class DefaultController extends Controller
{
    /**
     * Homepage
     *
     * @Route("/", name="homepage")
     * @Template()
     */
    public function indexAction()
    {
        return array();
    }

    /**
     * Finds and displays a Tren entity.
     *
     * @Route("/{slug}.html", name="tren_show")
     * @Template()
     */
    public function showAction($slug)
    {
        $em = $this->getDoctrine()->getEntityManager();
        $entity = $em->getRepository('MyFrontendBundle:Tren')->findOneBySlug($slug);

        if (!$entity) {
            throw $this->createNotFoundException('Podana strona nie istnieje!');
        }

        return array('entity' => $entity);
    }

    /**
     * Lists all Tren entities as ul/li/a menu.
     *
     * @Template()
     */
    public function menuAction()
    {
        $em = $this->getDoctrine()->getEntityManager();
        $entities = $em->getRepository('MyFrontendBundle:Tren')->findAll();
        return array('entities' => $entities);
    }
}

Listing 28.4. Trzy akcje kontrolera DefaultController

Rozdział 28. Generowanie menu na podstawie zawartości bazy danych