Hello. I'm new to Django (and web development in general), and this is
my first post here. Hope someone can help me.
I'm trying to build a shopping cart, and my idea is to store the
product information (id and quantity) in a session when I add the
product to the shopping cart, and retrieve it to display in the "show
cart" page. I'm using sessions for this because I don't want the user
to have to log in or register just to add some items to the cart and
see the total price. When he logs in to actually buy something, I
pretend to store it in a cart model, but I didn't get there yet. I'll
show you the code I'm testing:
def add(request, product_id):
request.session.set_test_cookie()
if request.session.test_cookie_worked():
request.session.delete_test_cookie()
added = Product.objects.get(id=product_id)
request.session['product_id'] = added
return HttpResponseRedirect('/cart/')
else:
return HttpResponse('You need to enable cookies')
def cart(request):
if 'product_id' in request.session:
cart = request.session['product_id']
return render_to_response('cart.html', {'cart': cart})
else:
return HttpResponse('Cart is empty')
That's what I was able to come up with. The first problem is, it's not
working. The second problem is, I can't figure out how to add more
than one product to the cart.
The error I'm getting when I add something to the cart is "Caught an
exception while rendering: 'Product' object is not iterable". I'm
pretty sure that error has something to do with the cart.html, because
if I replace that line with:
return HttpResponse('You've added the product %s to the cart' % cart)
it works. The cart.html is just this:
{% for product in cart %}
<p>Your cart: {{ product.name }} - {{product.price}}</p>
{% endfor %}
It should work, right? I just can't figure what's causing that error.
Also, I need to be able to add more than one product to the cart, of
course, and to remove them as well. I was thinking of having the key
be the product id, and the value be the quantity. But how can I make
the id inside the product_id variable BE the name of the key? I don't
know if I'm making myself clear, english isn't my first language...
but when I call "request.session['product_id']", instead of it being
product_id, it could be the number inside it. If the product_id is 1,
it'd call "request.session['1']" or something like that. Or maybe have
multiple values for the product_id key, but then I'd have to think of
something else to work with the quantities. Maybe this isn't the
solution, but like I said, I'm pretty new to this and maybe I just
don't think like a programmer yet.
If someone has a simple solution to these problems, I'd be eternally
grateful.
--~--~---------~--~----~------------~-------~--~----~
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
django-users+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/django-users?hl=en
-~----------~----~----~----~------~----~------~--~---
