ThinController.php

<?php

namespace Acme\DemoBundle\Controller;

class ThinController extends Controller
{

    /**
     * @Route("/", name="some_index_route")
     * @Template()
     */
    public function indexAction($limit)
    {
        $list = $this->get('model.list_handler')->getList($limit);
        return array('list' => $list);
    }

    /**
     * @Route("/{id}/edit", name="some_edit_route")
     * @Method({"GET"})
     * @Template()
     */
    public function editAction($id)
    {
        // the form_handler service depends an another finder_handler
        // which could load the entity within the init method
        $form = $this->get('model.form_handler')->createForm($id);
        return array('form' => $form);
    }

    /**
     * @Route("/{id}/edit", name="some_update_route")
     * @Method({"POST"})
     * @Template("AcmeDemoBundle:ThinController:edit.html.twig")
     */
    public function updateAction(Request $request, $id)
    {
        // throws exception when model is not found
        $form = $this->get('model.form_handler')->createForm($id);
        $form->bind($request);

        try {
            $entity = $form->getData();
            
            $this->get('model.persistence_handler')->update($entity);
        } catch (HandlerValidationException $e) {
            // some error handling here
        }

        $this->redirect($this->generateUrl('some_edit_route', array('id' => $entity->getId())));
    }

    /**
     * @Route("/{id}", name="some_show_route", requirements={"id" = "\d+"})
     * @Template()
     */
    public function showAction($id)
    {
        $model = $this->get('model.finder')->load($id);

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