public function signInFormSucceeded($form, $values)
    {
        $user = $this->getUser();

            if ($values->remember) {
            $user->setExpiration('14 days', FALSE);
        } else {
            $user->setExpiration('20 minutes', TRUE);
        }

        try {
            $user->login($values->username, $values->password);

                        if($user->getRoles() == "admin") //tady je asi chyba
                        {
                            $this->redirect('Admin:');
                        }

                        //$this->redirect('Homepage:');

        } catch (Nette\Security\AuthenticationException $e) {
            $form->addError($e->getMessage());
        }
    }