'll add in

src/applications/maniphest/editor/ManiphestTransactionEditor.php

@@ -16,7 +16,6 @@ final class ManiphestTransactionEditor
     $types[] = ManiphestTransaction::TYPE_DESCRIPTION;
     $types[] = ManiphestTransaction::TYPE_OWNER;
     $types[] = ManiphestTransaction::TYPE_CCS;
-    $types[] = ManiphestTransaction::TYPE_PROJECTS;
     $types[] = ManiphestTransaction::TYPE_SUBPRIORITY;
     $types[] = ManiphestTransaction::TYPE_PROJECT_COLUMN;
     $types[] = ManiphestTransaction::TYPE_UNBLOCK;
@@ -55,8 +54,6 @@ final class ManiphestTransactionEditor
         return nonempty($object->getOwnerPHID(), null);
       case ManiphestTransaction::TYPE_CCS:
         return array_values(array_unique($object->getCCPHIDs()));
-      case ManiphestTransaction::TYPE_PROJECTS:
-        return array_values(array_unique($object->getProjectPHIDs()));
       case ManiphestTransaction::TYPE_PROJECT_COLUMN:
         // These are pre-populated.
         return $xaction->getOldValue();
@@ -74,7 +71,6 @@ final class ManiphestTransactionEditor
       case ManiphestTransaction::TYPE_PRIORITY:
         return (int)$xaction->getNewValue();
       case ManiphestTransaction::TYPE_CCS:
-      case ManiphestTransaction::TYPE_PROJECTS:
         return array_values(array_unique($xaction->getNewValue()));
       case ManiphestTransaction::TYPE_OWNER:
         return nonempty($xaction->getNewValue(), null);
@@ -97,7 +93,6 @@ final class ManiphestTransactionEditor
     $new = $xaction->getNewValue();
 
     switch ($xaction->getTransactionType()) {
-      case ManiphestTransaction::TYPE_PROJECTS:
       case ManiphestTransaction::TYPE_CCS:
         sort($old);
         sort($new);
@@ -149,11 +144,6 @@ final class ManiphestTransactionEditor
         return $object->setOwnerPHID($phid);
       case ManiphestTransaction::TYPE_CCS:
         return $object->setCCPHIDs($xaction->getNewValue());
-      case ManiphestTransaction::TYPE_PROJECTS:
-        ManiphestTaskProject::updateTaskProjects(
-          $object,
-          $xaction->getNewValue());
-        return $object;
       case ManiphestTransaction::TYPE_SUBPRIORITY:
         $data = $xaction->getNewValue();
         $new_sub = $this->getNextSubpriority(
@@ -425,15 +415,14 @@ final class ManiphestTransactionEditor
 
     $project_phids = $adapter->getProjectPHIDs();
     if ($project_phids) {
-      $existing_projects = $object->getProjectPHIDs();
-      $new_projects = array_unique(
-        array_merge(
-          $project_phids,
-          $existing_projects));
-
+      $project_type = PhabricatorProjectObjectHasProjectEdgeType::EDGECONST;
       $xactions[] = id(new ManiphestTransaction())
-        ->setTransactionType(ManiphestTransaction::TYPE_PROJECTS)
-        ->setNewValue($new_projects);
+        ->setTransactionType(PhabricatorTransactions::TYPE_EDGE)
+        ->setMetadataValue('edge:type', $project_type)
+        ->setNewValue(
+          array(
+            '+' => array_fuse($project_phids),
+          ));
     }
 
     return $xactions;
@@ -450,8 +439,6 @@ final class ManiphestTransactionEditor
         ManiphestCapabilityEditPriority::CAPABILITY,
       ManiphestTransaction::TYPE_STATUS =>
         ManiphestCapabilityEditStatus::CAPABILITY,
-      ManiphestTransaction::TYPE_PROJECTS =>
-        ManiphestCapabilityEditProjects::CAPABILITY,
       ManiphestTransaction::TYPE_OWNER =>
         ManiphestCapabilityEditAssign::CAPABILITY,
       PhabricatorTransactions::TYPE_EDIT_POLICY =>
@@ -460,8 +447,19 @@ final class ManiphestTransactionEditor
         ManiphestCapabilityEditPolicies::CAPABILITY,
     );
 
