Django 3：ManyToManyfield 原因：为用户指定的未知字段（用户名）。检查 class 自定义 UserAdmin 的 fields/fieldsets/exclude 属性

Question

我有一个没有用户名的自定义用户模型，而是使用电子邮件。

class User(AbstractUser):

    username = None
    email = models.EmailField(_("email address"), unique=True)
    uuid = models.CharField(max_length=36, default=uuid4, unique=True)
    USERNAME_FIELD = "email"
    REQUIRED_FIELDS = []
    objects = CustomUserManager()

    def __str__(self):
        return self.email

以及具有多个用户的项目模型：

from user.models import User

class Project(models.Model):

    project_id = models.AutoField(primary_key=True)
    name = models.CharField(max_length=256, unique=True, blank=False)
    created = models.DateTimeField(auto_now_add=True)
    description = models.TextField(max_length=10000, default="")
    slug = models.SlugField(max_length=256, unique=True)
    created_by = CurrentUserField(related_name='creator')
    users = models.ManyToManyField(User, related_name='users')
    ....

我的 UserAdmin 模型如下所示：

class CustomUserAdmin(UserAdmin):
    list_display = ("email", "is_staff", "is_superuser")
    readonly_fields = ("last_login", "date_joined", "uuid")
    ordering = ("email",)
    fieldsets = (
        (
            "Fields",
            {
                "fields": (
                    "email",
                    "uuid",
                    "date_joined",
                    "last_login",
                    "is_active",
                    "is_staff",
                    "is_superuser",
                    "groups",
                    "user_permissions",
                    "password",
                )
            },
        ),
    )


admin.site.register(User, CustomUserAdmin)

但是，当我转到项目实例的管理视图并尝试添加用户时，我得到：

FieldError at /admin/user/user/add/ Unknown field(s) (username) specified for User. Check fields/fieldsets/exclude attributes of class CustomUserAdmin. Request Method: GET Request URL: http://localhost:8000/admin/user/user/add/?_to_field=id&_popup=1 Django Version: 3.2.11 Exception Type: FieldError Exception Value:
Unknown field(s) (username) specified for User. Check fields/fieldsets/exclude attributes of class CustomUserAdmin.

我在设置中添加了我的用户模型作为默认模型，所以我不知道这里的用户名字段来自哪里。

Answer 1

username 字段仍然是 search_fields 和 add_fieldsets 的一部分。因此，您应该删除那里的 username 字段：

class CustomUserAdmin(UserAdmin):
    list_display = ('email', 'is_staff', 'is_superuser')
    readonly_fields = ('last_login', 'date_joined', 'uuid')
    ordering = ('email',)
    <strong>search_fields</strong> = ('first_name', 'last_name', 'email')  # 🖘 no username
    fieldsets = (
        (
            'Fields',
            {
                'fields': (
                    'email',
                    'uuid',
                    'date_joined',
                    'last_login',
                    'is_active',
                    'is_staff',
                    'is_superuser',
                    'groups',
                    'user_permissions',
                    'password',
                )
            },
        ),
    )
    <strong>add_fieldsets</strong> = (
        (None, {
            'classes': ('wide',),
            'fields': (<strong>'email'</strong>, 'password1', 'password2'),
            #              🖞 without username
        }),
    )


admin.site.register(User, CustomUserAdmin)

Django 3：ManyToManyfield 原因：为用户指定的未知字段（用户名）。检查 class 自定义 UserAdmin 的 fields/fieldsets/exclude 属性

Django3: ManyToMany field causes: Unknown field(s) (username) specified for User. Check fields/fieldsets/exclude attributes of class CustomUserAdmin

django

django-models