Django Form Wizard to Edit Model

Question

I have a Django form wizard working nicely for creating content of one of my models. I want to use the same Wizard for editing data of existing content but can\'t find a good ex

Answer 1

An update that works with Django 3.1 and django-formtools 2.2. In my case i had two models (Colaborattor and User), connected through OneToOneField. I show the user form in step 0 and colaborattor form in step 1:

models.py:

class Colaborattor(models.Model):
    user = models.OneToOneField(User, on_delete=models.CASCADE)
    nome = models.CharField("Nome completo", max_length=128)
    ...

views.py:

class UpdateColaborattorWizard(SessionWizardView):
    form_list = [forms.UserRegisterForm, forms.ColaborattorForm]
    template_name = "criar_colaborador.html"

    def get_form_instance(self, step):
        # step 0: user form
        if 'colaborattor_pk' in self.kwargs and step == '0':
            colaborattor_pk = self.kwargs['colaborattor_pk']
            colaborattor = models.Colaborattor.objects.get(pk=colaborattor_pk)
            user = colaborattor.user
            return user
        # step 1: colaborattor form
        elif 'colaborattor_pk' in self.kwargs and step == '1':
            colaborattor_pk = self.kwargs['colaborattor_pk']
            colaborattor = models.Colaborattor.objects.get(pk=colaborattor_pk)
            return colaborattor
        # The default implementation
        return self.instance_dict.get(step, None)

I hope it helps someone with the same problem.