AuthBucket\Bundle\OAuth2Bundle\Tests\TestBundle\Controller\DemoController::loginAction PHP Method

    public function loginAction(Request $request)
    {
        $session = $request->getSession();
        if ($request->attributes->has(Security::AUTHENTICATION_ERROR)) {
            $error = $request->attributes->get(Security::AUTHENTICATION_ERROR);
        } else {
            $error = $request->getSession()->get(Security::AUTHENTICATION_ERROR);
        }
        $_username = $session->get('_username');
        $_password = $session->get('_password');
        return $this->render('TestBundle:demo:login.html.twig', ['error' => $error, '_username' => $_username, '_password' => $_password]);
    }