Repaired django [Was: Manager isn't available; 'auth.User' has been swapped for 'common.User']

The fix is to adjust 1.11 django.contrib.auth.forms as follows:

Line 12 - comment it right out
Line 88 - change User to UserModel
Line 128 - change User to UserModel

Here is the diff ...

@@ -9,7 +9,7 @@ from django.contrib.auth import (
 from django.contrib.auth.hashers import (
     UNUSABLE_PASSWORD_PREFIX, identify_hasher,
 )
-from django.contrib.auth.models import User
+#from django.contrib.auth.models import User
 from django.contrib.auth.tokens import default_token_generator
 from django.contrib.sites.shortcuts import get_current_site
 from django.core.mail import EmailMultiAlternatives
@@ -85,7 +85,7 @@ class UserCreationForm(forms.ModelForm):
     )

     class Meta:
-        model = User
+        model = UserModel
         fields = ("username",)
         field_classes = {'username': UsernameField}

@@ -125,7 +125,7 @@ class UserChangeForm(forms.ModelForm):
     )

     class Meta:
-        model = User
+        model = UserModel
         fields = '__all__'
         field_classes = {'username': UsernameField}

Cheers

Mike


On 16/11/2017 3:18 PM, Mike Dewhirst wrote:
> Any hints appreciated. I'm stumped. Traceback at the end.
>
> Many thanks
>
> Mike
>
> - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
> - - - - - - - - - - - - - - - - - - - - -
>
> I have a custom user based on AbstractUser plus a UserProfile model as
> follows:
>
> #common.models from django.conf import settings from
> django.contrib.auth.models import AbstractUser, Group, UserManager
> from django.db import models from django.utils.encoding import
> python_2_unicode_compatible @python_2_unicode_compatible class
> User(AbstractUser): objects = UserManager() class Meta: abstract =
> False def __str__(self): grps = u'' superuser = u'' if self.is_staff:
> superuser = u' [Staff]' if self.is_superuser: superuser = u'
> [Superuser]' if not self.is_active: superuser += u' [Inactive]' groups
> = Group.objects.filter(user=self).order_by('name') if groups: grps =
> u', '.join(grp.name for grp in groups) if grps: grps = u' (%s)' % grps
> grps += superuser return u'%s%s' % (self.username, grps) def
> save(self, *args, **kwargs): super(User, self).save(*args, **kwargs) #
> not sure whether to use the post-save signal or just save it here
> profile = UserProfile.objects.get_or_create(user=self)[0]
> profile.save() @python_2_unicode_compatible class
> UserProfile(models.Model): user = models.OneToOneField(
> settings.AUTH_USER_MODEL, related_name='userprofile',
> on_delete=models.CASCADE, ) ... created =
> models.DateTimeField(auto_now_add=True) modified =
> models.DateTimeField(auto_now=True) class Meta: verbose_name = 'user
> profile' verbose_name_plural = 'user profile' def __str__(self):
> return u'%s' % self.user
> The error occurs when I click [Register] with a new user via the
> following view:
>
> #common.views from django.contrib.auth import login, authenticate from
> django.contrib.auth.forms import UserCreationForm from
> django.shortcuts import render, redirect def register(request): if
> request.method == 'POST': form = UserCreationForm(request.POST) if
> form.is_valid(): form.save() username =
> form.cleaned_data.get('username') raw_password =
> form.cleaned_data.get('password1') user =
> authenticate(username=username, password=raw_password) login(request,
> user) return redirect('common.views.homepage') else: form =
> UserCreationForm() return render(request, 'register.html', {'form':
> form})
> For completeness here is the template:
>
> #register.html {% extends 'base_site.html' %} {% block content %}
> <h2>Register</h2> <form method="post"> {% csrf_token %} {{ form.as_p
> }} <button type="submit">Register</button> </form> {% endblock %}
> Traceback ...
>
> Environment: Request Method: POST Request URL:
> http://localhost:8000/register/ Django Version: 1.11.6 Python Version:
> 3.6.1 Installed Applications: ['django.contrib.admin',
> 'django.contrib.admindocs', 'django.contrib.auth',
> 'django.contrib.contenttypes', 'django.contrib.sessions',
> 'django.contrib.messages', 'django.contrib.staticfiles',
> 'django.contrib.sites', 'common', 'course', 'credit'] Installed
> Middleware: ['django.middleware.security.SecurityMiddleware',
> 'django.contrib.sessions.middleware.SessionMiddleware',
> 'django.middleware.common.CommonMiddleware',
> 'django.middleware.csrf.CsrfViewMiddleware',
> 'django.contrib.auth.middleware.AuthenticationMiddleware',
> 'django.contrib.messages.middleware.MessageMiddleware',
> 'django.middleware.clickjacking.XFrameOptionsMiddleware'] Traceback:
> File
> "C:\Users\mike\env\xxct3\lib\site-packages\django\core\handlers\exception.py"
> in inner 41. response = get_response(request) File
> "C:\Users\mike\env\xxct3\lib\site-packages\django\core\handlers\base.py"
> in _get_response 187. response =
> self.process_exception_by_middleware(e, request) File
> "C:\Users\mike\env\xxct3\lib\site-packages\django\core\handlers\base.py"
> in _get_response 185. response = wrapped_callback(request,
> *callback_args, **callback_kwargs) File
> "C:\Users\mike\env\xxct3\train\common\views.py" in register 36. if
> form.is_valid(): File
> "C:\Users\mike\env\xxct3\lib\site-packages\django\forms\forms.py" in
> is_valid 183. return self.is_bound and not self.errors File
> "C:\Users\mike\env\xxct3\lib\site-packages\django\forms\forms.py" in
> errors 175. self.full_clean() File
> "C:\Users\mike\env\xxct3\lib\site-packages\django\forms\forms.py" in
> full_clean 386. self._post_clean() File
> "C:\Users\mike\env\xxct3\lib\site-packages\django\forms\models.py" in
> _post_clean 413. self.instance.full_clean(exclude=exclude,
> validate_unique=False) File
> "C:\Users\mike\env\xxct3\lib\site-packages\django\db\models\base.py"
> in full_clean 1235. self.clean() File
> "C:\Users\mike\env\xxct3\lib\site-packages\django\contrib\auth\models.py"
> in clean 349. self.email =
> self.__class__.objects.normalize_email(self.email) File
> "C:\Users\mike\env\xxct3\lib\site-packages\django\db\models\manager.py"
> in __get__ 198. cls._meta.swapped, Exception Type: AttributeError at
> /register/ Exception Value: Manager isn't available; 'auth.User' has
> been swapped for 'common.User'
>
>
>
>
>
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