从Django Auth中的UserChangeForm中排除用户名或密码

Question

我正在试图找出如何从中排除用户名和/或密码的方法UserChangeForm.我试过了两个exclude,fields但我不适用于这两个领域.

这是一些代码:

class ArtistForm(ModelForm):
    class Meta:
        model = Artist
        exclude = ('user',)

class UserForm(UserChangeForm):
    class Meta:
        model = User
        fields = (
            'first_name',
            'last_name',
            'email',
            )
        exclude = ('username','password',)

    def __init__(self, *args, **kwargs):
        self.helper = FormHelper
        self.helper.form_tag = False
        super(UserForm, self).__init__(*args, **kwargs)
        artist_kwargs = kwargs.copy()
        if kwargs.has_key('instance'):
            self.artist = kwargs['instance'].artist
            artist_kwargs['instance'] = self.artist
        self.artist_form = ArtistForm(*args, **artist_kwargs)
        self.fields.update(self.artist_form.fields)
        self.initial.update(self.artist_form.initial)

    def clean(self):
        cleaned_data = super(UserForm, self).clean()
        self.errors.update(self.artist_form.errors)
        return cleaned_data

    def save(self, commit=True):
        self.artist_form.save(commit)
        return super(UserForm, self).save(commit)

Answer 1

如果使用,您将无法执行此操作UserChangeForm.

请参阅https://github.com/django/django/blob/master/django/contrib/auth/forms.py.

您会注意到UserChangeForm在此页面上明确定义username和password.这些字段存在于declared_fields表单上的变量中.

exclude并且fields只适用于从中model定义的字段Meta.如果您明确定义某个字段declared_fields,即使它们已被排除使用,它们将出现在表单上exclude.所以,这些字段为您显示.

有关此检查__new__的更多信息,请ModelFormMetaclass访问https://github.com/django/django/blob/master/django/forms/models.py

解决方法:

不要使用UserChangeForm并阅读其代码.它没有为你提供太多.您可以编写自己的表单,该表单仅从用户扩展ModelForm并设置Meta Model为用户.从UserChangeForm表单中复制部件.

class UserForm(forms.ModelForm):

    class Meta:
        model = User

    def __init__(self, *args, **kwargs):
        #copy any functionality you want form UserChangeForm

    def clean_password(self):
        #copy functionality provided by UserChangeForm 

Answer 2

对于Django v2，只需将密码设置为None。

class UserForm(UserChangeForm):
    password = None

    class Meta:
        model = User
        fields = (
            'first_name',
            'last_name',
            'email',
            )