Django：覆盖ModelAdminForm的字段属性

Question

我正在尝试覆盖ModelAdmin的表单字段，如下所示：

class MyModelAdmin(admin.ModelAdmin):
    def get_form(self, *args, **kwargs):
        form = super(MyModelAdmin, self).get_form(*args, **kwargs)
        form.fields['password'].help_text = "..."
        return form

我收到属性错误：“类型对象'FailedLoginForm'没有属性'fields'”。

不是ModelAdmin.get_form（）返回一个常规的Django表单对象。怎么没有字段？

Answer 1

我建议您只是覆盖您想要的表单。

class UserCreationForm(UserCreationForm):   
    # we want to use the email as the username
    def __init__(self, *args, **kwargs):
        super(UserCreationForm, self).__init__(*args, **kwargs)
        # let's require these fields
        self.fields['email'].required = True
        self.fields['first_name'].required = True
        self.fields['last_name'].required = True
        # let's not require these
        self.fields['username'].required = False
        self.fields['password1'].required = False
        self.fields['password2'].required = False

从那里你可以做任何你想做的事。