public static function mayOperateOn($oUser, $mObject, $sOperation)
 {
     if (parent::mayOperateOn($oUser, $mObject, $sOperation)) {
         return true;
     }
     return $mObject->isNew();
 }
 public static function ignoreRights($bIgnore = true)
 {
     self::$IGNORE_RIGHTS = $bIgnore;
 }