protected function buildOpenRevisions()
 {
     $drequest = $this->getDiffusionRequest();
     $repository = $drequest->getRepository();
     $path = $drequest->getPath();
     $path_map = id(new DiffusionPathIDQuery(array($path)))->loadPathIDs();
     $path_id = idx($path_map, $path);
     if (!$path_id) {
         return null;
     }
     $revisions = id(new DifferentialRevisionQuery())->withPath($repository->getID(), $path_id)->withStatus(DifferentialRevisionQuery::STATUS_OPEN)->setOrder(DifferentialRevisionQuery::ORDER_PATH_MODIFIED)->setLimit(10)->needRelationships(true)->execute();
     if (!$revisions) {
         return null;
     }
     $view = id(new DifferentialRevisionListView())->setRevisions($revisions)->setFields(DifferentialRevisionListView::getDefaultFields())->setUser($this->getRequest()->getUser())->loadAssets();
     $phids = $view->getRequiredHandlePHIDs();
     $handles = $this->loadViewerHandles($phids);
     $view->setHandles($handles);
     $panel = new AphrontPanelView();
     $panel->setId('pending-differential-revisions');
     $panel->setHeader('Pending Differential Revisions');
     $panel->appendChild($view);
     return $panel;
 }