无法从使用 Django-Allauth 创建的管理面板中删除用户

Question

我是 Django 新手，正在尝试将社交登录选项添加到我正在处理的项目中。我目前正在使用Django-Allauth。目前我只在我的项目中加入了谷歌登录。一切正常。我为我的项目创建了一个自定义用户模型，并使用电子邮件作为用户名。当用户尝试使用我提供的注册模板进行注册时，我可以毫无问题地从数据库中删除该用户。但是，如果我尝试从管理面板中删除使用 django-allauth 的 Google 选项登录的任何用户，我会收到 __str__ returned non-string (type CustomUser) 错误。我重置所有内容的唯一方法是简单地删除模型并重做所有内容。下面是我的模型的样子。我正在使用 Django 3.0 和最新版本的 Django-Allauth。我不知道如何解决这个问题。对此的任何帮助将不胜感激。

models.py

class CustomUser(AbstractBaseUser):
    email = models.EmailField(unique=True, max_length=100)
    first_name = models.CharField(max_length=35)
    last_name = models.CharField(max_length=35)
    mobile = models.CharField(max_length=11, blank=True, default='')
    city = models.CharField(max_length=35, blank=True, default='')

    USERNAME_FIELD = 'email'

    REQUIRED_FIELDS = ['first_name', 'last_name']

    objects = CustomUserManager()

    def __str__(self):
        return self.email

    def get_full_name(self):
        if self.first_name and self.last_name:
            return self.first_name + " " + self.last_name

    def get_short_name(self):
        if self.first_name:
            return self.first_name

    def has_perm(self, perm, obj=None):
        """
        Does the user have a specific permission?
        """
        # Simplest possible answer: Yes, always
        return True

    def has_module_perms(self, app_label):
        """
        Does the user have permissions to view the app `app_label`?
        """
        # Simplest possible answer: Yes, always
        return True

    def get_absolute_url(self):
        return reverse('users-profile', args=[str(self.id)])

Settings.py

# Application definition
INSTALLED_APPS = [
    # Default Apps
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'django.contrib.sites',  # Added

    # User Apps
    'users.apps.UsersConfig',
    'crispy_forms',
    'allauth',
    'allauth.account',
    'allauth.socialaccount',
    'allauth.socialaccount.providers.google',
]

AUTHENTICATION_BACKENDS = (
    'django.contrib.auth.backends.ModelBackend',
    'allauth.account.auth_backends.AuthenticationBackend',  # Added
)

# Required for Django-Allauth
SITE_ID = 1

# Required for Django-Allauth
ACCOUNT_USER_MODEL_USERNAME_FIELD = None
ACCOUNT_EMAIL_REQUIRED = True
ACCOUNT_USERNAME_REQUIRED = False
ACCOUNT_AUTHENTICATION_METHOD = 'email'
ACCOUNT_UNIQUE_EMAIL = True

urls.py

urlpatterns = [
    path('admin/', admin.site.urls),
    path('', include('users.urls')),
    path('accounts/', include('allauth.urls')),
]

以下是错误回溯：

Environment:


Request Method: POST
Request URL: http://127.0.0.1:8000/admin/users/customuser/

Django Version: 3.0
Python Version: 3.8.0
Installed Applications:
['django.contrib.admin',
 'django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.messages',
 'django.contrib.staticfiles',
 'django.contrib.sites',
 'users.apps.UsersConfig',
 'contacts.apps.ContactsConfig',
 'API.apps.ApiConfig',
 'crispy_forms',
 'admin_honeypot',
 'rest_framework',
 'allauth',
 'allauth.account',
 'allauth.socialaccount',
 'allauth.socialaccount.providers.google']
Installed Middleware:
('whitenoise.middleware.WhiteNoiseMiddleware',
 'django.middleware.security.SecurityMiddleware',
 'whitenoise.middleware.WhiteNoiseMiddleware',
 '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',
 'users.middleware.OneSessionPerUserMiddleware')



