Action::error PHP Method

    protected function error($message, $ajax = false)
    {
        Addons::hook('core_filter_error_message', $message);
        $this->_dispatch_jump($message, 0, $ajax);
    }

 protected function error($message, $ajax = 0)
 {
     if (!$this->get("jumpUrl")) {
         if ($_SERVER["HTTP_REFERER"]) {
             $default_jump = $_SERVER["HTTP_REFERER"];
         } else {
             $default_jump = u("Index/main");
         }
         $this->assign("jumpUrl", $default_jump);
     }
     parent::error($message, $ajax);
 }