Ensure that the location_id is never NULL in the stock and stock_log table (checked by an INSERT trigger, sets the products default location if empty)

migrations/0095.sql

@@ -1,3 +1,19 @@
+CREATE TRIGGER set_products_default_location_if_empty_stock AFTER INSERT ON stock
+BEGIN
+	UPDATE stock
+	SET location_id = (SELECT location_id FROM products where id = product_id)
+	WHERE id = NEW.id
+		AND location_id IS NULL;
+END;
+
+CREATE TRIGGER set_products_default_location_if_empty_stock_log AFTER INSERT ON stock_log
+BEGIN
+	UPDATE stock_log
+	SET location_id = (SELECT location_id FROM products where id = product_id)
+	WHERE id = NEW.id
+		AND location_id IS NULL;
+END;
+
 DROP VIEW stock_current_locations;
 CREATE VIEW stock_current_locations AS
 SELECT 
@@ -8,4 +24,4 @@ SELECT
 	FROM stock s
 	JOIN products p ON s.product_id = p.id
 	JOIN locations l on IFNULL(s.location_id, p.location_id) = l.id
-GROUP BY s.product_id, IFNULL(s.location_id, p.location_id)
+GROUP BY s.product_id, IFNULL(s.location_id, p.location_id);