IntegrityError: UNIQUE constraint failed: users_customuser.email
IntegrityError: UNIQUE constraint failed: users_customuser.email
我是 Django 的初学者，这是我第一个没有书籍或教程的项目。我以基于 AbstractUser 的自定义用户 class 开始了我的项目。之后，我使用第三方包django-allauth来处理用户注册流程，一切正常。用户只能使用他们的电子邮件注册和登录，并且不需要用户名。
当我更改 django-allauth 配置中的注册表单时，问题开始了。在这个新表单中，我在用户注册时添加了一些自定义字段，但这给了我这个我无法修复的错误。
一件重要的事情是创建了新用户，尽管我一直收到此错误。
我已经阅读了很多关于同一问题的问题，但 none 帮助我解决了我的问题。
用新字段编辑
这是我的models.py:
class CustomUser(AbstractUser):
username = models.CharField(max_length=100, unique=True, null=True)
email = models.EmailField(verbose_name="Email", null=True, unique=True, max_length=250)
first_name = models.CharField(verbose_name="Nome", max_length=100, null=True)
last_name = models.CharField(verbose_name="Sobrenome", max_length=250, null=True)
USERNAME_FIELD = 'email'
REQUIRED_FIELDS = ['first_name', 'last_name', ]
我的forms.py:
class CustomUserCreationForm(UserCreationForm):
class Meta:
model = get_user_model()
fields = ('email', 'first_name', 'last_name', 'major', 'university',)
class CustomUserChangeForm(UserChangeForm):
class Meta:
model = get_user_model()
fields = ('first_name', 'last_name', 'major', 'university',)
还有我的admin.py:
class CustomUserAdmin(UserAdmin):
add_form = CustomUserCreationForm
form = CustomUserChangeForm
model = CustomUser
list_display = ['full_name', 'email', 'major', 'university', ]
#fieldsets add fields to the change form and add_fieldsets to the creation form
fieldsets = UserAdmin.fieldsets + (
(None, {'fields': ('major', 'university',)}),
)
add_fieldsets = (
(None, {
'classes': ('wide',),
'fields': ('email', 'username', 'first_name', 'last_name', 'major', 'university'),
}),
)
ordering = ('email',)
admin.site.register(CustomUser, CustomUserAdmin)
此外，我检查了数据库，没有任何重复的电子邮件。
编辑
因为我使用的是 django-allauth，所以我认为这段代码可以提供帮助。 settings.py:
#Django allauth settings
ACCOUNT_EMAIL_REQUIRED = True #Email is required when signing up
ACCOUNT_AUTHENTICATION_METHOD = "email" #Users can only log in using their
ACCOUNT_USERNAME_REQUIRED = False
ACCOUNT_USER_MODEL_USERNAME_FIELD = None
ACCOUNT_LOGOUT_REDIRECT = 'home'
LOGIN_REDIRECT_URL = 'home'
ACCOUNT_SIGNUP_FORM_CLASS = 'users.forms.CustomUserCreationForm'
EMAIL_BACKEND = 'django.core.mail.backends.console.EmailBackend'
编辑出现新错误
新的错误信息
Internal Server Error: /accounts/signup/
Traceback (most recent call last):
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\django\db\backends\utils.py", line 86, in _execute
return self.cursor.execute(sql, params)
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\django\db\backends\sqlite3\base.py", line 396, in execute
return Database.Cursor.execute(self, query, params)
sqlite3.IntegrityError: UNIQUE constraint failed: users_customuser.email
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\django\core\handlers\exception.py", line 34, in inner
response = get_response(request)
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\django\core\handlers\base.py", line 115, in _get_response
response = self.process_exception_by_middleware(e, request)
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\django\core\handlers\base.py", line 113, in _get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\django\views\generic\base.py", line 71, in view
return self.dispatch(request, *args, **kwargs)
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\django\utils\decorators.py", line 43, in _wrapper
return bound_method(*args, **kwargs)
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\django\views\decorators\debug.py", line 76, in sensitive_post_parameters_wrapper
return view(request, *args, **kwargs)
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\allauth\account\views.py", line 215, in dispatch
return super(SignupView, self).dispatch(request, *args, **kwargs)
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\allauth\account\views.py", line 78, in dispatch
response = super(RedirectAuthenticatedUserMixin,
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\allauth\account\views.py", line 191, in dispatch
return super(CloseableSignupMixin, self).dispatch(request,
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\django\views\generic\base.py", line 97, in dispatch
return handler(request, *args, **kwargs)
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\allauth\account\views.py", line 104, in post
response = self.form_valid(form)
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\allauth\account\views.py", line 231, in form_valid
self.user = form.save(self.request)
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\allauth\account\forms.py", line 405, in save
self.custom_signup(request, user)
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\allauth\account\forms.py", line 359, in custom_signup
custom_form.save(user)
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\django\contrib\auth\forms.py", line 128, in save
user.save()
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\django\contrib\auth\base_user.py", line 66, in save
super().save(*args, **kwargs)
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\django\db\models\base.py", line 745, in save
self.save_base(using=using, force_insert=force_insert,
