Re: Error while customising Django User

Hi,

Thanks for your suggestion. Will try it out.

Thanks.

On Saturday, December 19, 2015 at 10:11:48 PM UTC+5:30, Abdoul Aziz Abdoulaye wrote:

Hello,
You can use django monkey patching for adding additional fields to User model

for your case it will look like this.

User.add_to_class('user_type', model.IntergerField())

Le vendredi 18 décembre 2015 11:55:16 UTC, Web Architect a écrit :

Hi,

I am new to Django and still under the process of learning. We are using an open source ecommerce platform - Oscar - for our online store. Oscar is based on Django.

I was trying to customise the Django User model by extending with some few extra fields/columns:

# file: your-project/apps/user/models.py  from django.db import models    
from django.contrib.auth.models import AbstractUser
  class User(AbstractUser):       user_type = models.IntegerField()

# use our own user model in settings.py  AUTH_USER_MODEL = "user.User"
With the above changes, when I run 'makemigration' followed by 'migrate', I am getting the following errors:
Running migrations:
  
  Rendering model states...Traceback (most recent call last):
  
  File "./manage.py", line 10, in <module>
  
    execute_from_command_line(sys.argv)
  
  File "/Users/pinakeebiswas/waltzz/lib/python2.7/site-packages/django/core/management/__init__.py", line 338, in execute_from_command_line
  
    utility.execute()
  
  File "/Users/pinakeebiswas/waltzz/lib/python2.7/site-packages/django/core/management/__init__.py", line 330, in execute
  
    self.fetch_command(subcommand).run_from_argv(self.argv)
  
  File "/Users/pinakeebiswas/waltzz/lib/python2.7/site-packages/django/core/management/base.py", line 393, in run_from_argv
  
    self.execute(*args, **cmd_options)
  
  File "/Users/pinakeebiswas/waltzz/lib/python2.7/site-packages/django/core/management/base.py", line 444, in execute
  
    output = self.handle(*args, **options)
  
  File "/Users/pinakeebiswas/waltzz/lib/python2.7/site-packages/django/core/management/commands/migrate.py", line 222, in handle
  
    executor.migrate(targets, plan, fake=fake, fake_initial=fake_initial)
  
  File "/Users/pinakeebiswas/waltzz/lib/python2.7/site-packages/django/db/migrations/executor.py", line 100, in migrate
  
    state.apps  # Render all real_apps -- performance critical
  
  File "/Users/pinakeebiswas/waltzz/lib/python2.7/site-packages/django/utils/functional.py", line 60, in __get__
  
    res = instance.__dict__[self.name] = self.func(instance)
  
  File "/Users/pinakeebiswas/waltzz/lib/python2.7/site-packages/django/db/migrations/state.py", line 166, in apps
  
    return StateApps(self.real_apps, self.models)
  
  File "/Users/pinakeebiswas/waltzz/lib/python2.7/site-packages/django/db/migrations/state.py", line 248, in __init__
  
    raise ValueError(msg.format(field=operations[0][1], model=lookup_model))
  
ValueError: Lookup failed for model referenced by field basket.Basket.owner: customer.User

I am not sure what's causing the above error. Certainly there could be models which would be dependent on the User model but I thought the makemigrations and migrate should be able to resolve those.
Would appreciate if someone could help me with resolving the above errors.
Thanks

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