function _first_time_perform(&$request, &$response)
 {
     if (!($ids = $this->dataspace->get('ids'))) {
         $response->write(close_popup_response($request));
         return;
     }
     parent::_first_time_perform($request, $response);
 }
 function _first_time_perform()
 {
     $data = $this->dataspace->export();
     if (!isset($data['ids']) || !is_array($data['ids'])) {
         return new close_popup_response(RESPONSE_STATUS_FAILURE);
     }
     $objects = $this->_get_objects_to_delete(array_keys($data['ids']));
     $grid =& $this->view->find_child('multi_delete');
     $grid->register_dataset(new array_dataset($objects));
     return parent::_first_time_perform();
 }
 function _first_time_perform(&$request, &$response)
 {
     $data = $this->dataspace->export();
     if (!isset($data['ids']) || !is_array($data['ids'])) {
         $request->set_status(REQUEST_STATUS_FAILURE);
         if ($request->has_attribute('popup')) {
             $response->write(close_popup_response($request));
         }
         return;
     }
     $objects = $this->_get_objects_to_delete(array_keys($data['ids']));
     $grid =& $this->view->find_child('multi_delete');
     $grid->register_dataset(new array_dataset($objects));
     parent::_first_time_perform(&$request, &$response);
 }