def show(request):
cart = getCart(request)
item_set=[]
if '_auth_user_id' in request.session:
item_set=cart.cartitem_set.all()
else:
if cart:
for album_key in cart:
item=Item()
item.album=album_key
item.amount=cart[album_key]
item_set.append(item)
for item in item_set:
print item.album
return render_to_response('my_cart.html', {
'item_set': item_set},
context_instance=RequestContext(request))
def add_to_cart(request, album_id):
cart=getCart(request)
#专辑是否存在
try:
album=Album.objects.get(pk=album_id)
except:
raise Http404
#数量是否选择
if 'amount' in request.GET:
if not re.search(r'\d+$', request.GET['amount']):
raise Http404
else:
amount=int(request.GET['amount'])
else:
amount=1
#是否已有该专辑
if '_auth_user_id' in request.session:
try:
item = cart.cartitem_set.get(album=album)
item.amount+=amount
item.save()
except ObjectDoesNotExist:
item=CartItem.objects.create(cart=cart, album=album, amount=amount)
#匿名用户购物车
else:
if album in cart:
cart[album]+= amount
else:
cart[album]=amount
item=Item()
item.album=album
item.amount=cart[album]
request.session['cart']=cart
return render_to_response('new_item.html',
{'item': item,
'amount': amount},
context_instance=RequestContext(request))