def addCart(request):
gid = request.GET.get('gid')
#获取用户是否登录
uid = request.session.get('uid')
data = {
'code': 0,
'msg': 'ok',
}
if not uid: # 用户未登录
data['code'] = '-1' #用户未登录
data['msg'] = '用户未登录'
else:
# 查询购物车中是否由该商品，如果有，数量加1
carts = Cart.objects.filter(goods_id=gid).filter(user_id=uid)
if carts.exists():
cart = carts.first()
cart.num += 1
else:
# 没有则创建
cart = Cart()
cart.user_id = uid
cart.goods_id = gid
cart.num += 1
cart.save()
data['num'] = cart.num
return JsonResponse(data)
