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