Django and uuid with PostgreSQL

[Andrea Posi]

I'm creating a rest api using Django and DRF. I don't want to expose IDs directly to clients so I'm trying to setup my models like this example:

class AbstractGuidModel(models.Model):

    uuid = models.UUIDField(blank=True, default=uuid.uuid4, unique=True, editable=False)

    class Meta:

        abstract = True

class MyModel(AbstractGuidModel):

    name = models.CharField(max_length=NAME_LENGTH)

Since the AbstractGuidModel has default=uuid.uuid4, uuid are generated by python code and migrations look like:

CREATE TABLE "MyModel" ( ... "uuid" uuid NOT NULL UNIQUE, ... );

I've read Postgres has an extension for generating automatically uuids.

Once extension is installed, how can I tell django to let database use his own extension and not letting him create them with the Python uuid module?

[Tim Graham]

The SQL looks correct -- it's not using anything Python related. Are you encountering some error?

[Andrea Posi]

Yes, it is actually correct, but I'd just like to force uuid generation at database level (postgres supports it) and not via python/django

I can modify the table with raw sql after migration and disable

default=uuid.uuid4

inside django models, but I'm looking for a better way to accomplish it