Differential - make DifferentialDiffEditor into a real transaction editor.

Summary: Ref T6237. This sets us up for some future work like T6152, T6200 and generally cleaning up this workflow a bit. Tried to do as little as possible so not exposing transaction view yet. (Though that timeline is going to be a little funky in the common case of just the lone create transaction.)

Test Plan: made a diff from web ui and it worked. made a herald rule to block certain diffs then tried to make such a diff and saw UI letting me know i was blocked

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: Korvin, epriestley

Maniphest Tasks: T6237

Differential Revision: https://secure.phabricator.com/D10869

resources/sql/autopatches/20141118.diffxaction.sql

@@ -0,0 +1,19 @@
+CREATE TABLE {$NAMESPACE}_differential.differential_difftransaction (
+  id INT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY,
+  phid VARBINARY(64) NOT NULL,
+  authorPHID VARBINARY(64) NOT NULL,
+  objectPHID VARBINARY(64) NOT NULL,
+  viewPolicy VARBINARY(64) NOT NULL,
+  editPolicy VARBINARY(64) NOT NULL,
+  commentPHID VARBINARY(64),
+  commentVersion INT UNSIGNED NOT NULL,
+  transactionType VARCHAR(32) COLLATE {$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};

src/__phutil_library_map__.php

@@ -325,6 +325,7 @@ phutil_register_library_map(array(
     'DifferentialDiffQuery' => 'applications/differential/query/DifferentialDiffQuery.php',
     'DifferentialDiffTableOfContentsView' => 'applications/differential/view/DifferentialDiffTableOfContentsView.php',
     'DifferentialDiffTestCase' => 'applications/differential/storage/__tests__/DifferentialDiffTestCase.php',
+    'DifferentialDiffTransaction' => 'applications/differential/storage/DifferentialDiffTransaction.php',
     'DifferentialDiffViewController' => 'applications/differential/controller/DifferentialDiffViewController.php',
     'DifferentialDoorkeeperRevisionFeedStoryPublisher' => 'applications/differential/doorkeeper/DifferentialDoorkeeperRevisionFeedStoryPublisher.php',
     'DifferentialDraft' => 'applications/differential/storage/DifferentialDraft.php',
@@ -3313,12 +3314,13 @@ phutil_register_library_map(array(
     ),
     'DifferentialDiffCreateController' => 'DifferentialController',
     'DifferentialDiffCreationRejectException' => 'Exception',
-    'DifferentialDiffEditor' => 'PhabricatorEditor',
+    'DifferentialDiffEditor' => 'PhabricatorApplicationTransactionEditor',
     'DifferentialDiffPHIDType' => 'PhabricatorPHIDType',
     'DifferentialDiffProperty' => 'DifferentialDAO',
     'DifferentialDiffQuery' => 'PhabricatorCursorPagedPolicyAwareQuery',
     'DifferentialDiffTableOfContentsView' => 'AphrontView',
     'DifferentialDiffTestCase' => 'ArcanistPhutilTestCase',
+    'DifferentialDiffTransaction' => 'PhabricatorApplicationTransaction',
     'DifferentialDiffViewController' => 'DifferentialController',
     'DifferentialDoorkeeperRevisionFeedStoryPublisher' => 'DoorkeeperFeedStoryPublisher',
     'DifferentialDraft' => 'DifferentialDAO',

src/applications/differential/conduit/DifferentialCreateDiffConduitAPIMethod.php

@@ -70,19 +70,13 @@ final class DifferentialCreateDiffConduitAPIMethod
     }
 
     $diff = DifferentialDiff::newFromRawChanges($changes);
-    $diff->setSourcePath($request->getValue('sourcePath'));
-    $diff->setSourceMachine($request->getValue('sourceMachine'));
 
-    $diff->setBranch($request->getValue('branch'));
-    $diff->setCreationMethod($request->getValue('creationMethod'));
-    $diff->setAuthorPHID($viewer->getPHID());
-    $diff->setBookmark($request->getValue('bookmark'));
-
-    // TODO: Remove this eventually; for now continue writing the UUID. Note
-    // that we'll overwrite it below if we identify a repository, and `arc`
-    // no longer sends it. This stuff is retained for backward compatibility.
-    $diff->setRepositoryUUID($request->getValue('repositoryUUID'));
+    // TODO: Remove repository UUID eventually; for now continue writing
+    // the UUID. Note that we'll overwrite it below if we identify a
+    // repository, and `arc` no longer sends it. This stuff is retained for
+    // backward compatibility.
 
