Unable to display two forms in a view

[chevalier]

I have two related models (Sim and Payment - A Sim can have many Payment). On searching of Sim (by ID ) i want its detail to be populated in a form (which i am able to). But using the same form i want to save the details of Payment model as well and want to update the Sim model as well.

I am only able to populate only Sim form using the id but the AddPaymentForm is not populating.

def updatePayment(request, id):
    sim  = get_object_or_404(Sim, pk=id)
    payment = AddPaymentForm()
    sim_form = UpdatePayment(request.POST, instance=sim)
    if request.method == "POST":
        # sim_form = UpdatePayment(request.POST, instance=payment)
        payment_form = AddPaymentForm()
        try:
            if payment_form.is_valid():
                payment_form.save()
                sim_form.save()
                messages.success(request, ("Payment has been updated"))
            else:
                messages.warning(request, ("Data in fields is incorrect, please try again"))
        except Exception as e:
            messages.warning(request, ("Error: {}".format(e)))
    else:
        form = UpdatePayment(instance=sim)
        payment = AddPaymentForm()
    context = {'payment': payment, 'form': form,}
    return render(request, 'payment/updatePayment.html', context) 

[Gil Obradors]

Of course, you don't have poppulated payment_form ? Only initializated,

payment_form = AddPaymentForm()

If I'm not helping you, please attach more code

good luck!

Missatge de chevalier <cheva...@gmail.com> del dia ds., 24 d’ag. 2019 a les 17:37:

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[chevalier]

Even after adding the instance i am unable to populate my form. However, if i individually populate each form both of them populate.

def updatePayment(request, id):
    sim  = get_object_or_404(Sim, pk=id)

    payment = AddPaymentForm(request.POST or None, instance=Payment)
    if request.method == "POST":
        payment_form = AddPaymentForm(request.POST or None, instance=Payment)
        sim_form = UpdatePayment(request.POST, instance=sim)

        try:
            if payment_form.is_valid():
                payment_form.save()
                sim_form.save()
                messages.success(request, ("Payment has been updated"))
            else:
                messages.warning(request, ("Data in fields is incorrect, please try again"))
        except Exception as e:
            messages.warning(request, ("Error: {}".format(e)))
    else:
        form = UpdatePayment(instance=sim)

        payment = AddPaymentForm(request.POST or None, instance=Payment)

    context = {'payment': payment, 'form': form,}
    return render(request, 'payment/updatePayment.html', context)

Thanks for you help

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[Gil Obradors]

Models and forms ?

And/Or the output of print(request.POST) ?

Where you code take you?

• "Data in fields is incorrect, please try again"?
• Exceptions?
• Or  maybe to payment_form.is_valid()  as false?
  

Missatge de chevalier <cheva...@gmail.com> del dia ds., 24 d’ag. 2019 a les 18:49:

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