def add_to_cart(request):
user_id = request.session.get('user_id')
user = get_user_by_id(user_id)
data = {}
if not user:
# 重定向
data['status'] = '302'
data['msg'] = 'not login'
else:
goods_id = request.GET.get("goodsid")
carts = Cart.objects.filter(c_user=user).filter(c_goods_id=goods_id)
if carts:
# 商品已存在时（数量不为0）
cart_obj = carts[0]
cart_obj.c_goods_num = cart_obj.c_goods_num + 1
cart_obj.save()
else:
# 商品不存在
cart_obj = Cart()
cart_obj.c_goods_id = goods_id
cart_obj.c_user_id = user_id
cart_obj.save()
data['msg'] = 'add success'
data['status'] = '200'
data['cart_goods_num'] = cart_obj.c_goods_num
return JsonResponse(data)
def add_to_cart(request):
user_id = request.session.get('user_id')
user = get_user_by_id(user_id)
data = {}
if not user:
# 重定向
data['status'] = "902"
data['msg'] = "not login"
else:
goods_id = request.GET.get("goodsid")
carts = Cart.objects.filter(c_user=user).filter(c_goods_id=goods_id)
if carts.exists():
cart_obj = carts.first()
cart_obj.c_goods_num = cart_obj.c_goods_num + 1
cart_obj.save()
else:
cart_obj = Cart()
cart_obj.c_goods_id = goods_id
cart_obj.c_user_id = user_id
cart_obj.save()
data['msg'] = 'add success'
data['status'] = "201"
data['cart_goods_num'] = cart_obj.c_goods_num
return JsonResponse(data)
def add_to_cart(request):
goodsid = request.GET.get('goodsid')
user_id = request.session.get("user_id")
carts = Cart.objects.filter(c_user_id=user_id).filter(c_goods_id=goodsid)
if carts.exists():
cart_obj = carts.first()
cart_obj.c_goods_num = cart_obj.c_goods_num + 1
else:
cart_obj = Cart()
cart_obj.c_user_id = user_id
cart_obj.c_goods_id = goodsid
cart_obj.save()
data = {
'status': 200,
'msg': 'add succcess',
'c_goods_num': cart_obj.c_goods_num,
}
return JsonResponse(data)
def create(self, request, *args, **kwargs):
goodid = request.POST.get('c_goods_id')
carts = Cart.objects.filter(c_user_id=request.user.id).filter(
c_goods_id=goodid)
action = request.GET.get('action')
if carts.exists():
cart_obj = carts.first()
data = {
'status': 200,
'msg': 'success',
'goods_num': cart_obj.c_goods_num
}
if action == 'add':
cart_obj.c_goods_num = cart_obj.c_goods_num + 1
elif action == 'sub' and cart_obj.c_goods_num > 0:
cart_obj.c_goods_num = cart_obj.c_goods_num - 1
elif cart_obj.c_goods_num == 0:
data['goods_num'] = 0
else:
raise exceptions.ParseError
data['goods_num'] = cart_obj.c_goods_num
cart_obj.save()
else:
data = {
'status': 200,
'msg': 'success',
}
if action == 'sub':
data['msg'] = '购物车无该商品'
elif action == 'add':
cart_obj = Cart()
cart_obj.c_user_id = request.user.id
cart_obj.c_goods_id = goodid
data['goods_num'] = 1
cart_obj.save()
else:
raise exceptions.ParseError
return JsonResponse(data=data)
def add_to_cart(request):
user_id = request.session.get('user_id')
user = get_user_by_id(user_id)
# ##
cartid = request.GET.get("cartid")
data = {}
if not user:
# 重定向
data['status'] = "902"
data['msg'] = "not login"
else:
# goods_id = request.GET.get("goodsid")
goods_id = request.GET.get("goodsid") or Cart.objects.get(
pk=cartid).c_goods_id
carts = Cart.objects.filter(c_user=user).filter(c_goods_id=goods_id)
if carts.exists():
cart_obj = carts.first()
cart_obj.c_goods_num = cart_obj.c_goods_num + 1
cart_obj.save()
else:
cart_obj = Cart()
cart_obj.c_goods_id = goods_id
cart_obj.c_user_id = user_id
cart_obj.save()
data['msg'] = 'add success'
data['status'] = "200"
data['c_goods_num'] = cart_obj.c_goods_num
data["total_price"] = get_total_price(request.session.get("user_id"))
return JsonResponse(data)
def get(self, request):
if request.method == 'GET':
token = request.GET.get('token')
try:
u_id = cache.get(token)
user = User.objects.get(pk=u_id)
request.user = user
except Exception as e:
print("错误提示：", e)
data = {'status': 901}
return JsonResponse(data=data)
foodid = request.GET.get("foodid")
is_add = int(request.GET.get("is_add"))
carts = Cart.objects.filter(c_user_id=request.user).filter(
c_foods_id=foodid)
# 加
if is_add == 1:
if carts.exists():
c_obj = carts.first()
c_obj.c_foods_num = c_obj.c_foods_num + 1
else:
c_obj = Cart()
c_obj.c_foods_id = foodid
c_obj.c_user_id = u_id
c_obj.save()
data = {
'status': 200,
"c_foods_num": c_obj.c_foods_num,
}
return JsonResponse(data=data)
# 减
elif is_add == 0:
if carts.exists():
c_obj = carts.first()
if c_obj.c_foods_num >= 1:
c_obj.c_foods_num = c_obj.c_foods_num - 1
c_obj.save()
data = {
'status': 200,
"c_foods_num": c_obj.c_foods_num,
}
if c_obj.c_foods_num == 0:
Cart.objects.filter(pk=c_obj.id).delete()
return JsonResponse(data=data)
data = {
'status': 200,
"c_foods_num": 0,
}
return JsonResponse(data=data)
else:
if carts.exists():
c_obj = carts.first()
data = {
'status': 200,
"c_foods_num": c_obj.c_foods_num,
}
else:
data = {
'status': 200,
"c_foods_num": 0,
}
return JsonResponse(data=data)