Allow Phame posts to be loaded by handle

Summary: Primarily, this makes flagging work on them.

Test Plan: Flagged / Unflagged a post.

Reviewers: btrahan

Reviewed By: btrahan

CC: aran

Maniphest Tasks: T1373

Differential Revision: https://secure.phabricator.com/D3702

src/applications/phid/handle/PhabricatorObjectHandleData.php

@@ -539,6 +539,29 @@ final class PhabricatorObjectHandleData {
             $handles[$phid] = $handle;
           }
           break;
+        case PhabricatorPHIDConstants::PHID_TYPE_POST:
+          $posts = id(new PhamePostQuery())
+            ->withPHIDs($phids)
+            ->setViewer($this->viewer)
+            ->execute();
+          $posts = mpull($posts, null, 'getPHID');
+
+          foreach ($phids as $phid) {
+            $handle = new PhabricatorObjectHandle();
+            $handle->setPHID($phid);
+            $handle->setType($type);
+            if (empty($posts[$phid])) {
+              $handle->setName('Unknown Post');
+            } else {
+              $post = $posts[$phid];
+              $handle->setName($post->getTitle());
+              $handle->setFullName($post->getTitle());
+              $handle->setURI('/phame/post/view/'.$post->getID().'/');
+              $handle->setComplete(true);
+            }
+            $handles[$phid] = $handle;
+          }
+          break;
         default:
           $loader = null;
           if (isset($external_loaders[$type])) {