supermarket shopping list relation

cookbook/migrations/0106_shoppinglist_supermarket.py

@@ -0,0 +1,19 @@
+# Generated by Django 3.1.5 on 2021-01-26 15:21
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('cookbook', '0105_auto_20210126_1604'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='shoppinglist',
+            name='supermarket',
+            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, to='cookbook.supermarket'),
+        ),
+    ]