Traceback (most recent call last):
  File "D:\Programs\Django\venv\lib\site-packages\django\core\handlers\exception.py", line 34, in inner
    response = get_response(request)
  File "D:\Programs\Django\venv\lib\site-packages\django\core\handlers\base.py", line 115, in _get_response
    response = self.process_exception_by_middleware(e, request)
  File "D:\Programs\Django\venv\lib\site-packages\django\core\handlers\base.py", line 113, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "D:\Programs\Django\venv\lib\site-packages\django\contrib\admin\options.py", line 607, in wrapper
    return self.admin_site.admin_view(view)(*args, **kwargs)
  File "D:\Programs\Django\venv\lib\site-packages\django\utils\decorators.py", line 130, in _wrapped_view
    response = view_func(request, *args, **kwargs)
  File "D:\Programs\Django\venv\lib\site-packages\django\views\decorators\cache.py", line 44, in _wrapped_view_func
    response = view_func(request, *args, **kwargs)
  File "D:\Programs\Django\venv\lib\site-packages\django\contrib\admin\sites.py", line 231, in inner
    return view(request, *args, **kwargs)
  File "D:\Programs\Django\venv\lib\site-packages\django\utils\decorators.py", line 43, in _wrapper
    return bound_method(*args, **kwargs)
  File "D:\Programs\Django\venv\lib\site-packages\django\utils\decorators.py", line 130, in _wrapped_view
    response = view_func(request, *args, **kwargs)
  File "D:\Programs\Django\venv\lib\site-packages\django\contrib\admin\options.py", line 1704, in changelist_view
    response = self.response_action(request, queryset=cl.get_queryset(request))
  File "D:\Programs\Django\venv\lib\site-packages\django\contrib\admin\options.py", line 1390, in response_action
    response = func(self, request, queryset)
  File "D:\Programs\Django\venv\lib\site-packages\django\contrib\admin\actions.py", line 28, in delete_selected
    deletable_objects, model_count, perms_needed, protected = modeladmin.get_deleted_objects(queryset, request)
  File "D:\Programs\Django\venv\lib\site-packages\django\contrib\admin\options.py", line 1826, in get_deleted_objects
    return get_deleted_objects(objs, request, self.admin_site)
  File "D:\Programs\Django\venv\lib\site-packages\django\contrib\admin\utils.py", line 151, in get_deleted_objects
    to_delete = collector.nested(format_callback)
  File "D:\Programs\Django\venv\lib\site-packages\django\contrib\admin\utils.py", line 211, in nested
    roots.extend(self._nested(root, seen, format_callback))
  File "D:\Programs\Django\venv\lib\site-packages\django\contrib\admin\utils.py", line 195, in _nested
    children.extend(self._nested(child, seen, format_callback))
  File "D:\Programs\Django\venv\lib\site-packages\django\contrib\admin\utils.py", line 197, in _nested
    ret = [format_callback(obj)]
  File "D:\Programs\Django\venv\lib\site-packages\django\contrib\admin\utils.py", line 126, in format_callback
    no_edit_link = '%s: %s' % (capfirst(opts.verbose_name), obj)

Exception Type: TypeError at /admin/users/customuser/
Exception Value: __str__ returned non-string (type CustomUser)

Answer 1

AbstractBaseUser 有一个__str__ 方法，它返回模型中USERNAME_FIELD 上指定的字段。您可以在Github查看源代码。

所以在你指定自定义USERNAME_FIELD之后，你可以删除你自己的__str__方法：

class CustomUser(AbstractBaseUser):
    email = models.EmailField(unique=True, max_length=100)
    first_name = models.CharField(max_length=35)
    last_name = models.CharField(max_length=35)
    mobile = models.CharField(max_length=11, blank=True, default='')
    city = models.CharField(max_length=35, blank=True, default='')

    USERNAME_FIELD = 'email'

还要确保您installed and configured the packaged properly。