Django 自定义 PasswordResetView：__init__() 缺少 1 个必需的位置参数：'user'

Question

我尝试自定义 Django PasswordResetView 以验证密码的长度，但我收到此错误：

TypeError at /accounts/password_reset/
__init__() missing 1 required positional argument: 'user'

views.py

from django.contrib.auth import views as auth_views

class PasswordResetView(auth_views.PasswordResetView):
    form_class = PasswordResetForm
    template_name = "accounts/users/password_reset.html"
    email_template_name = "accounts/users/password_reset_email.html"
    subject_template_name = "accounts/users/password_reset_subject.txt"
    from_email = settings.EMAIL_HOST_USER
    success_url = reverse_lazy("accounts_password_reset_done")

forms.py

from django.contrib.auth.forms import SetPasswordForm

class PasswordResetForm(SetPasswordForm):

    def clean_new_password1(self):
        password = self.cleaned_data.get("new_password1")
        if len(password) < 12:
            raise forms.ValidationError("Password must be at least 12 characters.")
        return password

显然 SetPasswordForm class 需要在初始化时带用户:

class SetPasswordForm(forms.Form):
   . . .
    
    def __init__(self, user, *args, **kwargs):
        self.user = user
        super().__init__(*args, **kwargs)

我没有找到如何将 user 数据传递给 PasswordResetView 和 PasswordResetForm 的明确解决方案，因为在创建 PasswordResetForm 实例时会使用用户数据。

Answer 1

SetPasswordForm 用于 PasswordResetConfirmView 视图，而不是 PasswordResetView。在PasswordResetConfirmView、get_form_kwargs() method [Django-doc] is overridden with [GitHub]中：

def get_form_kwargs(self):
    kwargs = super().get_form_kwargs()
    <strong>kwargs['user'] = self.user</strong>
    return kwargs

因此，您可能应该子类化 PasswordResetConfirm 视图，并使用 PasswordResetForm 表单作为 PasswordResetView.