db/routines/vn/triggers/travel_beforeInsert.sql

@@ -16,5 +16,9 @@ BEGIN
 	IF NEW.awbFk IS NOT NULL THEN
 		CALL travel_throwAwb(NEW.id);
 	END IF;
+
+	IF NEW.availabled < NEW.landed THEN
+		CALL util.throw('The travel availabled cannot be earlier than landed');
+	END IF;
 END$$
 DELIMITER ;

db/routines/vn/triggers/travel_beforeUpdate.sql

@@ -40,5 +40,9 @@ BEGIN
 	IF (NOT(NEW.awbFk <=> OLD.awbFk)) AND NEW.awbFk IS NOT NULL THEN
 		CALL travel_throwAwb(NEW.id);
 	END IF;
+
+	IF NEW.availabled < NEW.landed THEN
+		CALL util.throw('The travel availabled cannot be earlier than landed');
+	END IF;
 END$$
 DELIMITER ;