/**
  * attachments_mass_update
  *
  * @param void
  * @return null
  */
 function attachments_mass_update()
 {
     if (!$this->active_object->canEdit($this->logged_user)) {
         $this->httpError(HTTP_ERR_FORBIDDEN, null, true, $this->request->isApiCall());
     }
     // if
     if ($this->request->isSubmitted()) {
         $action = $this->request->post('action');
         if (!in_array($action, array('move_to_trash'))) {
             $this->httpError(HTTP_ERR_BAD_REQUEST, 'Invalid action');
         }
         // if
         $objects = ProjectObjects::findByIds($this->request->post('objects'));
         $operations_performed = 0;
         foreach ($objects as $object) {
             if ($action == 'move_to_trash') {
                 $operation = $object->moveToTrash();
             }
             // if
             if ($operation && !is_error($operation)) {
                 $operations_performed++;
             }
             // if
         }
         // foreach
         db_commit();
         if ($action == 'move_to_trash') {
             $message = lang(':count objects moved to trash', array('count' => $operations_performed));
         }
         // if
         flash_success($message, null, true);
         $this->redirectToUrl($this->active_object->getAttachmentsUrl());
     }
     // if
 }