+    $repository_uuid = $request->getValue('repositoryUUID');
     $repository_phid = $request->getValue('repositoryPHID');
     if ($repository_phid) {
       $repository = id(new PhabricatorRepositoryQuery())
@@ -90,17 +84,11 @@ final class DifferentialCreateDiffConduitAPIMethod
         ->withPHIDs(array($repository_phid))
         ->executeOne();
       if ($repository) {
-        $diff->setRepositoryPHID($repository->getPHID());
-        $diff->setRepositoryUUID($repository->getUUID());
+        $repository_phid = $repository->getPHID();
+        $repository_uuid = $repository->getUUID();
       }
     }
 
-    $system = $request->getValue('sourceControlSystem');
-    $diff->setSourceControlSystem($system);
-    $diff->setSourceControlPath($request->getValue('sourceControlPath'));
-    $diff->setSourceControlBaseRevision(
-      $request->getValue('sourceControlBaseRevision'));
-
     $project_name = $request->getValue('arcanistProject');
     $project_phid = null;
     if ($project_name) {
@@ -116,73 +104,75 @@ final class DifferentialCreateDiffConduitAPIMethod
       $project_phid = $arcanist_project->getPHID();
     }
 
-    $diff->setArcanistProjectPHID($project_phid);
-
     switch ($request->getValue('lintStatus')) {
       case 'skip':
-        $diff->setLintStatus(DifferentialLintStatus::LINT_SKIP);
+        $lint_status = DifferentialLintStatus::LINT_SKIP;
         break;
       case 'okay':
-        $diff->setLintStatus(DifferentialLintStatus::LINT_OKAY);
+        $lint_status = DifferentialLintStatus::LINT_OKAY;
         break;
       case 'warn':
-        $diff->setLintStatus(DifferentialLintStatus::LINT_WARN);
+        $lint_status = DifferentialLintStatus::LINT_WARN;
         break;
       case 'fail':
-        $diff->setLintStatus(DifferentialLintStatus::LINT_FAIL);
+        $lint_status = DifferentialLintStatus::LINT_FAIL;
         break;
       case 'postponed':
-        $diff->setLintStatus(DifferentialLintStatus::LINT_POSTPONED);
+        $lint_status = DifferentialLintStatus::LINT_POSTPONED;
         break;
       case 'none':
       default:
-        $diff->setLintStatus(DifferentialLintStatus::LINT_NONE);
+        $lint_status = DifferentialLintStatus::LINT_NONE;
         break;
     }
 
     switch ($request->getValue('unitStatus')) {
       case 'skip':
-        $diff->setUnitStatus(DifferentialUnitStatus::UNIT_SKIP);
+        $unit_status = DifferentialUnitStatus::UNIT_SKIP;
         break;
       case 'okay':
-        $diff->setUnitStatus(DifferentialUnitStatus::UNIT_OKAY);
+        $unit_status = DifferentialUnitStatus::UNIT_OKAY;
         break;
       case 'warn':
-        $diff->setUnitStatus(DifferentialUnitStatus::UNIT_WARN);
+        $unit_status = DifferentialUnitStatus::UNIT_WARN;
         break;
       case 'fail':
-        $diff->setUnitStatus(DifferentialUnitStatus::UNIT_FAIL);
+        $unit_status = DifferentialUnitStatus::UNIT_FAIL;
         break;
       case 'postponed':
-        $diff->setUnitStatus(DifferentialUnitStatus::UNIT_POSTPONED);
+        $unit_status = DifferentialUnitStatus::UNIT_POSTPONED;
         break;
       case 'none':
       default:
-        $diff->setUnitStatus(DifferentialUnitStatus::UNIT_NONE);
+        $unit_status = DifferentialUnitStatus::UNIT_NONE;
         break;
     }
 
