/**
  * @param string $route  URL after processed with url rules (by method Router::UrlToRouteAndParams())
  * @param string $url Complete url similar to one returned by method Router::getUrl().
  * @throws PageNotFoundException
  */
 public static function alert($route, $url)
 {
     $e = new PageNotFoundException("Page {$url} not found");
     $e->setRoute($route);
     $e->setUrl($url);
     throw $e;
 }