def addtocart(request):
goodid = request.GET.get('goodid')
token = request.session.get('token')
responseDate = {}
if token: #已登录
user = User.objects.get(token=token)
goods = Goods.objects.get(pk=goodid)
carts = Cart.objects.filter(user=user).filter(goods=goods)
if carts.exists(): #如果存在cart
cart = carts.first()
cart.goodnumber += 1
# print(cart.goodnumber)
if cart.goodnumber > int(goods.storenums):
cart.goodnumber = goods.storenums
cart.save()
responseDate['msg'] = '添加到购物车成功'
responseDate['status'] = '1'
responseDate['number'] = cart.goodnumber
return JsonResponse(responseDate)
else: #如果不存在cart,创建
cart = Cart()
cart.user = user
cart.goods = goods
cart.goodnumber = 1
cart.save()
responseDate['msg'] = '添加到购物车成功'
responseDate['status'] = '1'
responseDate['number'] = cart.goodnumber
return JsonResponse(responseDate)
else:
responseDate['msg'] = '未登录'
responseDate['status'] = '-1'
return JsonResponse(responseDate)
