public static function getGameUserByUserNameByExample($userName)
 {
     if (!empty($userName)) {
         $user = null;
         $users = GameUsers::findByExample(DBUtils::getConnection(), GameUsers::create()->setUserName($userName));
         if (count($users) > 0) {
             $user = $users[0];
             unset($users);
             if (!empty($user)) {
                 $userId = $user->getUserId();
                 if (!empty($userId)) {
                     return $user;
                 }
             }
         }
         unset($users);
     }
     return $user;
 }