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--
-- $Id$
--
-- This file is part of the OpenLink Software Virtuoso Open-Source (VOS)
-- project.
--
-- Copyright (C) 1998-2012 OpenLink Software
--
-- This project is free software; you can redistribute it and/or modify it
-- under the terms of the GNU General Public License as published by the
-- Free Software Foundation; only version 2 of the License, dated June 1991.
--
-- This program 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
-- General Public License for more details.
--
-- You should have received a copy of the GNU General Public License along
-- with this program; if not, write to the Free Software Foundation, Inc.,
-- 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
--
create function WV.WIKI.NEW_PLAIN_PRED_ID () returns integer
{
declare _res integer;
while (1)
{
_res := 100000000 + rand (899999999); -- exactly 9-digit integers
if (not exists (select top 1 1 from WV.WIKI.PREDICATE where PRED_ID = _res))
return _res;
}
}
;
create function WV.WIKI.NEW_PLAIN_SEM_ID () returns integer
{
declare _res integer;
while (1)
{
_res := 100000000 + rand (899999999); -- exactly 9-digit integers
if (not exists (select top 1 1 from WV.WIKI.SEMANTIC_OBJ where SO_ID = _res))
return _res;
}
}
;
create procedure WV.WIKI.ADD_FACT (in _topic WV.WIKI.TOPICINFO,
in _predicate varchar,
in _subject varchar,
in _type varchar)
{
declare exit handler for sqlstate '*' {
--dbg_obj_princ (__SQL_STATE, ':', __SQL_MESSAGE);
resignal;
}
;
declare _predid int;
_predid := (select PRED_ID from WV.WIKI.PREDICATE where PRED_DESCR = _predicate);
if (_predid is null)
{
_predid := WV.WIKI.NEW_PLAIN_PRED_ID ();
insert into WV.WIKI.PREDICATE (PRED_CLUSTER_ID, PRED_ID, PRED_DESCR)
values (_topic.ti_cluster_id, _predid, _predicate);
}
if (not exists (select 1 from WV.WIKI.SEMANTIC_OBJ
where SO_CLUSTER_ID = _topic.ti_cluster_id
and SO_OBJECT_ID = _topic.ti_id
and SO_PRED = _predid
and SO_SUBJECT = _subject))
insert into WV.WIKI.SEMANTIC_OBJ (SO_CLUSTER_ID, SO_ID,SO_OBJECT_ID,SO_PRED,SO_SUBJECT,SO_TYPE)
values (_topic.ti_cluster_id, WV.WIKI.NEW_PLAIN_SEM_ID(), _topic.ti_id, _predid, _subject, _type);
}
;
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