Django FieldError：指定了未知字段（usable_password）

Question

我在尝试在管理面板的用户中添加用户时遇到此字段错误。 当我点击添加用户时，会弹出此错误。 我没有在代码中的任何地方使用 usable_password，并尝试通过删除 db.sqlite3、迁移、然后重做 makemirations 等多种方法来解决此问题。另一件事是我更改了 models.py 中类的拼写（在进行迁移后再次进行迁移，它成功创建了迁移文件）。我想了解为什么会发生这种情况，不久前我在不同的项目中遇到了类似的错误，我不知道当时是如何解决的。

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://127.0.0.1:8000/admin/accounts/customuser/add/ Django Version: 5.1.4 Exception Type: FieldError Exception Value:     Unknown field(s) (usable_password) specified for CustomUser. Check fields/fieldsets/exclude attributes of class CustomUserAdmin. Exception Location: C:\Users\Learning Django\blog-api\.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:\Users\Learning Django\blog-api\.venv\Scripts\python.exe Python Version: 3.12.2 Python Path:     ['C:\\Users\\Desktop\\Learning ' 'Django\\blog-api\\django_project', 'C:\\Python312\\python312.zip', 'C:\\Python312\\DLLs', 'C:\\Python312\\Lib', 'C:\\Python312', 'C:\\Users\\Learning ' 'Django\\blog-api\\.venv', 'C:\\Users\\Learning ' 'Django\\blog-api\\.venv\\Lib\\site-packages']

我附上了 models.py、forms.py 和 admin.py 的代码： 模型.py

from django.db import models

# Create your models here.
from django.contrib.auth.models import AbstractUser

class CustomUser(AbstractUser):
    name = models.CharField(null = True, blank = True, max_length = 255)
    

表格.py

from django.contrib.auth.forms import UserCreationForm, UserChangeForm
from .models import CustomUser


class CustomUserCreationForm(UserCreationForm):
    class Meta(UserCreationForm):
        model = CustomUser
        fields = UserCreationForm.Meta.fields + ('name',)
        
class CustomUserChangeForm(UserChangeForm):
    class Meta:
        model = CustomUser
        fields = UserChangeForm.Meta.fields

管理员.py

from django.contrib import admin

# Register your models here.
from django.contrib.auth.admin import UserAdmin

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

class CustomUserAdmin(UserAdmin):
    add_form = CustomUserCreationForm
    change = CustomUserChangeForm
    model = CustomUser
    list_display = [
        "email",
        "username",
        "name",
        "is_staff",
    ]
    fieldsets = UserAdmin.fieldsets + ((None, {"fields": ("name",)}),)
    add_fieldsets = UserAdmin.add_fieldsets + ((None, {"fields": ("name",)}),)
admin.site.register(CustomUser, CustomUserAdmin)

Answer 1

Django 使用

AdminUserCreationForm

和

AdminPasswordChangeForm

分别表示

add_form

和

change_password_form

。

这些表格允许将密码设置为不可用。例如，这样做是为了防止用户使用密码登录（但例如使用 OTP 或通过其他方式）。

因此，您可以以这种形式混合

UserAdmin

：

from django.contrib.auth.forms import AdminUserCreationForm


class CustomUserCreationForm(AdminUserCreationForm):
    class Meta(UserCreationForm):
        model = CustomUser
        fields = AdminUserCreationForm.Meta.fields + ('name',)