core-jgi/db/database/Functions/C_PaymentTerm_Discount.sql

72 lines
2.5 KiB
SQL

CREATE OR REPLACE FUNCTION paymentTermDiscount
(
Amount IN NUMBER,
Currency_ID IN NUMBER,
PaymentTerm_ID IN NUMBER,
DocDate IN DATE,
PayDate IN DATE
)
RETURN NUMBER
/*************************************************************************
* The contents of this file are subject to the Adempiere License. You may
* obtain a copy of the License at http://www.adempiere.org/license.html
* Software is on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either
* express or implied. See the License for details. Code: Adempiere ERP+CRM
* Copyright (C) 1999-2001 Jorg Janke, ComPiere, Inc. All Rights Reserved.
*************************************************************************
* $Id: C_PaymentTerm_Discount.sql,v 1.1 2006/04/21 17:51:58 jjanke Exp $
***
* Title: Calculate Discount
* Description:
* Calculate the allowable Discount Amount of the Payment Term
*
* Test: SELECT C_PaymentTerm_Discount(17777, 103, '10-DEC-1999') FROM DUAL
************************************************************************/
AS
Discount NUMBER := 0;
CURSOR Cur_PT IS
SELECT *
FROM C_PaymentTerm
WHERE C_PaymentTerm_ID = PaymentTerm_ID;
Discount1Date DATE;
Discount2Date DATE;
Add1Date NUMBER := 0;
Add2Date NUMBER := 0;
BEGIN
-- No Data - No Discount
IF (Amount IS NULL OR PaymentTerm_ID IS NULL OR DocDate IS NULL) THEN
RETURN 0;
END IF;
FOR p IN Cur_PT LOOP -- for convineance only
-- DBMS_OUTPUT.PUT_LINE(p.Name || ' - Doc = ' || TO_CHAR(DocDate));
Discount1Date := TRUNC(DocDate + p.DiscountDays + p.GraceDays);
Discount2Date := TRUNC(DocDate + p.DiscountDays2 + p.GraceDays);
-- Next Business Day
IF (p.IsNextBusinessDay='Y') THEN
-- Not fully correct - only does weekends (7=Saturday, 1=Sunday)
SELECT DECODE(TO_CHAR(Discount1Date,'D'), '7',2, '1',1, 0),
DECODE(TO_CHAR(Discount2Date,'D'), '7',2, '1',1, 0)
INTO Add1Date, Add2Date
FROM DUAL;
Discount1Date := Discount1Date+Add1Date;
Discount2Date := Discount2Date+Add2Date;
END IF;
-- Discount 1
IF (Discount1Date >= TRUNC(PayDate)) THEN
-- DBMS_OUTPUT.PUT_LINE('Discount 1 ' || TO_CHAR(Discount1Date) || ' ' || p.Discount);
Discount := Amount * p.Discount / 100;
-- Discount 2
ELSIF (Discount2Date >= TRUNC(PayDate)) THEN
-- DBMS_OUTPUT.PUT_LINE('Discount 2 ' || TO_CHAR(Discount2Date) || ' ' || p.Discount2);
Discount := Amount * p.Discount2 / 100;
END IF;
END LOOP;
--
RETURN ROUND(NVL(Discount,0), 2); -- fixed rounding
END paymentTermDiscount;
/