protected function fetchFormContent(Codendi_Request $request, PFUser $current_user)
 {
     $html = parent::fetchFormContent($request, $current_user);
     $html .= $this->fetchFields($this->artifact, $request->get('artifact'));
     $html .= '<input type="hidden" name="from_overlay" value="1">';
     $html .= $this->fetchSubmitAndCancelButtons($current_user);
     return $html;
 }
 protected function enhanceRedirect(Codendi_Request $request)
 {
     $from_aid = $request->get('from_aid');
     if ($from_aid != null) {
         $this->redirect->query_parameters['from_aid'] = $from_aid;
     }
     parent::enhanceRedirect($request);
 }