public function mainMenuAction()
 {
     $menuModel = new MenuModel();
     $date = $menuModel->getMainMenu(Router::getLanguage());
     $args = self::menuArray($date);
     self::$main_menu_array = $args;
     if (Session::hasUser('admin')) {
         $menuModel = new MenuModel();
         $date = $menuModel->getAdminMenu();
         $args_admin = self::menuArray($date);
         foreach ($args_admin as $k => $v) {
             if ($v['alias_menu'] == 'admin') {
                 unset($v['child']);
                 $args[$k] = $v;
             }
         }
     }
     return $this->render_main_menu($args);
 }