组对象没有属性 user_set

Question

我正在使用通过 AbstractBaseUser 创建的自定义用户，我尝试使用 django 管理将用户添加到特定组。但是没有将用户添加到组的选项。所以我从堆栈溢出中找到了一个解决方案，它让我能够将用户添加到我创建的组中。但是保存用户后它给了我一个错误说 Group object has no attribute user_set

我的用户模型

class MyAccountManager(BaseUserManager):
    def create_user(self, email, username, password=None):
        if not email:
            raise ValueError("Users must have an email address")
        if not username:
            raise ValueError("Users must have an username")
        user = self.model(
            email=self.normalize_email(email),
            username=username,
        )

        user.set_password(password)
        user.save(using=self._db)
        return user

    def create_superuser(self, email, username, password):
        user = self.create_user(
            email=self.normalize_email(email),
            username=username,
            password=password,
        )

        user.is_admin = True
        user.is_staff = True
        user.is_superuser = True
        user.save(using=self._db)
        return user


class User(AbstractBaseUser):
    email = models.EmailField(verbose_name='email', max_length=80, unique=True)
    username = models.CharField(max_length=30, unique=True)
    first_name = models.CharField(max_length=100,null=True)
    last_name = models.CharField(max_length=100,null=True)
    phone_no = models.CharField(max_length=12,null=True)
    date_joined = models.DateField(
        verbose_name='date joined', auto_now_add=True)
    last_login = models.DateField(verbose_name='last login', auto_now=True)
    is_admin = models.BooleanField(default=False)
    is_active = models.BooleanField(default=True)
    is_staff = models.BooleanField(default=False)
    is_superuser = models.BooleanField(default=False)
    is_teacher = models.BooleanField(default=False)


    USERNAME_FIELD = 'email'
    REQUIRED_FIELDS = ['username']

    objects = MyAccountManager()

    def __str__(self):
        return self.email

    def has_perm(self, perm, obj=None):
        return self.is_admin

    def has_module_perms(self, app_label):
        return True

我从Whosebug得到的代码

User = get_user_model()


# Create ModelForm based on the Group model.
class GroupAdminForm(forms.ModelForm):
    class Meta:
        model = Group
        exclude = []

    # Add the users field.
    users = forms.ModelMultipleChoiceField(
         queryset=User.objects.all(),
         required=False,
         # Use the pretty 'filter_horizontal widget'.
         widget=FilteredSelectMultiple('users', False)
    )

    def __init__(self, *args, **kwargs):
        # Do the normal form initialisation.
        super(GroupAdminForm, self).__init__(*args, **kwargs)
        # If it is an existing group (saved objects have a pk).
        if self.instance.pk:
            # Populate the users field with the current Group users.
            self.fields['users'].initial = self.instance.user_set.all()

    def save_m2m(self):
        # Add the users to the Group.
        self.instance.user_set.set(self.cleaned_data['users'])

    def save(self, *args, **kwargs):
        # Default save
        instance = super(GroupAdminForm, self).save()
        # Save many-to-many data
        self.save_m2m()
        return instance

为什么会出现这个错误，是否有任何解决方案

谢谢！

Answer 1

Django 在 PermissionsMixin 中实现了组关系，所以你没有那个特定的关系

您可以实施 AbstractUser class 或者添加 Mixin

class User(AbstractBaseUser, PermissionsMixin):

组对象没有属性 user_set

Group object has no attribute user_set

python

django

usergroups

django-admin