/**
* Validates all modified columns of given GroupUser object.
* If parameter $columns is either a single column name or an array of column names
* than only those columns are validated.
*
* NOTICE: This does not apply to primary or foreign keys for now.
*
* @param GroupUser $obj The object to validate.
* @param mixed $cols Column name or array of column names.
*
* @return mixed TRUE if all columns are valid or the error message of the first invalid column.
*/
public static function doValidate(GroupUser $obj, $cols = null)
{
$columns = array();
if ($cols) {
$dbMap = Propel::getDatabaseMap(GroupUserPeer::DATABASE_NAME);
$tableMap = $dbMap->getTable(GroupUserPeer::TABLE_NAME);
if (!is_array($cols)) {
$cols = array($cols);
}
foreach ($cols as $colName) {
if ($tableMap->containsColumn($colName)) {
$get = 'get' . $tableMap->getColumn($colName)->getPhpName();
$columns[$colName] = $obj->{$get}();
}
}
} else {
if ($obj->isNew() || $obj->isColumnModified(GroupUserPeer::GRP_UID)) {
$columns[GroupUserPeer::GRP_UID] = $obj->getGrpUid();
}
if ($obj->isNew() || $obj->isColumnModified(GroupUserPeer::USR_UID)) {
$columns[GroupUserPeer::USR_UID] = $obj->getUsrUid();
}
}
return BasePeer::doValidate(GroupUserPeer::DATABASE_NAME, GroupUserPeer::TABLE_NAME, $columns);
}