DELIMITER $$
CREATE OR REPLACE DEFINER=`vn`@`localhost` TRIGGER `vn`.`travelThermograph_beforeUpdate`
	BEFORE UPDATE ON `travelThermograph`
	FOR EACH ROW
BEGIN
	SET NEW.editorFk = account.myUser_getId();

	IF NEW.travelFk IS NULL AND
		(SELECT COUNT(*) FROM travelThermograph
			WHERE thermographFk = NEW.thermographFk
				AND travelFk IS NULL
				AND id <> NEW.id) > 0
	THEN
		CALL util.throw('Duplicate thermographFk without travelFk not allowed.');
	END IF;
END$$
DELIMITER ;