def addtocart(request):
token = request.session.get('token')
response_data = {}
if token:
userid = cache.get(token)
if userid: # 已经登录
user = User.objects.get(pk=userid)
goodsid = request.GET.get('goodid')
color = request.GET.get('color')
size = request.GET.get('size')
number = request.GET.get('number')
goods = Goods.objects.get(pk=goodsid)
carts = Cart.objects.filter(user=user).filter(goods=goods)
if carts.exists():
carts1 = carts.filter(color=color).filter(size=size)
if carts1.exists():
cart = carts1.first()
cart.number = int(number) + cart.number
cart.save()
else:
cart = Cart()
cart.goods = goods
cart.user = user
cart.number = number
cart.size = size
cart.color = color
cart.save()
else:
cart = Cart()
cart.goods = goods
cart.user = user
cart.number = number
cart.size = size
cart.color = color
cart.save()
response_data['status'] = 1
response_data['msg'] = '添加 购物车成功'
return JsonResponse(response_data)
else:
response_data['status'] = -1
response_data['msg'] = '请登录后操作'
return JsonResponse(response_data)
def shopping(request):
data = {}
if request.method == 'GET':
token = request.session.get('token')
if token:
user = User.objects.get(token=token)
cart = Cart.objects.filter(user=user).filter(is_delete=0)
data['cart_num'] = cart.count()
data['user_name'] = user.name
data['cart'] = cart
return render(request, 'shopping.html', context=data)
else:
return render(request, 'shopping.html')
else:
token = request.session.get('token')
if token:
user = User.objects.get(token=token)
name = request.POST.get('name')
number = request.POST.get('number')
price = request.POST.get('price')
size = request.POST.get('size')
smallimg = request.POST.get('smallimg')
carts = Cart.objects.filter(user=user).filter(name=name).filter(
smallimg=smallimg)
if carts.filter(size=size).filter(is_delete=0).exists():
cart = carts.first()
cart.number += eval(number)
cart.save()
else:
cart = Cart()
cart.user = user
cart.name = name
cart.price = price
cart.size = size
cart.smallimg = smallimg
cart.number = number
cart.is_delete = 0
cart.save()
# 1、 第一次添加的商品是不存在的，要往数据库中添加一条新记录
return JsonResponse({
'msg': '{},添加购物车成功'.format(name),
'number': cart.number,
'status': 1
})
else:
return JsonResponse({'msg': '添加购物车失败，请先登录', 'status': 0})
