public function renumberObjects()
 {
     if ((bool) $this->request->config->get('allow_automated_renumbering_of_objects_in_a_lot')) {
         $t_lot = new ca_object_lots($this->request->getParameter('lot_id', pInteger));
         if ($t_lot->getPrimaryKey()) {
             $t_lot->renumberObjects($this->opo_app_plugin_manager);
             if ($t_lot->numErrors()) {
                 foreach ($t_lot->getErrors() as $vs_error) {
                     $this->notification->addNotification($vs_error, __NOTIFICATION_TYPE_ERROR__);
                 }
             } else {
                 $this->notification->addNotification(_t('Renumbered contents of lot'), __NOTIFICATION_TYPE_INFO__);
             }
         }
     }
     return $this->Edit();
 }