public function index()
 {
     if ($this->method == 'POST' && isset($this->postData['username']) && isset($this->postData['password'])) {
         if (\Admin::checkAuthorization($this->postData['username'], $this->postData['password'])) {
             return $this->app->redirect($this->workURL);
         }
     }
     $error = array('user_undefined' => 'Пользователь неопределён');
     $this->app['error_local'] = $error;
     return $this->app['twig']->render($this->getTemplateName(__METHOD__));
 }