From 9e4a2c906b9c74082b28386b262406ceef4635ef Mon Sep 17 00:00:00 2001
From: Martin Meyerhoff <mamhoff@gmail.com>
Date: Fri, 27 Oct 2023 10:50:10 +0200
Subject: [PATCH] Add foreign key constraint to Spree::OrderPromotions table

This adds a foreign key constraint that makes sure at the database level
that we don't have non-existent order IDs in the spree_orders_promotions
table.
---
 .../20231027084517_add_order_promotions_foreign_key.rb | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 core/db/migrate/20231027084517_add_order_promotions_foreign_key.rb

diff --git a/core/db/migrate/20231027084517_add_order_promotions_foreign_key.rb b/core/db/migrate/20231027084517_add_order_promotions_foreign_key.rb
new file mode 100644
index 00000000000..8660de79afc
--- /dev/null
+++ b/core/db/migrate/20231027084517_add_order_promotions_foreign_key.rb
@@ -0,0 +1,10 @@
+class AddOrderPromotionsForeignKey < ActiveRecord::Migration[7.0]
+  def up
+    Spree::OrderPromotion.left_joins(:order).where(spree_orders: { id: nil }).delete_all
+    add_foreign_key :spree_orders_promotions, :spree_orders, column: :order_id, validate: false, on_delete: :cascade
+  end
+
+  def down
+    remove_foreign_key :spree_orders_promotions, :spree_orders
+  end
+end