Django 表单给出 'str' 对象没有属性 '_meta'

Question

我正在制作一个如下所示的自定义用户模型

accounts/models.py

class MyUser(AbstractUser):
    role_tuple = (
        ('admin', 'admin'),
        ('user', 'user'),
        ('activist', 'activist'),
    )
    role = models.CharField(null = True, default='user', max_length = 200, choices = role_tuple)
    user_proof_image = models.ImageField(null=True, upload_to='user_proof_images')

添加到 settings.py

AUTH_USER_MODEL = 'accounts.MyUser'

我现在想使用自定义用户模型创建一个表单，所以我使用了

from django.contrib.auth.forms import UserCreationForm
from CPW.settings import AUTH_USER_MODEL

class CreateUserForm(UserCreationForm):
    class Meta:
        model = AUTH_USER_MODEL
        fields = ['username', 'email', 'password1', 'password2', 'role']

但它告诉我

from .forms import CreateUserForm
  File "C:\Users\xyz\OneDrive\Desktop\Django\CPW\user_auth\forms.py", line 4, in <module>
    class CreateUserForm(UserCreationForm):
  File "C:\Users\xyz\AppData\Local\Programs\Python\Python37\lib\site-packages\django\forms\models.py", line 258, in __new__
    apply_limit_choices_to=False,
  File "C:\Users\xyz\AppData\Local\Programs\Python\Python37\lib\site-packages\django\forms\models.py", line 142, in fields_for_model
    opts = model._meta
AttributeError: 'str' object has no attribute '_meta'

我从未尝试过自定义用户的形式。有帮助吗？

Answer 1

AUTH_USER_MODEL 是一个包含 <i>app_name</i>.<i>ModelName</i>[= 的字符串23=] 的用户模型。您可以在 <code>ForeignKey 等关系中使用它，但不能在 ModelForm 中使用。您可以使用 get_user_model() function [Django-doc]:

from django.contrib.auth import <strong>get_user_model</strong>
from django.contrib.auth.forms import UserCreationForm

class CreateUserForm(UserCreationForm):
    class Meta:
        model = <strong>get_user_model()</strong>
        fields = ['username', 'email', 'password1', 'password2', 'role']

Django 表单给出 'str' 对象没有属性 '_meta'

Django forms gives 'str' object has no attribute '_meta'

django

django-models

django-forms