libreccm-legacy/ccm-core/pdl/com/arsdigita/messaging/query-getMessageTree.pg.pdl

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//
// Copyright (C) 2002-2004 Red Hat Inc. All Rights Reserved.
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public License
// as published by the Free Software Foundation; either version 2.1 of
// the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
// $Id: query-getMessageTree.pg.pdl 287 2005-02-22 00:29:02Z sskracic $
// $DateTime: 2004/08/16 18:10:38 $
model com.arsdigita.messaging;
// Use this query to retrieve all related messages in a threaded
// discussion. The modification of the sort_key column is required
// to get level 0 message to sort correctly with respect to their
// children.
query getMessageTree {
BigDecimal root;
String sortKey;
BigDecimal id;
BigDecimal object;
do {
select message_id,
object_id,
coalesce(root_id,message_id) as root_id,
coalesce(sort_key,'---') as sort_key
from messages
order by root_id, sort_key
} map {
id = message_id;
object = object_id;
root = root_id;
sortKey = sort_key;
}
}