pk, thank you very much for your hint, now everything works ok.
:-) On 9 Dic, 18:41, pk <[EMAIL PROTECTED]> wrote: > This is a pretty common problem. Each form object gets instantiated as > you need them. > So in your POST handling, you need to instantiate the form with the > same product field > so that it can populate the choice field setting correct. i.e. > FormForOptionQuantity(product,request) > > P.K. > > On Dec 9, 7:31 am, pinco <[EMAIL PROTECTED]> wrote: > > > Hi, > > > I'm trying to populate dynamically at runtime achoicefieldand > > subsequently validate the user choice, but without results. > > The goal is to permit the user, in an e-commerce application, to > > choose the number of products to buy through achoicefield, with a > > list of integer from 1 to a maximum number set to the amount of > > products in stock (i.e. if I have 5 products in stock, the choice > > should be restricted to 1, 2, 3, 4, 5). > > > The following snippet actually populated in a right way the > > choicefiled: > > > class FormForProductQuantity(forms.Form): > > quantity = forms.ChoiceField() > > > def __init__(self, product, *args, **kwargs): > > super(FormForProductQuantity, self).__init__(*args, > > **kwargs) > > self.fields['quantity'].choices = [(str(product.id) + "_" + > > str(c), > > c) for c in range (1, product.stock_quantity)] > > > The problems come when I try to validate user's choice and add the > > product to the shopping cart with the following snippet: > > > def add_product_to_cart(request, product_id): > > if request.method == 'POST': > > product = Product.objects.get(pk=product_id) > > form = FormForOptionQuantity(request.POST) > > if form.is_valid(): > > ... do something > > > which raise an the error: > > > Traceback: > > ... > > Exception Value: 'QueryDict' object has no attribute 'stock_quantity' > > > I have no idea on how to correct my code. > > > Thank you in advance for any help. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Django users" group. To post to this group, send email to django-users@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/django-users?hl=en -~----------~----~----~----~------~----~------~--~---