+    $diff_data_dict = array(
+      'sourcePath' => $request->getValue('sourcePath'),
+      'sourceMachine' => $request->getValue('sourceMachine'),
+      'branch' => $request->getValue('branch'),
+      'creationMethod' => $request->getValue('creationMethod'),
+      'authorPHID' => $viewer->getPHID(),
+      'bookmark' => $request->getValue('bookmark'),
+      'repositoryUUID' => $repository_uuid,
+      'repositoryPHID' => $repository_phid,
+      'sourceControlSystem' => $request->getValue('sourceControlSystem'),
+      'sourceControlPath' => $request->getValue('sourceControlPath'),
+      'sourceControlBaseRevision' =>
+        $request->getValue('sourceControlBaseRevision'),
+      'arcanistProjectPHID' => $project_phid,
+      'lintStatus' => $lint_status,
+      'unitStatus' => $unit_status,);
+
+    $xactions = array(id(new DifferentialTransaction())
+      ->setTransactionType(DifferentialDiffTransaction::TYPE_DIFF_CREATE)
+      ->setNewValue($diff_data_dict),);
+
     id(new DifferentialDiffEditor())
       ->setActor($viewer)
-      ->setContentSource(
-        PhabricatorContentSource::newFromConduitRequest($request))
-      ->saveDiff($diff);
-
-    // If we didn't get an explicit `repositoryPHID` (which means the client is
-    // old, or couldn't figure out which repository the working copy belongs
-    // to), apply heuristics to try to figure it out.
-
-    if (!$repository_phid) {
-      $repository = id(new DifferentialRepositoryLookup())
-        ->setDiff($diff)
-        ->setViewer($viewer)
-        ->lookupRepository();
-      if ($repository) {
-        $diff->setRepositoryPHID($repository->getPHID());
-        $diff->setRepositoryUUID($repository->getUUID());
-        $diff->save();
-      }
-    }
+      ->setContentSourceFromConduitRequest($request)
+      ->applyTransactions($diff, $xactions);
 
     $path = '/differential/diff/'.$diff->getID().'/';
     $uri = PhabricatorEnv::getURI($path);

src/applications/differential/conduit/DifferentialCreateRawDiffConduitAPIMethod.php

@@ -41,29 +41,27 @@ final class DifferentialCreateRawDiffConduitAPIMethod
         throw new Exception(
           pht('No such repository "%s"!', $repository_phid));
       }
-    } else {
-      $repository = null;
     }
 
     $parser = new ArcanistDiffParser();
     $changes = $parser->parseDiff($raw_diff);
     $diff = DifferentialDiff::newFromRawChanges($changes);
 
-    $diff->setLintStatus(DifferentialLintStatus::LINT_SKIP);
-    $diff->setUnitStatus(DifferentialUnitStatus::UNIT_SKIP);
+    $diff_data_dict = array(
+      'creationMethod' => 'web',
+      'authorPHID' => $viewer->getPHID(),
+      'repositoryPHID' => $repository_phid,
+      'lintStatus' => DifferentialLintStatus::LINT_SKIP,
+      'unitStatus' => DifferentialUnitStatus::UNIT_SKIP,);
 
-    $diff->setAuthorPHID($viewer->getPHID());
-    $diff->setCreationMethod('web');
-
-    if ($repository) {
-      $diff->setRepositoryPHID($repository->getPHID());
-    }
+    $xactions = array(id(new DifferentialTransaction())
+      ->setTransactionType(DifferentialDiffTransaction::TYPE_DIFF_CREATE)
+      ->setNewValue($diff_data_dict),);
 
     id(new DifferentialDiffEditor())
       ->setActor($viewer)
-      ->setContentSource(
-        PhabricatorContentSource::newFromConduitRequest($request))
-      ->saveDiff($diff);
+      ->setContentSourceFromConduitRequest($request)
+      ->applyTransactions($diff, $xactions);
 
     return $this->buildDiffInfoDictionary($diff);
   }

src/applications/differential/controller/DifferentialDiffCreateController.php

@@ -6,11 +6,12 @@ final class DifferentialDiffCreateController extends DifferentialController {
 
     $request = $this->getRequest();
 
+    $diff = null;
     $errors = array();
     $e_diff = null;
     $e_file = null;
+    $validation_exception = null;
     if ($request->isFormPost()) {
-      $diff = null;
 
       if ($request->getFileExists('diff-file')) {
         $diff = PhabricatorFile::readUploadedFileData($_FILES['diff-file']);
@@ -27,16 +28,19 @@ final class DifferentialDiffCreateController extends DifferentialController {
       }
 
       if (!$errors) {
-        $call = new ConduitCall(
-          'differential.createrawdiff',
-          array(
-            'diff' => $diff,
+        try {
+          $call = new ConduitCall(
+            'differential.createrawdiff',
+            array(
+              'diff' => $diff,
             ));
-        $call->setUser($request->getUser());
-        $result = $call->execute();
-
-        $path = id(new PhutilURI($result['uri']))->getPath();
-        return id(new AphrontRedirectResponse())->setURI($path);
+          $call->setUser($request->getUser());
+          $result = $call->execute();
+          $path = id(new PhutilURI($result['uri']))->getPath();
+          return id(new AphrontRedirectResponse())->setURI($path);
+        } catch (PhabricatorApplicationTransactionValidationException $ex) {
+          $validation_exception = $ex;
+        }
       }
     }
 
