public function mayOperate($sOperation, $oUser = false)
{
$oUser = UserGroupPeer::getRightsUser($oUser);
$bIsAllowed = false;
if ($oUser && ($this->isNew() || $this->getCreatedBy() === $oUser->getId()) && UserGroupPeer::mayOperateOnOwn($oUser, $this, $sOperation)) {
$bIsAllowed = true;
} else {
if (UserGroupPeer::mayOperateOn($oUser, $this, $sOperation)) {
$bIsAllowed = true;
}
}
FilterModule::getFilters()->handleUserGroupOperationCheck($sOperation, $this, $oUser, array(&$bIsAllowed));
return $bIsAllowed;
}