simple crud aja

<?php
namespace Acme\TestBundle\Controller;

use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpFoundation\Request;
use Acme\TestBundle\Entity\Shouter;

/**
 * @Route("/acme")
 */
class HelloDbController extends Controller {

    /**
     * @Route("/insert_db/{msg}", name="hai_insert_db")
     */
    public function insertdbAction($msg = 'hallo world ')
    {

        $shouter = new Shouter();

        $shouter->setMessages($msg);
        $shouter->setDescription("lorema ipsuma");
        $shouter->setCreatedAt(new \DateTime("now"));
        $shouter->setUpdatedAt(new \DateTime("now"));

        $em = $this->getDoctrine()->getManager();
        $em->persist($shouter);
        $em->flush();

        return new Response('Created shouter id '.$shouter->getId());
    }

    /**
     * @Route("/hai_db", name="hai_db")
     */
    public function greatingAction()
    {
        $repository = $this->getDoctrine()->getRepository('AcmeTestBundle:Shouter');
        $shouters   = $repository->findAll();

        $html = $this->container
        ->get('templating')
        ->render(
                'AcmeTestBundle:Hoi:list.html.twig',
                array('shouters' => $shouters)
        );

        return new Response($html);
    }

    /**
     *
     * @Route("/hai_form_db", name="hai_form_add_db1")
     */
    public function formAdd1Action(Request $request) {
        $shouter = new Shouter();

        $form = $this->createFormBuilder($shouter)
        ->add('messages', 'text')
        ->add('description', 'text')
        ->add('createdAt', 'datetime')
        ->add('updatedat', 'datetime')
        ->add('save', 'submit', array('label' => 'Create Hello World'))
        ->getForm();

        //handle save
        $form->handleRequest($request);
        if ($form->isValid()) {
            $data = $form->getData();

            $em = $this->getDoctrine()->getManager();
            $em->persist($data);
            $em->flush();
            //return $this->redirect('task_success');
        }

        return $this->render('AcmeTestBundle:Hoi:add.html.twig', array(
                'form' => $form->createView(),
        ));
    }



}