/**
  * 
  * @Route("/feedback", name="feedback")
  */
 public function feedbackAction(Request $request)
 {
     $feedback = new Feedback();
     if ($this->get('security.context')->isGranted('IS_AUTHENTICATED_REMEMBERED')) {
         $user = $this->getUser();
         $feedback->setName(sprintf("%s %s", $user->getName(), $user->getSurname()));
         $feedback->setEmail($user->getEmail());
     }
     $form = $this->createFormBuilder($feedback)->add('name', 'text', array('constraints' => array(new NotBlank(), new Length(array('max' => 100)))))->add('email', 'email', array('constraints' => array(new NotBlank(), new Length(array('max' => 100)))))->add('subject', 'text', array('constraints' => array(new NotBlank(), new Length(array('max' => 100)))))->add('message', 'textarea', array('constraints' => array(new NotBlank(), new Length(array('max' => 1000)))))->getForm();
     //when the form is posted this method prefills entity with data from form
     $form->handleRequest($request);
     if ($form->isValid()) {
         $em = $this->getDoctrine()->getManager();
         // save to db
         $em->persist($feedback);
         $em->flush();
         return $this->userFeedbackSavedAction();
     }
     return $this->render('common/feedback.html.twig', array('form' => $form->createView()));
 }