Django oauth2 extend auth.user result in errors

[Shekar Tippur]

I am sorry if this is a duplicate. I did post the same on Django REST Framework. I was not sure where I should post this.

I am trying to add some custom fields to oauth2. I am using python 3.4 and django 1.8.

I am having varying errors. But with the combination I got below, the error I get is

ERRORS:

logistics.CustomUser.user: (fields.E301) Field defines a relation with the model 'auth.User', which has been swapped out.

HINT: Update the relation to point at 'settings.AUTH_USER_MODEL'.

oauth2_provider.AccessToken.application: (fields.E304) Reverse accessor for 'AccessToken.application' clashes with reverse accessor for 'AccessToken.user'.

HINT: Add or change a related_name argument to the definition for 'AccessToken.application' or 'AccessToken.user'.

oauth2_provider.AccessToken.user: (fields.E304) Reverse accessor for 'AccessToken.user' clashes with reverse accessor for 'AccessToken.application'.

HINT: Add or change a related_name argument to the definition for 'AccessToken.user' or 'AccessToken.application'.

oauth2_provider.Grant.application: (fields.E304) Reverse accessor for 'Grant.application' clashes with reverse accessor for 'Grant.user'.

HINT: Add or change a related_name argument to the definition for 'Grant.application' or 'Grant.user'.

oauth2_provider.Grant.user: (fields.E304) Reverse accessor for 'Grant.user' clashes with reverse accessor for 'Grant.application'.

HINT: Add or change a related_name argument to the definition for 'Grant.user' or 'Grant.application'.

oauth2_provider.RefreshToken.application: (fields.E304) Reverse accessor for 'RefreshToken.application' clashes with reverse accessor for 'RefreshToken.user'.

HINT: Add or change a related_name argument to the definition for 'RefreshToken.application' or 'RefreshToken.user'.

oauth2_provider.RefreshToken.user: (fields.E304) Reverse accessor for 'RefreshToken.user' clashes with reverse accessor for 'RefreshToken.application'.

HINT: Add or change a related_name argument to the definition for 'RefreshToken.user' or 'RefreshToken.application'.

Here is my model:

from django.db import models
from django.contrib.auth.models import User
from oauth2_provider.models import AbstractApplication

from django.contrib.auth.models import AbstractUser,BaseUserManager, AbstractBaseUser,PermissionsMixin
from django.conf import settings
from django.contrib.auth import get_user_model


class CustomUser(AbstractUser):
    some_additional_field = models.BooleanField(default=False)
    user = models.OneToOneField(User, on_delete=models.CASCADE)

Here is my settings.py

import os

BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))


# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/1.8/howto/deployment/checklist/

# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = 'y_g)p7ut03#i&2zj5*$q06^f9yz%&#$wu78qn05(a88iuaa%gq'
# SECURITY WARNING: don't run with debug turned on in production!
DEBUG = True

ALLOWED_HOSTS = []

#print (os.path.join(os.path.dirname(__file__), 'template').replace('\\','/'))


# Application definition

INSTALLED_APPS = (
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'oauth2_provider',
    'corsheaders',
    'custom_user',
    'rest_framework',
    'logistics',
    'rest_framework_swagger',
    'debug_toolbar',
)

MIDDLEWARE_CLASSES = (
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.common.CommonMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.SessionAuthenticationMiddleware',
    'oauth2_provider.middleware.OAuth2TokenMiddleware',
    'django.contrib.auth.middleware.SessionAuthenticationMiddleware',
    'oauth2_provider.middleware.OAuth2TokenMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.auth.middleware.SessionAuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
    'django.middleware.security.SecurityMiddleware',
    'corsheaders.middleware.CorsMiddleware'
)

ROOT_URLCONF = 'logistics.urls'

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [],
        'APP_DIRS': True,
        'OPTIONS': {
            'context_processors': [
                'django.template.context_processors.debug',
                'django.template.context_processors.request',
                'django.contrib.auth.context_processors.auth',
                'django.contrib.messages.context_processors.messages',
            ],
        },
    },
]

OAUTH2_PROVIDER = {
    'AUTHORIZATION_CODE_EXPIRE_SECONDS': 60 * 60,
    'ACCESS_TOKEN_EXPIRE_SECONDS': 60 * 60 * 24 * 7,
    # this is the list of available scopes
    'SCOPES': {'read': 'Read scope', 'write': 'Write scope', 'groups': 'Access to your groups'}
}

OAUTH2_PROVIDER_APPLICATION_MODEL='logistics.CustomUser'

REST_FRAMEWORK = {
    'DEFAULT_AUTHENTICATION_CLASSES': (
        'oauth2_provider.ext.rest_framework.OAuth2Authentication',
    ),
    'DEFAULT_PERMISSION_CLASSES': (
        'rest_framework.permissions.IsAuthenticated',
    ),
}

WSGI_APPLICATION = 'logistics.wsgi.application'

CORS_ORIGIN_ALLOW_ALL = True

AUTH_USER_MODEL='logistics.CustomUser'

TEMPLATE_DIRS = (
    os.path.join(os.path.dirname(__file__), 'template').replace('\\','/'),
)

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [os.path.join(BASE_DIR, 'logistics/')],
        'APP_DIRS': True,
        'OPTIONS': {
            'context_processors': [
                'django.template.context_processors.debug',
                'django.template.context_processors.request',
                'django.contrib.auth.context_processors.auth',
                'django.contrib.messages.context_processors.messages',
            ],
        },
    },
]

AUTHENTICATION_BACKENDS = (
    'oauth2_provider.backends.OAuth2Backend',
    # Uncomment following if you want to access the admin
    'django.contrib.auth.backends.ModelBackend'
    #'...',
)


# Database
# https://docs.djangoproject.com/en/1.8/ref/settings/#databases

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.sqlite3',
        'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
    }
}

OAUTH_ENABLE_APPROVAL_PROMPT_BYPASS = False

#AUTH_USER_MODEL = 'logistics.MyLogistics'

# Internationalization
# https://docs.djangoproject.com/en/1.8/topics/i18n/

LANGUAGE_CODE = 'en-us'

TIME_ZONE = 'UTC'

USE_I18N = True

USE_L10N = True

USE_TZ = True


# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/1.8/howto/static-files/

STATIC_URL = '/static/'

TEMPLATE_DIRS = (
    os.path.join(BASE_DIR,  'templates'),

[Shekar Tippur]

I have tried to follow https://docs.djangoproject.com/en/1.8/topics/auth/customizing/#a-full-example and i get an error:

django.contrib.admin.sites.AlreadyRegistered: The model CustomUser is already registered