Thanks Stephen. That helps a lot.
On Mar 13, 4:29 pm, Stephen DeGrace <degr...@gmail.com> wrote:
> It's not putting anything into the session. The session is basically a
> jazzed-up dictionary, and the get method works pretty much just like it does
> with the dictionary, it will try and get the objected pointed to by the key
> (the first argument) but if that doesn't work, it returns the default (the
> second argument) instead. Just like with a dictionary, there is no implicit
> assignment. If you want to assign a value to the entry in the session, you
> have to do so explicitly.
>
> The expression:
>
> cart = request.session.get('cart', None) or Cart()
>
> tries first to look for the key 'cart' in the session dictionary. If it is
> there, because of the short-circuit logic of the or operator, the Cart()
> never gets evaluated. If the key isn't in the dictionary, the get returns
> None and the part after the or gets evaluated, which results in a new Cart
> getting constructed and assigned to cart. Then if you want to save that
> object and put it in the session, you have to cart.save() and
> request.session['cart'] =cart just like you have in your get_cart method.
>
> Stephen
>
> On Fri, Mar 13, 2009 at 5:02 PM, sotirac <soti...@gmail.com> wrote:
>
> > Looking at the django-cart open source code:
>
> > cart = request.session.get('cart', None) or Cart()
>
> > Does the new cart object that recently got created be put back into
> > request.session['cart'].
>
> > I was thinking of improving the code located in
>
> >http://code.google.com/p/django-cart/source/browse/trunk/django-cart/...
> > by adding a get_cart()
>
> > def get_cart(request):
> > cart = request.session['cart']
> > if cart == None
> > cart = Cart()
> > cart.save()
> > request.session['cart'] = cart
> > return cart
>
> > Is there a cleaner way of doing this.
>
> > Thanks in advance.
>
> > On Mar 13, 3:57 pm, sotirac <soti...@gmail.com> wrote:
> > > What is happening here:
>
> > > fav_color = request.session.get('fav_color', 'red')
>
> > > Is it trying to retrieve 'fav_color' from the session. If it doesn't
> > > exist, does it put it in the session and assign the value 'red' for
> > > it.
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