From a80e048c2d054cb24fdc4a3c263eb75aace9c8a2 Mon Sep 17 00:00:00 2001
From: Bernd Bestel <bernd@berrnd.de>
Date: Thu, 30 Jun 2022 13:38:30 +0200
Subject: [PATCH] Optimized `product_barcodes` handling (references #1928)

---
 migrations/0195.sql | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 migrations/0195.sql

diff --git a/migrations/0195.sql b/migrations/0195.sql
new file mode 100644
index 00000000..9ba8409c
--- /dev/null
+++ b/migrations/0195.sql
@@ -0,0 +1,12 @@
+-- Delete once all barcodes without a valid product_id (those are not visible anywhere)
+DELETE FROM product_barcodes
+WHERE product_id NOT IN (SELECT id FROM products);
+
+CREATE TRIGGER prevent_adding_barcodes_for_not_existing_products AFTER INSERT ON product_barcodes
+BEGIN
+	SELECT CASE WHEN((
+		SELECT 1
+		FROM products p
+		WHERE id = NEW.product_id
+	) ISNULL) THEN RAISE(ABORT, "product_id doesn't reference a existing product") END;
+END;