special_wizard_view.py

class ServicesAgreementWizardGeneralInformation(ServicesAgreementWizard):
    """Step 1 of the ServicesAgreement wizard."""

    form_class = GeneralInformationForm

    def form_valid(self, form):
        """..."""
        obj = self.object

        if not obj.contractor:
            obj.contractor = Party.objects.create()
        if not obj.lender:
            obj.lender = Party.objects.create()

        obj.contractor.type = form.cleaned_data['contractor_type']
        obj.contractor.name = form.cleaned_data['contractor_name']
        obj.contractor.save()
        obj.lender.type = form.cleaned_data['lender_type']
        obj.lender.name = form.cleaned_data['lender_name']
        obj.lender.save()

        obj.save()

        # this redirects to success url (FormMixin)
        return super(ServicesAgreementWizardGeneralInformation, self).form_valid(form)

    def get_form_class(self):
        """Returns the form class to use in this view"""
        # Revert to default behavior instead of custom method in parent class
        return self.form_class

    def get_initial(self):
        """Returns the initial data to use for forms on this view."""
        initial = {}

        if self.object.contractor:
            initial.update({
                'contractor_type': self.object.contractor.type,
                'contractor_name': self.object.contractor.name,
            })

        if self.object.lender:
            initial.update({
                'lender_type': self.object.lender.type,
                'lender_name': self.object.lender.name,
            })

        return initial