from django.db import models
from django.db.models.fields import AutoField
from django.contrib.auth.models import User
from fields import UUIDField

if type(User._meta.pk) != type(UUIDField()):
    for f in User._meta.local_fields:
        if f.name == 'email':
            f.null = False
            f.blank = False
        if f.name == 'id':
            User._meta.local_fields.remove(f)
    User._meta.pk = None
    uuidfield = UUIDField(primary_key=True)
    User.add_to_class("id", uuidfield)
    temp = User._meta.local_fields.pop()
    User._meta.local_fields = [temp] + User._meta.local_fields