Your proposal seems reasonable - if actually saving, we should save the m2m fields too.
I think the best next step would be to file a ticket and work on a PR. The first step would be to add a test case reproducing the issue. On Wed, Nov 23, 2022 at 4:59 PM Mark Gensler <mark.gens...@gmail.com> wrote: > Hello all! > > I noticed that when calling contrib.auth.forms.UserCreationForm.save(), > self.save_m2m() is not called when commit=True. > > This caused an issue in one of my projects which uses a custom User model > with ManyToMany fields. Is this something that should be changed? I saw in > the docs [1] that it is advised to extend UserCreationForm and > UserChangeForm if using a custom User model. > > A few reasons I see to add this step to the UserCreationForm.save() method: > > - UserCreationForm is a subclass of ModelForm, which does call > save_m2m() when commit=True. > - UserChangeForm *does* call save_m2m() as part of save(), because the > save() method is not overloaded. This seems inconsistent! > > The solution I'd propose is: > > class UserCreationForm(forms.ModelForm): > ... > def save(self, commit=True): > user = super().save(commit=False) > user.set_password(self.cleaned_data["password1"]) > if commit: > user.save() > * if hasattr(self, "save_m2m"):* > * self.save_m2m()* > return user > > I'd be happy to raise a ticket and work on a patch if this change would be > useful. > > Thanks > Mark > > [1] > https://docs.djangoproject.com/en/dev/topics/auth/customizing/#custom-users-and-the-built-in-auth-forms > > -- > You received this message because you are subscribed to the Google Groups > "Django developers (Contributions to Django itself)" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to django-developers+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/django-developers/c8dac66b-4a0f-4afa-b548-260fffb06e9fn%40googlegroups.com > <https://groups.google.com/d/msgid/django-developers/c8dac66b-4a0f-4afa-b548-260fffb06e9fn%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "Django developers (Contributions to Django itself)" group. To unsubscribe from this group and stop receiving emails from it, send an email to django-developers+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/django-developers/CAMyDDM31PTwg%2Bs-QUTjajdubSJBXf-p1f4odX89tmCzKe0%3DfaA%40mail.gmail.com.
