gistfile1.txt

    /**
     * @Route("/security/login",)
     * @Template()
     */
    public function loginAction() {
        if ($this->get("security.context")->isGranted('IS_AUTHENTICATED_FULLY')) {
            return $this->redirect($this->generateUrl('mon_site_blog_default_index'));
        }

        $request = $this->getRequest();
        $session = $request->getSession();

        // get the login error if there is one
        if ($request->attributes->has(SecurityContext::AUTHENTICATION_ERROR)) {
            $error = $request->attributes->get(SecurityContext::AUTHENTICATION_ERROR);
        } else {
            $error = $session->get(SecurityContext::AUTHENTICATION_ERROR);
        }

        if (!empty ($error)) {
            $session->getFlashBag()->set('error', $error->getMessage());
        }
        return array(
            // last username entered by the user
            'last_username' => $session->get(SecurityContext::LAST_USERNAME),
            'error' => $error,
        );
    }