# Generated by Django 3.2.8 on 2021-11-08 06:06 import uuid from django.db import migrations, models def create_uuid(apps, schema_editor): Example = apps.get_model("api", "example") for example in Example.objects.all(): example.uuid = uuid.uuid4() example.save(update_fields=["uuid"]) class Migration(migrations.Migration): dependencies = [ ("api", "0016_auto_20211018_0556"), ] operations = [ migrations.AddField( model_name="example", name="uuid", field=models.UUIDField(editable=False, blank=True, null=True), ), migrations.RunPython(create_uuid, reverse_code=migrations.RunPython.noop), migrations.AlterField( model_name="example", name="uuid", field=models.UUIDField(default=uuid.uuid4, db_index=True, unique=True) ), ]