@@ -69,6 +73,7 @@ final class DifferentialDiffCreateController extends DifferentialController {
         id(new AphrontFormTextAreaControl())
           ->setLabel(pht('Raw Diff'))
           ->setName('diff')
+          ->setValue($diff)
           ->setHeight(AphrontFormTextAreaControl::HEIGHT_VERY_TALL)
           ->setError($e_diff))
       ->appendChild(
@@ -83,6 +88,7 @@ final class DifferentialDiffCreateController extends DifferentialController {
 
     $form_box = id(new PHUIObjectBoxView())
       ->setHeaderText(pht('Create New Diff'))
+      ->setValidationException($validation_exception)
       ->setForm($form)
       ->setFormErrors($errors);
 

src/applications/differential/editor/DifferentialDiffEditor.php

@@ -1,80 +1,236 @@
 <?php
 
-final class DifferentialDiffEditor extends PhabricatorEditor {
+final class DifferentialDiffEditor
+  extends PhabricatorApplicationTransactionEditor {
 
-  private $contentSource;
+  private $diffDataDict;
 
-  public function setContentSource($content_source) {
-    $this->contentSource = $content_source;
-    return $this;
+  public function getEditorApplicationClass() {
+    return 'PhabricatorDifferentialApplication';
   }
 
-  public function getContentSource() {
-    return $this->contentSource;
+  public function getEditorObjectsDescription() {
+    return pht('Differential Diffs');
   }
 
-  public function saveDiff(DifferentialDiff $diff) {
-    $actor = $this->requireActor();
+  public function getTransactionTypes() {
+    $types = parent::getTransactionTypes();
 
