From 1c9a7411f8500ad29eb53a2226d5ee3b2729d219 Mon Sep 17 00:00:00 2001
From: Jonas Braathen <jonas@ponas.no>
Date: Fri, 23 Oct 2026 02:18:16 +0200
Subject: [PATCH] Replace unique_together with UniqueConstraint on OrderLine

---
 .../0004_orderline_unique_constraint.py       | 20 +++++++++++++++++++
 bbs/models.py                                 |  4 +++-
 2 files changed, 23 insertions(+), 1 deletion(-)
 create mode 100644 bbs/migrations/0004_orderline_unique_constraint.py

diff --git a/bbs/migrations/0004_orderline_unique_constraint.py b/bbs/migrations/0004_orderline_unique_constraint.py
new file mode 100644
index 0000000..cfe2fdc
--- /dev/null
+++ b/bbs/migrations/0004_orderline_unique_constraint.py
@@ -0,0 +1,20 @@
+# Generated by Django 5.2.18 on 2026-10-22 23:51
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("bbs", "0003_alter_order_order_sum"),
+    ]
+
+    operations = [
+        migrations.AlterUniqueTogether(
+            name="orderline",
+            unique_together=set(),
+        ),
+        migrations.AddConstraint(
+            model_name="orderline",
+            constraint=models.UniqueConstraint(fields=("order", "product"), name="unique_order_product"),
+        ),
+    ]
diff --git a/bbs/models.py b/bbs/models.py
index d463dd1..b9ddde0 100755
--- a/bbs/models.py
+++ b/bbs/models.py
@@ -171,7 +171,9 @@ class OrderLine(models.Model):
         return f"{self.amount} {self.product} ({self.unit_price} kr per)"
 
     class Meta:  # noqa: DJ012
-        unique_together = ("order", "product")
+        constraints = [
+            models.UniqueConstraint(fields=["order", "product"], name="unique_order_product"),
+        ]
 
 
 class Transaction(models.Model):