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\django\db\models\base.py", line 782, in save_base
updated = self._save_table(
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\django\db\models\base.py", line 886, in _save_table
results = self._do_insert(cls._base_manager, using, fields, returning_fields, raw)
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\django\db\models\base.py", line 923, in _do_insert
return manager._insert(
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\django\db\models\manager.py", line 82, in manager_method
return getattr(self.get_queryset(), name)(*args, **kwargs)
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\django\db\models\query.py", line 1204, in _insert
return query.get_compiler(using=using).execute_sql(returning_fields)
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\django\db\models\sql\compiler.py", line 1377, in execute_sql
cursor.execute(sql, params)
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\django\db\backends\utils.py", line 100, in execute
return super().execute(sql, params)
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\django\db\backends\utils.py", line 68, in execute
return self._execute_with_wrappers(sql, params, many=False, executor=self._execute)
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\django\db\backends\utils.py", line 77, in _execute_with_wrappers
return executor(sql, params, many, context)
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\django\db\backends\utils.py", line 86, in _execute
return self.cursor.execute(sql, params)
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\django\db\utils.py", line 90, in __exit__
raise dj_exc_value.with_traceback(traceback) from exc_value
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\django\db\backends\utils.py", line 86, in _execute
return self.cursor.execute(sql, params)
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\django\db\backends\sqlite3\base.py", line 396, in execute
return Database.Cursor.execute(self, query, params)
django.db.utils.IntegrityError: UNIQUE constraint failed: users_customuser.email
[21/Aug/2020 11:08:00] "POST /accounts/signup/ HTTP/1.1" 500 214904
Database before creating first user
Database after creating first user
这样写：
email = models.EmailField(verbose_name="Email", null=True, unique=True, max_length=100)
好的，经过一些研究我设法解决了我的问题
问题出在我的 CustomUserCreationForm 中。由于我使用 django-allauth 进行身份验证，因此我应该在创建表单中添加额外的字段并让 django-allauth 处理电子邮件和密码字段。
因此，通过从 Meta class 中删除电子邮件，我可以解决用户电子邮件中发生的 IntegrityError。
现在我的 CustomUserCreationForm 看起来像这样：
model = CustomUser
fields = ('first_name', 'last_name', 'date_of_birth', )```
我是 Django 的初学者，这是我第一个没有书籍或教程的项目。我以基于 AbstractUser 的自定义用户 class 开始了我的项目。之后，我使用第三方包django-allauth来处理用户注册流程，一切正常。用户只能使用他们的电子邮件注册和登录，并且不需要用户名。
当我更改 django-allauth 配置中的注册表单时，问题开始了。在这个新表单中，我在用户注册时添加了一些自定义字段，但这给了我这个我无法修复的错误。 一件重要的事情是创建了新用户，尽管我一直收到此错误。
我已经阅读了很多关于同一问题的问题，但 none 帮助我解决了我的问题。
用新字段编辑
这是我的models.py:
class CustomUser(AbstractUser):
username = models.CharField(max_length=100, unique=True, null=True)
email = models.EmailField(verbose_name="Email", null=True, unique=True, max_length=250)
first_name = models.CharField(verbose_name="Nome", max_length=100, null=True)
last_name = models.CharField(verbose_name="Sobrenome", max_length=250, null=True)
USERNAME_FIELD = 'email'
REQUIRED_FIELDS = ['first_name', 'last_name', ]
我的forms.py:
class CustomUserCreationForm(UserCreationForm):
class Meta:
model = get_user_model()
fields = ('email', 'first_name', 'last_name', 'major', 'university',)
class CustomUserChangeForm(UserChangeForm):
class Meta:
model = get_user_model()
fields = ('first_name', 'last_name', 'major', 'university',)
还有我的admin.py:
class CustomUserAdmin(UserAdmin):
add_form = CustomUserCreationForm
form = CustomUserChangeForm
model = CustomUser
list_display = ['full_name', 'email', 'major', 'university', ]
#fieldsets add fields to the change form and add_fieldsets to the creation form
fieldsets = UserAdmin.fieldsets + (
(None, {'fields': ('major', 'university',)}),
)
add_fieldsets = (
(None, {
'classes': ('wide',),
'fields': ('email', 'username', 'first_name', 'last_name', 'major', 'university'),
}),
)
ordering = ('email',)
admin.site.register(CustomUser, CustomUserAdmin)
此外，我检查了数据库，没有任何重复的电子邮件。
编辑
因为我使用的是 django-allauth，所以我认为这段代码可以提供帮助。 settings.py:
#Django allauth settings
ACCOUNT_EMAIL_REQUIRED = True #Email is required when signing up
ACCOUNT_AUTHENTICATION_METHOD = "email" #Users can only log in using their
ACCOUNT_USERNAME_REQUIRED = False
ACCOUNT_USER_MODEL_USERNAME_FIELD = None
ACCOUNT_LOGOUT_REDIRECT = 'home'
LOGIN_REDIRECT_URL = 'home'
ACCOUNT_SIGNUP_FORM_CLASS = 'users.forms.CustomUserCreationForm'
EMAIL_BACKEND = 'django.core.mail.backends.console.EmailBackend'
编辑出现新错误 新的错误信息
Internal Server Error: /accounts/signup/
Traceback (most recent call last):
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\django\db\backends\utils.py", line 86, in _execute
return self.cursor.execute(sql, params)
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\django\db\backends\sqlite3\base.py", line 396, in execute
return Database.Cursor.execute(self, query, params)
