Listing REST example

gistfile1.php

<?php

namespace M6\Bundle\MyRESTBundle\Controller;

use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use Symfony\Component\HttpFoundation\Response;
use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;
use Sensio\Bundle\FrameworkExtraBundle\Configuration\Method;

use M6\Bundle\MyRESTBundle\Form\TalkType;
use M6\Bundle\MyRESTBundle\Entity\Talk;

class MyRESTController extends Controller
{
    /**
     * Simply list talks
     * 
     * @Route("/talks")
     * @Method("GET")
     */
    public function simplyListAction() {
        $talks = $this->get('doctrine')->getRepository('M6LftRestBundle:Talk')->findAll();
    
        $response = $this->render('M6LftRestBundle:Default:list.xml.twig', array('talks' => $talks));
        $response->headers->set('Content-Type', 'text/xml');
    
        return $response;
    }
    
    /**
     * List talks with a filtering params
     * 
     * @Route("/talks)
     * @Method("GET")
     */
    public function filteredListAction() {
        $session = $this->getRequest()->get('session');
        
        if ($session && preg_match('#[0-9}{4}-[0-9]{2}-[0-9]{2}#', $session)) {
            $talks = $this->get('doctrine')->getRepository('M6LftRestBundle:Talk')->findBy(array(
                'session' => new \DateTime($session)
        	));	
        } elseif ($session) {
            return new Response('Bad parameter', 400);
        } else {
        	$talks = $this->get('doctrine')->getRepository('M6LftRestBundle:Talk')->findAll();	
        }
    
        $response = $this->render('M6LftRestBundle:Default:list.xml.twig', array('talks' => $talks));
        $response->headers->set('Content-Type', 'text/xml');
    
        return $response;
    }
    
    /**
     * List talks with a filtering params and format choice
     * 
     * @Route("/talks.{_format}", requirements={"_format" = "json|xml"}, defaults={"_format" = "~"})
     * @Method("GET")
     */
    public function formatListAction() {
        if ($session = $this->getRequest()->get('session')) {
            $talks = $this->get('doctrine')->getRepository('M6LftRestBundle:Talk')->findBy(array(
            	'session' => new \DateTime($session)
        	));	
        } else {
        	$talks = $this->get('doctrine')->getRepository('M6LftRestBundle:Talk')->findAll();	
        }
    
        if ($this->getRequest()->get('_format') == 'json') {
        	$jsonTalks['talks'] = array();
        	foreach ($talks as $talk) {
        		$jsonTalk = new \stdClass();
        		$jsonTalk->id = $talk->getId();
        		$jsonTalk->author = $talk->getAuthor()->getName();
        		$jsonTalk->title = $talk->getTitle();
        		$jsonTalk->session = $talk->getSession()->format('m-d-Y');
    
        		$jsonTalks['talks'][] = $jsonTalk;
        	}
    
        	$response = new Response(json_encode($jsonTalks));
        	$response->headers->set('Content-Type', 'application/json');
        } else {
        	$response = $this->render('M6LftRestBundle:Default:list.xml.twig', array('talks' => $talks));
        	$response->headers->set('Content-Type', 'text/xml');
        };
    
        return $response;
    }
    
    /**
     * @Route("/talks")
     * @Method("POST")
     */
    public function addAction() {
        $talk = new Talk();

    	$form = $this->createForm(new TalkType(), $talk);
        $form->submit($_POST);

        if ($form->isValid()) {
        	$em = $this->get('doctrine')->getEntityManager('lftrest');
        	$em->persist($talk);
        	$em->flush();

            $response = $this->render('M6LftRestBundle:Default:detail.xml.twig', array('talk' => $talk), 201);

        	return $response;
        }

        return new Response('Invalid data', 422);
    }
}