+
     $transaction_type = $xaction->getTransactionType();
+
+    $app_capability = null;
+    if ($transaction_type == PhabricatorTransactions::TYPE_EDGE) {
+      switch ($xaction->getMetadataValue('edge:type')) {
+        case PhabricatorProjectObjectHasProjectEdgeType::EDGECONST:
+          $app_capability = ManiphestCapabilityEditProjects::CAPABILITY;
+          break;
+      }
+    } else {
       $app_capability = idx($app_capability_map, $transaction_type);
+    }
 
     if ($app_capability) {
       $app = id(new PhabricatorApplicationQuery())

src/applications/maniphest/lipsum/PhabricatorManiphestTaskTestDataGenerator.php

@@ -30,8 +30,6 @@ final class PhabricatorManiphestTaskTestDataGenerator
       $this->generateTaskPriority();
     $changes[ManiphestTransaction::TYPE_CCS] =
       $this->getCCPHIDs();
-    $changes[ManiphestTransaction::TYPE_PROJECTS] =
-      $this->getProjectPHIDs();
     $transactions = array();
     foreach ($changes as $type => $value) {
       $transaction = clone $template;

src/applications/maniphest/storage/ManiphestTaskProject.php

@@ -1,49 +0,0 @@
-<?php
-
-/**
- * This is a DAO for the Task -> Project table, which denormalizes the
- * relationship between tasks and projects into a link table so it can be
- * efficiently queried. This table is not authoritative; the projectPHIDs field
- * of ManiphestTask is. The rows in this table are regenerated when transactions
- * are applied to tasks which affected their associated projects.
- */
-final class ManiphestTaskProject extends ManiphestDAO {
-
-  protected $taskPHID;
-  protected $projectPHID;
-
-  public function getConfiguration() {
-    return array(
-      self::CONFIG_IDS          => self::IDS_MANUAL,
-      self::CONFIG_TIMESTAMPS   => false,
-    );
-  }
-
-  public static function updateTaskProjects(
-    ManiphestTask $task,
-    array $new_phids) {
-
-    $edge_type = PhabricatorProjectObjectHasProjectEdgeType::EDGECONST;
-
-    $old_phids = PhabricatorEdgeQuery::loadDestinationPHIDs(
-      $task->getPHID(),
-      $edge_type);
-
-    $add_phids = array_diff($new_phids, $old_phids);
-    $rem_phids = array_diff($old_phids, $new_phids);
-
-    if (!$add_phids && !$rem_phids) {
-      return;
-    }
-
-    $editor = new PhabricatorEdgeEditor();
-    foreach ($add_phids as $phid) {
-      $editor->addEdge($task->getPHID(), $edge_type, $phid);
-    }
-    foreach ($rem_phids as $phid) {
-      $editor->remEdge($task->getPHID(), $edge_type, $phid);
-    }
-    $editor->save();
-  }
-
-}

src/applications/maniphest/storage/ManiphestTransaction.php

@@ -788,9 +788,16 @@ final class ManiphestTransaction
       case self::TYPE_CCS:
         $tags[] = MetaMTANotificationType::TYPE_MANIPHEST_CC;
         break;
-      case self::TYPE_PROJECTS:
+      case PhabricatorTransactions::TYPE_EDGE:
+        switch ($this->getMetadataValue('edge:type')) {
+          case PhabricatorProjectObjectHasProjectEdgeType::EDGECONST:
             $tags[] = MetaMTANotificationType::TYPE_MANIPHEST_PROJECTS;
             break;
+          default:
+            $tags[] = MetaMTANotificationType::TYPE_MANIPHEST_OTHER;
+            break;
+        }
+        break;
       case self::TYPE_PRIORITY:
         $tags[] = MetaMTANotificationType::TYPE_MANIPHEST_PRIORITY;
         break;