-    // Generate a PHID first, so the transcript will point at the object if
-    // we deicde to preserve it.
-    $phid = $diff->generatePHID();
-    $diff->setPHID($phid);
+    $types[] = DifferentialDiffTransaction::TYPE_DIFF_CREATE;
+
+    return $types;
+  }
+
+  protected function getCustomTransactionOldValue(
+    PhabricatorLiskDAO $object,
+    PhabricatorApplicationTransaction $xaction) {
+
+    switch ($xaction->getTransactionType()) {
+      case DifferentialDiffTransaction::TYPE_DIFF_CREATE:
+        return null;
+    }
+
+    return parent::getCustomTransactionOldValue($object, $xaction);
+  }
+
+  protected function getCustomTransactionNewValue(
+    PhabricatorLiskDAO $object,
+    PhabricatorApplicationTransaction $xaction) {
+
+    switch ($xaction->getTransactionType()) {
+      case DifferentialDiffTransaction::TYPE_DIFF_CREATE:
+        $this->diffDataDict = $xaction->getNewValue();
+        return true;
+    }
+
+    return parent::getCustomTransactionNewValue($object, $xaction);
+  }
+
+  protected function applyCustomInternalTransaction(
+    PhabricatorLiskDAO $object,
+    PhabricatorApplicationTransaction $xaction) {
+
+    switch ($xaction->getTransactionType()) {
+      case DifferentialDiffTransaction::TYPE_DIFF_CREATE:
+        $dict = $this->diffDataDict;
+        $this->updateDiffFromDict($object, $dict);
+        return;
+    }
+
+    return parent::applyCustomInternalTransaction($object, $xaction);
+  }
+
+  protected function applyCustomExternalTransaction(
+    PhabricatorLiskDAO $object,
+    PhabricatorApplicationTransaction $xaction) {
+
+    switch ($xaction->getTransactionType()) {
+      case DifferentialDiffTransaction::TYPE_DIFF_CREATE:
+        return;
+    }
+
+    return parent::applyCustomExternalTransaction($object, $xaction);
+    }
+
+  protected function applyFinalEffects(
+    PhabricatorLiskDAO $object,
+    array $xactions) {
+
+    // If we didn't get an explicit `repositoryPHID` (which means the client
+    // is old, or couldn't figure out which repository the working copy
+    // belongs to), apply heuristics to try to figure it out.
+
+    if (!$object->getRepositoryPHID()) {
+      $repository = id(new DifferentialRepositoryLookup())
+        ->setDiff($object)
+        ->setViewer($this->getActor())
+        ->lookupRepository();
+      if ($repository) {
+        $object->setRepositoryPHID($repository->getPHID());
+        $object->setRepositoryUUID($repository->getUUID());
+        $object->save();
+      }
+    }
+
+    return $xactions;
+  }
+
+  /**
+   * We run Herald as part of transaction validation because Herald can
+   * block diff creation for Differential diffs. Its important to do this
+   * separately so no Herald logs are saved; these logs could expose
+   * information the Herald rules are inteneded to block.
+   */
+  protected function validateTransaction(
+    PhabricatorLiskDAO $object,
+    $type,
+    array $xactions) {
+
+    $errors = parent::validateTransaction($object, $type, $xactions);
+
+    foreach ($xactions as $xaction) {
+      switch ($type) {
+        case DifferentialDiffTransaction::TYPE_DIFF_CREATE:
+          $diff = clone $object;
+          $diff = $this->updateDiffFromDict($diff, $xaction->getNewValue());
+
+          $adapter = $this->buildHeraldAdapter($diff, $xactions);
+          $adapter->setContentSource($this->getContentSource());
+          $adapter->setIsNewObject($this->getIsNewObject());
+
+          $engine = new HeraldEngine();
+
+          $rules = $engine->loadRulesForAdapter($adapter);
+          $rules = mpull($rules, null, 'getID');
+
+          $effects = $engine->applyRules($rules, $adapter);
+
+          $blocking_effect = null;
+          foreach ($effects as $effect) {
+            if ($effect->getAction() == HeraldAdapter::ACTION_BLOCK) {
+              $blocking_effect = $effect;
+              break;
+            }
+          }
+
+          if ($blocking_effect) {
+            $rule = idx($rules, $effect->getRuleID());
+            if ($rule && strlen($rule->getName())) {
+              $rule_name = $rule->getName();
+            } else {
+              $rule_name = pht('Unnamed Herald Rule');
+            }
+
+            $message = $effect->getTarget();
+            if (!strlen($message)) {
+              $message = pht('(None.)');
+            }
+
+            $errors[] = new PhabricatorApplicationTransactionValidationError(
+              $type,
+              pht('Rejected by Herald'),
+              pht(
+                "Creation of this diff was rejected by Herald rule %s.\n".
+                "  Rule: %s\n".
+                "Reason: %s",
+                'H'.$effect->getRuleID(),
+                $rule_name,
+                $message));
+          }
+          break;
+      }
+    }
+
+    return $errors;
+  }
+
+
+  protected function shouldPublishFeedStory(
+    PhabricatorLiskDAO $object,
+    array $xactions) {
+    return false;
+  }
+
+  protected function shouldSendMail(
+    PhabricatorLiskDAO $object,
+    array $xactions) {
+    return false;
+  }
+
+  protected function supportsSearch() {
+    return false;
+  }
+
+/* -(  Herald Integration  )------------------------------------------------- */
+
+  /**
+   * See @{method:validateTransaction}. The only Herald action is to block
+   * the creation of Diffs. We thus have to be careful not to save any
+   * data and do this validation very early.
+   */
+  protected function shouldApplyHeraldRules(
+    PhabricatorLiskDAO $object,
+    array $xactions) {
+
+    return false;
+  }
+
+  protected function buildHeraldAdapter(
+    PhabricatorLiskDAO $object,
+    array $xactions) {
 
     $adapter = id(new HeraldDifferentialDiffAdapter())
-      ->setDiff($diff);
-
-    $adapter->setContentSource($this->getContentSource());
-    $adapter->setIsNewObject(true);
-
-    $engine = new HeraldEngine();
-
-    $rules = $engine->loadRulesForAdapter($adapter);
-    $rules = mpull($rules, null, 'getID');
-
-    $effects = $engine->applyRules($rules, $adapter);
-
-    $blocking_effect = null;
-    foreach ($effects as $effect) {
-      if ($effect->getAction() == HeraldAdapter::ACTION_BLOCK) {
-        $blocking_effect = $effect;
-        break;
-      }
-    }
-
-    if ($blocking_effect) {
-      $rule = idx($rules, $effect->getRuleID());
-      if ($rule && strlen($rule->getName())) {
-        $rule_name = $rule->getName();
-      } else {
-        $rule_name = pht('Unnamed Herald Rule');
-      }
-
-      $message = $effect->getTarget();
-      if (!strlen($message)) {
-        $message = pht('(None.)');
-      }
-
-      throw new DifferentialDiffCreationRejectException(
-        pht(
-          "Creation of this diff was rejected by Herald rule %s.\n".
-          "  Rule: %s\n".
-          "Reason: %s",
-          'H'.$effect->getRuleID(),
-          $rule_name,
-          $message));
-    }
-
-    $diff->save();
-
-    // NOTE: We only save the transcript if we didn't block the diff.
-    // Otherwise, we might save some of the diff's content in the transcript
-    // table, which would defeat the purpose of allowing rules to block
-    // storage of key material.
-
-    $engine->applyEffects($effects, $adapter, $rules);
-    $xscript = $engine->getTranscript();
+      ->setDiff($object);
 
