DELIMITER $$
CREATE OR REPLACE DEFINER=`vn`@`localhost` TRIGGER `vn`.`workingHours_beforeInsert`
	BEFORE INSERT ON `workingHours`
	FOR EACH ROW
BEGIN
	IF (SELECT COUNT(*) FROM workingHours WHERE userId = NEW.userId AND DATE(timeIn) = util.VN_CURDATE()) > 0 THEN
		CALL util.throw ('ALREADY_LOGGED');
    END IF;
END$$
DELIMITER ;