salix/db/routines/vn/procedures/sales_merge.sql

42 lines
1007 B
SQL

DELIMITER $$
CREATE OR REPLACE DEFINER=`vn-admin`@`localhost` PROCEDURE `vn`.`sales_merge`(vTicketFk INT)
BEGIN
DECLARE EXIT HANDLER FOR SQLEXCEPTION
BEGIN
ROLLBACK;
RESIGNAL;
END;
CREATE OR REPLACE TEMPORARY TABLE tSalesToPreserve
(PRIMARY KEY (id))
ENGINE = MEMORY
SELECT s.id, s.itemFk, SUM(s.quantity) newQuantity
FROM sale s
JOIN item i ON i.id = s.itemFk
JOIN itemType it ON it.id = i.typeFk
WHERE s.ticketFk = vTicketFk
AND it.isMergeable
GROUP BY s.itemFk, s.price, s.discount;
START TRANSACTION;
UPDATE sale s
JOIN tSalesToPreserve stp ON stp.id = s.id
SET s.quantity = newQuantity
WHERE s.ticketFk = vTicketFk;
DELETE s.*
FROM sale s
LEFT JOIN tSalesToPreserve stp ON stp.id = s.id
JOIN item i ON i.id = s.itemFk
JOIN itemType it ON it.id = i.typeFk
WHERE s.ticketFk = vTicketFk
AND stp.id IS NULL
AND it.isMergeable;
COMMIT;
DROP TEMPORARY TABLE tSalesToPreserve;
END$$
DELIMITER ;