Admin_UserController::roleTreeGetChildsByIdAction PHP Метод

    public function roleTreeGetChildsByIdAction()
    {
        $list = new User\Role\Listing();
        $list->setCondition("parentId = ?", intval($this->getParam("node")));
        $list->load();
        $roles = [];
        if (is_array($list->getItems())) {
            foreach ($list->getItems() as $role) {
                $roles[] = $this->getRoleTreeNodeConfig($role);
            }
        }
        $this->_helper->json($roles);
    }