I try to customize Django PasswordResetView in order to validate the length of the password but I get this error:

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

It is obvious that SetPasswordForm class needs to be taken user upon initialization:

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

I do not find a clear solution to how to pass user data to PasswordResetView and PasswordResetForm because user data is used upon PasswordResetForm instance creation.

CodePudding user response：

The SetPasswordForm is used in the PasswordResetConfirmView view, not the PasswordResetView. In the PasswordResetConfirmView, the get_form_kwargs() method [Django-doc] is overridden with [GitHub]:

def get_form_kwargs(self):
    kwargs = super().get_form_kwargs()
    kwargs['user'] = self.user
    return kwargs

You thus likely should subclass the PasswordResetConfirm view, and work with the PasswordResetForm form for the PasswordResetView.