+    return $adapter;
   }
 
+  protected function didApplyHeraldRules(
+    PhabricatorLiskDAO $object,
+    HeraldAdapter $adapter,
+    HeraldTranscript $transcript) {
+
+    $xactions = array();
+    return $xactions;
+  }
+
+  private function updateDiffFromDict(DifferentialDiff $diff, $dict) {
+    $diff
+      ->setSourcePath(idx($dict, 'sourcePath'))
+      ->setSourceMachine(idx($dict, 'sourceMachine'))
+      ->setBranch(idx($dict, 'branch'))
+      ->setCreationMethod(idx($dict, 'creationMethod'))
+      ->setAuthorPHID(idx($dict, 'authorPHID', $this->getActor()))
+      ->setBookmark(idx($dict, 'bookmark'))
+      ->setRepositoryPHID(idx($dict, 'repositoryPHID'))
+      ->setRepositoryUUID(idx($dict, 'repositoryUUID'))
+      ->setSourceControlSystem(idx($dict, 'sourceControlSystem'))
+      ->setSourceControlPath(idx($dict, 'sourceControlPath'))
+      ->setSourceControlBaseRevision(idx($dict, 'sourceControlBaseRevision'))
+      ->setLintStatus(idx($dict, 'lintStatus'))
+      ->setUnitStatus(idx($dict, 'unitStatus'))
+      ->setArcanistProjectPHID(idx($dict, 'arcanistProjectPHID'));
+
+    return $diff;
+  }
 }

src/applications/differential/editor/DifferentialTransactionEditor.php

@@ -1523,8 +1523,6 @@ final class DifferentialTransactionEditor
     $adapter->setExplicitReviewers($reviewer_phids);
     $adapter->setForbiddenCCs($unsubscribed_phids);
 
-    $adapter->setIsNewObject($this->getIsNewObject());
-
     return $adapter;
   }
 

src/applications/differential/storage/DifferentialDiffTransaction.php

@@ -0,0 +1,64 @@
+<?php
+
+final class DifferentialDiffTransaction
+  extends PhabricatorApplicationTransaction {
+
+  const TYPE_DIFF_CREATE = 'differential:diff:create';
+
+  public function getApplicationName() {
+    return 'differential';
+  }
+
+  public function getApplicationTransactionType() {
+    return DifferentialDiffPHIDType::TYPECONST;
+  }
+
+  public function shouldHideForMail(array $xactions) {
+    return true;
+  }
+
+  public function getActionName() {
+    switch ($this->getTransactionType()) {
+      case self::TYPE_DIFF_CREATE;
+        return pht('Created');
+    }
+
+    return parent::getActionName();
+  }
+
+  public function getTitle() {
+    $author_phid = $this->getAuthorPHID();
+    $author_handle = $this->renderHandleLink($author_phid);
+
+    $old = $this->getOldValue();
+    $new = $this->getNewValue();
+
+    switch ($this->getTransactionType()) {
+      case self::TYPE_DIFF_CREATE;
+        return pht(
+          '%s created this diff.',
+          $author_handle);
+    }
+
+    return parent::getTitle();
+  }
+
+  public function getIcon() {
+    switch ($this->getTransactionType()) {
+      case self::TYPE_DIFF_CREATE:
+        return 'fa-refresh';
+    }
+
+    return parent::getIcon();
+  }
+
+  public function getColor() {
+    switch ($this->getTransactionType()) {
+      case self::TYPE_DIFF_CREATE:
+        return PhabricatorTransactions::COLOR_SKY;
+    }
+
+    return parent::getColor();
+  }
+
+}