管理员中的Django自定义用户模型,关系“auth_user”不存在 [英] Django custom user model in admin, relation "auth_user" does not exist
问题描述
我有一个自定义用户模型,如下所示:
class User(AbstractUser):
subscribe_newsletters = models。 BooleanField(default = True)
old_id = models.IntegerField(null = True,blank = True)
old_source = models.CharField(max_length = 25,null = True,blank = True)
并使用内置的UserAdmin
admin.site.register(User,UserAdmin)
编辑用户记录工作正常,但是当我添加一个用户时,我收到以下错误
异常值:
关系auth_user不存在
LINE 1:... user。is_active,auth_user。date_joinedFROMauth_user ...
在一些挖掘之后,我发现这个
罪魁祸首是 clean_username
里面 UserCreationForm
里面 django.contrib.auth.forms.py
。已经创建了几张票,但显然维护者不认为这是一个缺陷:
https://code.djangoproject.com/ticket/20188
https://code.djangoproject.com/ticket/20086
def clean_username(self):
#由于User.username是唯一的,此检查是多余的,
#,但它设置比ORM更好的错误消息。见#13147。
username = self.cleaned_data [username]
try:
User._default_manager.get(username = username)
除了User.DoesNotExist:
return username
raise forms.ValidationError(self.error_messages ['duplic_username'])
用户
在此文件中直接引用内置用户模型。
要修复它,我创建了我的自定义表单
从模型导入用户#您可以使用django.contrib.auth.forms中的get_user_model
从django导入UserCreationForm
.contrib.auth.admin导入来自django.contrib.auth的UserAdmin
导入表单
class MyUserCreationForm(UserCreationForm):
def clean_username(self):
#Since User.username是唯一的,此检查是多余的,
#但它设置比ORM更好的错误消息。见#13147。
username = self.cleaned_data [username]
try:
User._default_manager.get(username = username)
除了User.DoesNotExist:
return username
raise forms.ValidationError(self.error_messages ['duplicate_username'])
class Meta(UserCreationForm.Meta):
model = User
class MyUserAdmin (UserAdmin):
add_form = MyUserCreationForm
admin.site.register(User,MyUserAdmin)
或者您可以尝试修补原始 UserCreationForm
来替换 User
变量。 / p>
I have a custom user model as below:
class User(AbstractUser):
subscribe_newsletters = models.BooleanField(default=True)
old_id = models.IntegerField(null=True, blank=True)
old_source = models.CharField(max_length=25, null=True, blank=True)
And using the builtin UserAdmin
admin.site.register(User, UserAdmin)
While editing the user record works fine, but when I add a user, I get the following error
Exception Value:
relation "auth_user" does not exist
LINE 1: ...user"."is_active", "auth_user"."date_joined" FROM "auth_user...
After some digging around I found this
The culprit is a function clean_username
inside UserCreationForm
inside django.contrib.auth.forms.py
. A few tickets have been created, but apparently the maintainers don't think it's a defect:
https://code.djangoproject.com/ticket/20188
https://code.djangoproject.com/ticket/20086
def clean_username(self):
# Since User.username is unique, this check is redundant,
# but it sets a nicer error message than the ORM. See #13147.
username = self.cleaned_data["username"]
try:
User._default_manager.get(username=username)
except User.DoesNotExist:
return username
raise forms.ValidationError(self.error_messages['duplicate_username'])
The User
in this file is directly referencing to the builtin user model.
To fix it, I created my custom forms
from models import User #you can use get_user_model
from django.contrib.auth.forms import UserCreationForm
from django.contrib.auth.admin import UserAdmin
from django.contrib.auth import forms
class MyUserCreationForm(UserCreationForm):
def clean_username(self):
# Since User.username is unique, this check is redundant,
# but it sets a nicer error message than the ORM. See #13147.
username = self.cleaned_data["username"]
try:
User._default_manager.get(username=username)
except User.DoesNotExist:
return username
raise forms.ValidationError(self.error_messages['duplicate_username'])
class Meta(UserCreationForm.Meta):
model = User
class MyUserAdmin(UserAdmin):
add_form = MyUserCreationForm
admin.site.register(User,MyUserAdmin)
Or you can try monkey patching the original UserCreationForm
to replace the User
variable.
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