public function index() { $cityDAO = new CityDAO(DataSource::getInstance()); $this->registry->template->cities = $cityDAO->findByAll_Show(); $this->registry->template->tile_title = 'Danh sách tỉnh/thành'; $this->registry->template->tile_content = 'admin/city-index.php'; $this->registry->template->show('admin/layout/admin.php'); }