UUID Is not JSON Serializable (dumpdata)

Question

I'm having an issue with the command dumpdata. I'm using django-uuidfield as primary key for a few of my models, however; whenever I try to run dumpdata, I run into the error

TypeError: UUID('...') is not JSON serializable.

I found that inside of Django's DjangoJSONEncoder class that it doesn't check for the UUID object and will go to the default() of the parent class which throws the exception.

When I added a check, it seemed to work properly without any errors or warnings.

I'm not sure if that's a bug or I'm doing something wrong.

Note:

I didn't change any code inside django-uuidfield.

Thanks.

Edit:

The dumpdata works for another model where the uuidfield is not set to auto. The one that doesn't work has the uudfield set to auto.

Answer 1

In my models.py:

import uuid

In my model:

class MyUser(AbstractUser):
    id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)

and to solve this problem, I use this function write in MyUser:

def user_id(self):
    return self.id.__str__()

As the TypeError try you that type UUID is not JSON serializable,

so you should use string instead.

Hope it will help you.