from django.db import migrations, models def add_book(apps, schema_editor): apps.get_model("migration_test_data_persistence", "Book").objects.using( schema_editor.connection.alias, ).create( title="I Love Django", ) class Migration(migrations.Migration): dependencies = [("migration_test_data_persistence", "0001_initial")] operations = [ migrations.RunPython( add_book, ), migrations.CreateModel( name="Unmanaged", fields=[ ( "id", models.BigAutoField( auto_created=True, primary_key=True, serialize=False, verbose_name="ID", ), ), ("title", models.CharField(max_length=100)), ], options={ "managed": False, }, ), migrations.AlterField( model_name="book", name="id", field=models.BigAutoField( auto_created=True, primary_key=True, serialize=False, verbose_name="ID" ), ), ]