7.9.1 A Foreign Key Relationship

src/lists/migrations/0001_initial.py

@@ -0,0 +1,23 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.29 on 2020-11-10 12:36
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Item',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('text', models.TextField(default='')),
+            ],
+        ),
+    ]

src/lists/migrations/0002_auto_20201111_0340.py

@@ -0,0 +1,27 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.29 on 2020-11-11 03:40
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('lists', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='List',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+            ],
+        ),
+        migrations.AddField(
+            model_name='item',
+            name='list',
+            field=models.ForeignKey(default=None, on_delete=django.db.models.deletion.CASCADE, to='lists.List'),
+        ),
+    ]

src/lists/models.py

@@ -1,4 +1,8 @@
 from django.db import models
 
+class List(models.Model):
+    pass
+
 class Item(models.Model):
-    text = models.TextField(default='')
+    text = models.TextField(default='')
+    list = models.ForeignKey(List, default=None)