public static function reviewForm($url_parts)
 {
     require_once 'Review.model.php';
     require_once 'User.model.php';
     $data = array();
     if (count($url_parts) > 0) {
         $user_id = $url_parts[0];
         try {
             $result = ReviewModel::checkIfReviewExists($user_id);
             $data['rates'] = ReviewModel::getRates();
             $data['user_id'] = $user_id;
             $data['template'] = 'reviewForm.html';
         } catch (Exception $e) {
             $data['error'] = $e->getMessage();
             $data['template'] = 'error.html';
         }
     }
     return $data;
 }