FieldError - Unknown field(s) (usable_password) specified for CustomUser

Hello,

I’m relatively new to Django. I’ve been working through Django for Professionals by William Vincent and using the Django docs. I’m trying to create a custom user class and use the Django admin site page to add a custom user.

When I go to the admin site and try to add a new user I get the traceback below.

I thought it may be this, but it doesn’t seem to help:

Any suggestions on where to look next greatly appreciated.

Full traceback:

FieldError at /admin/accounts/customuser/add/
Unknown field(s) (usable_password) specified for CustomUser. Check fields/fieldsets/exclude attributes of class CustomUserAdmin.
Request Method:	GET
Request URL:	http://localhost:8000/admin/accounts/customuser/add/
Django Version:	5.1.3
Exception Type:	FieldError
Exception Value:	
Unknown field(s) (usable_password) specified for CustomUser. Check fields/fieldsets/exclude attributes of class CustomUserAdmin.
Exception Location:	C:\Working\GitHub\GiftGenius\.venv\Lib\site-packages\django\contrib\admin\options.py, line 841, in get_form
Raised during:	django.contrib.auth.admin.add_view
Python Executable:	C:\Working\GitHub\GiftGenius\.venv\Scripts\python.exe
Python Version:	3.12.7
Python Path:	
['C:\\Working\\GitHub\\GiftGenius',
 'C:\\Program Files\\Python312\\python312.zip',
 'C:\\Program Files\\Python312\\DLLs',
 'C:\\Program Files\\Python312\\Lib',
 'C:\\Program Files\\Python312',
 'C:\\Working\\GitHub\\GiftGenius\\.venv',
 'C:\\Working\\GitHub\\GiftGenius\\.venv\\Lib\\site-packages']
Server time:	Tue, 19 Nov 2024 00:36:14 -0500

Environment:


Request Method: GET
Request URL: http://localhost:8000/admin/accounts/customuser/add/

Django Version: 5.1.3
Python Version: 3.12.7
Installed Applications:
['django.contrib.admin',
 'django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.messages',
 'django.contrib.staticfiles',
 'crispy_forms',
 'crispy_tailwind',
 'accounts.apps.AccountsConfig',
 'main',
 'giftcards',
 'shop.apps.ShopConfig']
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 (most recent call last):
  File "C:\Working\GitHub\GiftGenius\.venv\Lib\site-packages\django\contrib\admin\options.py", line 839, in get_form
    return modelform_factory(self.model, **defaults)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Working\GitHub\GiftGenius\.venv\Lib\site-packages\django\forms\models.py", line 654, in modelform_factory
    return type(form)(class_name, (form,), form_class_attrs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Working\GitHub\GiftGenius\.venv\Lib\site-packages\django\forms\models.py", line 334, in __new__
    raise FieldError(message)
    ^^^^^^^^^^^^^^^^^^^^^^^^^

During handling of the above exception (Unknown field(s) (usable_password) specified for CustomUser), another exception occurred:
  File "C:\Working\GitHub\GiftGenius\.venv\Lib\site-packages\django\core\handlers\exception.py", line 55, in inner
    response = get_response(request)
               ^^^^^^^^^^^^^^^^^^^^^
  File "C:\Working\GitHub\GiftGenius\.venv\Lib\site-packages\django\core\handlers\base.py", line 197, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Working\GitHub\GiftGenius\.venv\Lib\site-packages\django\contrib\admin\options.py", line 718, in wrapper
    return self.admin_site.admin_view(view)(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Working\GitHub\GiftGenius\.venv\Lib\site-packages\django\utils\decorators.py", line 188, in _view_wrapper
    result = _process_exception(request, e)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Working\GitHub\GiftGenius\.venv\Lib\site-packages\django\utils\decorators.py", line 186, in _view_wrapper
    response = view_func(request, *args, **kwargs)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Working\GitHub\GiftGenius\.venv\Lib\site-packages\django\views\decorators\cache.py", line 80, in _view_wrapper
    response = view_func(request, *args, **kwargs)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Working\GitHub\GiftGenius\.venv\Lib\site-packages\django\contrib\admin\sites.py", line 241, in inner
    return view(request, *args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Working\GitHub\GiftGenius\.venv\Lib\site-packages\django\utils\decorators.py", line 48, in _wrapper
    return bound_method(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Working\GitHub\GiftGenius\.venv\Lib\site-packages\django\views\decorators\debug.py", line 143, in sensitive_post_parameters_wrapper
    return view(request, *args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Working\GitHub\GiftGenius\.venv\Lib\site-packages\django\utils\decorators.py", line 48, in _wrapper
    return bound_method(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Working\GitHub\GiftGenius\.venv\Lib\site-packages\django\utils\decorators.py", line 188, in _view_wrapper
    result = _process_exception(request, e)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Working\GitHub\GiftGenius\.venv\Lib\site-packages\django\utils\decorators.py", line 186, in _view_wrapper
    response = view_func(request, *args, **kwargs)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Working\GitHub\GiftGenius\.venv\Lib\site-packages\django\contrib\auth\admin.py", line 121, in add_view
    return self._add_view(request, form_url, extra_context)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Working\GitHub\GiftGenius\.venv\Lib\site-packages\django\contrib\auth\admin.py", line 149, in _add_view
    return super().add_view(request, form_url, extra_context)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Working\GitHub\GiftGenius\.venv\Lib\site-packages\django\contrib\admin\options.py", line 1961, in add_view
    return self.changeform_view(request, None, form_url, extra_context)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Working\GitHub\GiftGenius\.venv\Lib\site-packages\django\utils\decorators.py", line 48, in _wrapper
    return bound_method(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Working\GitHub\GiftGenius\.venv\Lib\site-packages\django\utils\decorators.py", line 188, in _view_wrapper
    result = _process_exception(request, e)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Working\GitHub\GiftGenius\.venv\Lib\site-packages\django\utils\decorators.py", line 186, in _view_wrapper
    response = view_func(request, *args, **kwargs)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Working\GitHub\GiftGenius\.venv\Lib\site-packages\django\contrib\admin\options.py", line 1820, in changeform_view
    return self._changeform_view(request, object_id, form_url, extra_context)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Working\GitHub\GiftGenius\.venv\Lib\site-packages\django\contrib\admin\options.py", line 1855, in _changeform_view
    ModelForm = self.get_form(
                
