salix/db/routines/vn/triggers/sharingCart_beforeUpdate.sql

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DELIMITER $$
CREATE OR REPLACE DEFINER=`root`@`localhost` TRIGGER `vn`.`sharingCart_beforeUpdate`
BEFORE UPDATE ON `sharingCart`
FOR EACH ROW
BEGIN
IF NEW.workerFk = NEW.workerSubstitute THEN
CALL util.throw ('worker and workerSubstitute must be different');
ELSE
DELETE sc FROM sharingCartDaily sc
WHERE sc.dated BETWEEN OLD.started AND OLD.ended AND
sc.ownerFk = OLD.workerFk AND
sc.substituteFk = OLD.workerSubstitute;
INSERT IGNORE INTO sharingCartDaily (ownerFk, substituteFk, dated)
SELECT NEW.workerFk, NEW.workerSubstitute, dated
FROM time
WHERE dated BETWEEN NEW.started AND NEW.ended;
END IF;
END$$
DELIMITER ;