Extending mongoengine User model for SOCIAL_AUTH_USER_MODEL

[Diolor]

I need some help creating a custom User model, in order to extend it.

My models.py is :

from mongoengine.django.auth import User 

class User(User):
    """Extend Mongo Engine User model"""
    foo = ListField(default=[])

So I have updated the settings.py with:

MONGOENGINE_USER_DOCUMENT = 'apps.models.User'
AUTH_USER_MODEL =  'mongo_auth.MongoUser'
SOCIAL_AUTH_USER_MODEL =  'apps.models.User'

However on login I get:

ValidationError: ValidationError (UserSocialAuth:526fab8ac36b440b4a8f080b) (A ReferenceField only accepts DBRef or documents: ['user'])

I checked I saw that the 526fab8ac36b440b4a8f080b id is the user id in user_social_auth collection.

[omab]

I wasn't able to reproduce your error so far. Why are you defining AUTH_USER_MODEL to be different than the others?

[Diolor]

It looked it was a migration problem. The database was complaining to the new structure of the user and user_social_auth. The only clue is possibly because the foo =[] was not there. I deleted these two user collections (it is luckily in dev) and then run smoothly. No clue how to fix this if you do not want to delete the user collections.

I commented out the AUTH_USER_MODEL which was not necessary; if that had to do something.

[omab]

Looks like a mongoengine issue to me than PSA. Reopen if needed.

[Diolor]

Ok I found the problem. Just for the records, it was a MongoDB user authentication/privileges level.