public function indexAction()
    {
    $email = new Email();
    $form = $this->createForm(new EmailType(), $email);

    $request = $this->getRequest();
    if ($request->getMethod() == 'POST') {
        $form->bindRequest($request);

        if ($form->isValid()) {
            $email = $form->getData();

            $em = $this->getDoctrine()->getEntityManager();
            $em->persist($email);
            $em->flush();
            $message = \Swift_Message::newInstance()
        ->setSubject('Hello Email')
        ->setFrom('infos@mapannonces.com')
        ->setTo($email->getEmail())
        ->setBody($this->renderView('MapDemoBundle:Demo:email.txt.twig'))    ;
        $this->get('mailer')->send($message);




            return $this->redirect( $this->generateUrl('MapDemoBundle_email') );

        }
    }

    return $this->render('MapDemoBundle:Demo:index.html.twig', array(
        'form' => $form->createView()
    ));
    }