private function getUniqueUrl(NavItem $item) { $url = $item->getUrl(); $action = $item->getAction(); $params = $item->getParams(); if (isset($action)) { $url = $url . '?' . self::$action . '=' . $action; } if (isset($params)) { $url = $url . '&' . self::$params . '=' . $params; } return $url; }