Class-based views for M2M relationship with intermediate model

Question

I have a M2M relationship between two Models which uses an intermediate model. For the sake of discussion, let\'s use the example from the manual:

class Pers         


        

Answer 1

'For reference, I didn't end up using a class-based view, instead I did something like this:

def group_create(request):
    group_form = GroupForm(request.POST or None)
    if request.POST and group_form.is_valid():
        group = group_form.save(commit=False)
        membership_formset = MembershipFormSet(request.POST, instance=group)
        if membership_formset.is_valid():
            group.save()
            membership_formset.save()
            return redirect('success_page.html')
    else:
        # Instantiate formset with POST data if this was a POST with an invalid from,
        # or with no bound data (use existing) if this is a GET request for the edit page.
        membership_formset = MembershipFormSet(request.POST or None, instance=Group())

    return render_to_response(
        'group_create.html',
        {
            'group_form': recipe_form,
            'membership_formset': membership_formset,
        },
        context_instance=RequestContext(request),
    )

This may be a starting point for a Class-based implementation, but it's simple enough that it's not been worth my while to try to shoehorn this into the Class-based paradigm.