Ojs\UserBundle\Controller\SecurityController::confirmEmailAction PHP Méthode

    public function confirmEmailAction($code)
    {
        $session = $this->get('session');
        $em = $this->getDoctrine()->getManager();
        /** @var User $user */
        $user = $em->getRepository('OjsUserBundle:User')->findOneBy(['confirmation_token' => $code]);
        if (!$user) {
            $session->set('_security.main.target_path', $this->generateUrl('email_confirm', array('code' => $code)));
            return $this->redirectToRoute('login');
        }
        $flashBag = $session->getFlashBag();
        //check confirmation code
        if ($user->getToken() == $code) {
            $user->setToken(null);
            $user->setIsActive(true);
            $em->persist($user);
            $em->flush();
            $flashBag->add('success', 'You\'ve confirmed your email successfully!');
            return $this->redirectToRoute('myprofile');
        }
        $flashBag->add('error', 'There is an error while confirming your email address.' . '<br>Your confirmation link may be expired.');
        return $this->redirectToRoute('confirm_email_warning');
    }