core-jgi/db/ddlutils/postgresql/functions/nextBusinessDay.sql

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CREATE FUNCTION nextbusinessday(p_date timestamp with time zone, p_ad_client_id numeric) RETURNS timestamp with time zone
AS $$
/**
*This file is part of Adempiere ERP Bazaar
*http://www.adempiere.org
*
*Copyright (C) 2007 Teo Sarca
*
*This program is free software; you can redistribute it and/or
*modify it under the terms of the GNU General Public License
*as published by the Free Software Foundation; either version 2
*of the License, or (at your option) any later version.
*
*This program is distributed in the hope that it will be useful,
*but WITHOUT ANY WARRANTY; without even the implied warranty of
*MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
*GNU General Public License for more details.
*
*You should have received a copy of the GNU General Public License
*along with this program; if not, write to the Free Software
*Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.of
*
* Converted to PostgreSQL by Tony Snook,
* tspc@dodo.com.au
*/
DECLARE
v_nextDate date := trunc(p_Date);
v_offset numeric := 0;
v_Saturday numeric := TO_CHAR(TO_DATE('2000-01-01', 'YYYY-MM-DD'), 'D');
v_Sunday numeric := (case when v_Saturday = 7 then 1 else v_Saturday + 1 end);
v_isHoliday boolean := true;
nbd C_NonBusinessDay%ROWTYPE;
begin
v_isHoliday := true;
loop
SELECT CASE TO_CHAR(v_nextDate,'D')::numeric
WHEN v_Saturday THEN 2
WHEN v_Sunday THEN 1
ELSE 0
END INTO v_offset;
v_nextDate := v_nextDate + v_offset::integer;
v_isHoliday := false;
FOR nbd IN SELECT *
FROM C_NonBusinessDay
WHERE AD_Client_ID=p_AD_Client_ID and IsActive ='Y' and Date1 >= v_nextDate
ORDER BY Date1
LOOP
exit when v_nextDate <> trunc(nbd.Date1);
v_nextDate := v_nextDate + 1;
v_isHoliday := true;
end loop;
exit when v_isHoliday=false;
end loop;
--
return v_nextDate::timestamp with time zone;
end;
$$
LANGUAGE plpgsql;