Edit file File name : MenuItemModel.php Content :<?php /* * This file is part of the Kimai time-tracking app. * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace App\Utils; use KevinPapst\AdminLTEBundle\Model\MenuItemModel as BaseMenuItemModel; class MenuItemModel extends BaseMenuItemModel { private $childRoutes = []; public function setChildRoutes(array $routes): MenuItemModel { $this->childRoutes = $routes; return $this; } public function addChildRoute(string $route): MenuItemModel { $this->childRoutes[] = $route; return $this; } public function isChildRoute(string $route): bool { return \in_array($route, $this->childRoutes); } } Save