Apply a TYPE_CREATE transaction when importing events to improve strings in timeline

Summary: Ref T10747. This turns on the newer EditEngine behavior so we get a nice "X created this event." transaction, instead of an "X renamed this from <nothing> to Event Name."

Test Plan: Imported an event, saw a nice timeline.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10747

Differential Revision: https://secure.phabricator.com/D16771

src/applications/calendar/editor/PhabricatorCalendarEventEditor.php

@@ -11,6 +11,15 @@ final class PhabricatorCalendarEventEditor
     return pht('Calendar');
   }
 
+  public function getCreateObjectTitle($author, $object) {
+    return pht('%s created this event.', $author);
+  }
+
+  public function getCreateObjectTitleForFeed($author, $object) {
+    return pht('%s created %s.', $author, $object);
+  }
+
+
   protected function shouldApplyInitialEffects(
     PhabricatorLiskDAO $object,
     array $xactions) {

src/applications/calendar/import/PhabricatorCalendarImportEngine.php

@@ -471,6 +471,12 @@ abstract class PhabricatorCalendarImportEngine
     $xactions = array();
     $uid = $node->getUID();
 
+    if (!$event->getID()) {
+      $xactions[] = id(new PhabricatorCalendarEventTransaction())
+        ->setTransactionType(PhabricatorTransactions::TYPE_CREATE)
+        ->setNewValue(true);
+    }
+
     $name = $node->getName();
     if (!strlen($name)) {
       if (strlen($uid)) {