  File "C:\Working\GitHub\GiftGenius\.venv\Lib\site-packages\django\contrib\auth\admin.py", line 98, in get_form
    return super().get_form(request, obj, **defaults)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Working\GitHub\GiftGenius\.venv\Lib\site-packages\django\contrib\admin\options.py", line 841, in get_form
    raise FieldError(
    ^

Exception Type: FieldError at /admin/accounts/customuser/add/
Exception Value: Unknown field(s) (usable_password) specified for CustomUser. Check fields/fieldsets/exclude attributes of class CustomUserAdmin.

From my accounts app:

admin.py:

from django.contrib import admin
from django.contrib.auth import get_user_model
from django.contrib.auth.admin import UserAdmin

from .forms import CustomUserCreationForm, CustomUserChangeForm
from .models import Address

CustomUser = get_user_model()


class AddressAdmin(admin.ModelAdmin):
    model = Address


class CustomUserAdmin(UserAdmin):
    add_form = CustomUserCreationForm
    form = CustomUserChangeForm
    model = CustomUser
    list_display = [
        'email',
        'username',
        'is_superuser'
    ]
    # fieldsets = UserAdmin.fieldsets + ((None, {'fields': ['role', 'shippingaddress']}),)
    # add_fieldsets = UserAdmin.add_fieldsets + ((None, {'fields': ['role', 'shippingaddress']}),)


admin.site.register(CustomUser, CustomUserAdmin)
admin.site.register(Address, AddressAdmin)

forms.py:

from django.contrib.auth import get_user_model
from django.contrib.auth.forms import UserCreationForm, UserChangeForm


class CustomUserCreationForm(UserCreationForm):
    class Meta:
        model = get_user_model()
        fields = (
            'email',
            'username'
        )


class CustomUserChangeForm(UserChangeForm):
    class Meta:
        model = get_user_model()
        fields = (
            'email',
            'username'
        )

models.py:

from django.contrib.auth.models import AbstractUser
from django.db import models


class Address(models.Model):
    # id = models.AutoField(primary_key=True)
    userid = models.OneToOneField(
        'CustomUser', on_delete=models.CASCADE, default='', blank=True, primary_key=True
    )
    streetaddress1 = models.CharField(max_length=100)
    streetaddress2 = models.CharField(max_length=100, blank=True)
    city = models.CharField(max_length=100)
    state = models.CharField(max_length=50)
    zip = models.CharField(max_length=10)

    class AddressType(models.IntegerChoices):
        RESIDENTIAL = 1
        COMMERCIAL = 2
        MAILING = 3
        SHIPPING = 4

    addresstype = models.IntegerField(choices=AddressType, default=1)

    def __str__(self):
        return (
            self.streetaddress1[:30]
            if len(self.streetaddress1) <= 30
            else f'{self.streetaddress1[:27]}...'
        )


class CustomUser(AbstractUser):
    '''
    Contains:
    * username = models.CharField(...)
    * password = ...
    * first_name = models.CharField(...)
    * last_name = models.CharField(...)
    * email = models.EmailField(...)
    * is_active = models.BooleanField(...)
    * is_staff = models.BooleanField(...)
    * is_superuser = models.BooleanField(...)
    * date_joined = models.DateTimeField(...)
    * last_login = models.DateTimeField(...)
    '''

    '''
    address = models.OneToOneField(
        Address, on_delete=models.CASCADE, default='', blank=True
    )
    '''

    class UserType(models.IntegerChoices):
        ADMIN = 1
        CUSTOMER = 2
        RECIPIENT = 3

    role = models.IntegerField(choices=UserType, default=2)
    shippingaddress = models.OneToOneField(
        Address,
        on_delete=models.CASCADE,
        related_name='shippingaddress',
        default='',
        blank=True,
        null=True
    )

views.py:

from django.urls import reverse_lazy
from django.views import generic

from .forms import CustomUserCreationForm


class RegisterPageView(generic.CreateView):
    form_class = CustomUserCreationForm
    success_url = reverse_lazy('login')
    template_name = 'registration/register.html'

Does this similar question help you? when I add new user from admin panel this error HELP!

1 Like

@philgyford Thanks - that does the trick.

For anyone reading this, it looks like the stock User class includes the ‘usable_password’ field which appears to support the functionality shown below.

Django Admin, Add User:

For whatever reason, when you extend User using AbstractUser, this seems to break…

–Jim