sqlite3.IntegrityError: UNIQUE constraint failed: users_customuser.email
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\django\core\handlers\exception.py", line 34, in inner
response = get_response(request)
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\django\core\handlers\base.py", line 115, in _get_response
response = self.process_exception_by_middleware(e, request)
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\django\core\handlers\base.py", line 113, in _get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\django\views\generic\base.py", line 71, in view
return self.dispatch(request, *args, **kwargs)
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\django\utils\decorators.py", line 43, in _wrapper
return bound_method(*args, **kwargs)
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\django\views\decorators\debug.py", line 76, in sensitive_post_parameters_wrapper
return view(request, *args, **kwargs)
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\allauth\account\views.py", line 215, in dispatch
return super(SignupView, self).dispatch(request, *args, **kwargs)
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\allauth\account\views.py", line 78, in dispatch
response = super(RedirectAuthenticatedUserMixin,
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\allauth\account\views.py", line 191, in dispatch
return super(CloseableSignupMixin, self).dispatch(request,
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\django\views\generic\base.py", line 97, in dispatch
return handler(request, *args, **kwargs)
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\allauth\account\views.py", line 104, in post
response = self.form_valid(form)
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\allauth\account\views.py", line 231, in form_valid
self.user = form.save(self.request)
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\allauth\account\forms.py", line 405, in save
self.custom_signup(request, user)
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\allauth\account\forms.py", line 359, in custom_signup
custom_form.save(user)
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\django\contrib\auth\forms.py", line 128, in save
user.save()
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\django\contrib\auth\base_user.py", line 66, in save
super().save(*args, **kwargs)
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\django\db\models\base.py", line 745, in save
self.save_base(using=using, force_insert=force_insert,
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\django\db\models\base.py", line 782, in save_base
updated = self._save_table(
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\django\db\models\base.py", line 886, in _save_table
results = self._do_insert(cls._base_manager, using, fields, returning_fields, raw)
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\django\db\models\base.py", line 923, in _do_insert
return manager._insert(
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\django\db\models\manager.py", line 82, in manager_method
return getattr(self.get_queryset(), name)(*args, **kwargs)
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\django\db\models\query.py", line 1204, in _insert
return query.get_compiler(using=using).execute_sql(returning_fields)
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\django\db\models\sql\compiler.py", line 1377, in execute_sql
cursor.execute(sql, params)
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\django\db\backends\utils.py", line 100, in execute
return super().execute(sql, params)
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\django\db\backends\utils.py", line 68, in execute
return self._execute_with_wrappers(sql, params, many=False, executor=self._execute)
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\django\db\backends\utils.py", line 77, in _execute_with_wrappers
return executor(sql, params, many, context)
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\django\db\backends\utils.py", line 86, in _execute
return self.cursor.execute(sql, params)
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\django\db\utils.py", line 90, in __exit__
raise dj_exc_value.with_traceback(traceback) from exc_value
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\django\db\backends\utils.py", line 86, in _execute
return self.cursor.execute(sql, params)
File "C:\Users\Bruno\.virtualenvs\Sophia-owJCV_9p\lib\site-packages\django\db\backends\sqlite3\base.py", line 396, in execute
return Database.Cursor.execute(self, query, params)
django.db.utils.IntegrityError: UNIQUE constraint failed: users_customuser.email
[21/Aug/2020 11:08:00] "POST /accounts/signup/ HTTP/1.1" 500 214904
Database before creating first user
Database after creating first user
这样写：
email = models.EmailField(verbose_name="Email", null=True, unique=True, max_length=100)
好的，经过一些研究我设法解决了我的问题
问题出在我的 CustomUserCreationForm 中。由于我使用 django-allauth 进行身份验证，因此我应该在创建表单中添加额外的字段并让 django-allauth 处理电子邮件和密码字段。 因此，通过从 Meta class 中删除电子邮件，我可以解决用户电子邮件中发生的 IntegrityError。
现在我的 CustomUserCreationForm 看起来像这样：
model = CustomUser
fields = ('first_name', 'last_name', 'date_of_birth', )```