[Fixed]-Django: using multiple models in one view

    guest = get_object_or_404(Guest, pk=pk)
    # The 404 will catch any bad requests
    orders = Order.objects.filter(guest = guest, is_paid=False)
    context = {'form': form}
    context['orders'] = orders

remember to add it to your context and you can access it in the template

you could get the Orders via the foreign key, by default (if not set via related_name):

guest.order_set.objects


Good luck!

I think you need to query Order instance from given Guest check this my help you:
orders = Order.objects.filter(guest=guest).all()
this will retrieve list of orders that you want