def cartitem_api(req):
user = req.user
params = req.POST
c_id = int(params.get('c_id'))
op_type = params.get('op_type')
# 先拿cid对应的数据
cart_data = Cart.objects.get(pk=c_id)
sum_price, item_num = 0, 0
is_select_all = True
if op_type == 'sub':
#减商品数量
cart_data.num -= 1
if cart_data.num == 0:
cart_data.delete()
if Cart.objects.filter(user=user, is_selected=False).exists():
is_select_all = False
else:
is_select_all = True
else:
cart_data.save()
# 需要拿到所有该用户的选中商品的数据集
item_num = cart_data.num
cart_items = Cart.objects.filter(user=user, is_selected=True)
sum_price = get_cart_money(cart_items)
data = {
'code': SUCCESS,
'msg': 'ok',
'data': {
'sum_price': sum_price,
'item_num': item_num,
'is_select_all': is_select_all
}
}
return JsonResponse(data)
# 算钱 和 记录商品数量
else:
# 查库存
if cart_data.item.storenums < 1:
data = {"code": INVENTORY, "msg": "库存不足", "data": None}
return JsonResponse(data)
# 加操作
cart_data.num += 1
cart_data.save()
cart_items = Cart.objects.filter(user=user, is_selected=True)
sum_price = get_cart_money(cart_items)
# 保存 返回数据
data = {
"code": SUCCESS,
"msg": "ok",
"data": {
"sum_price": sum_price,
"item_num": cart_data.num,
}
}
return JsonResponse(data)
def select_all_api(req):
user = req.user
# 查询到所有的用户对应的购物车数据
cart_items = Cart.objects.filter(user=user)
is_all_select, sum_price = True, 0
# 判断是否存在 未选中的商品
if cart_items.filter(is_selected=False).exists():
# 全选操作
cart_items.filter(is_selected=False).update(is_selected=True)
# is_all_select = True
sum_price = get_cart_money(cart_items)
else:
cart_items.update(is_selected=False)
is_all_select = False
# sum_money = 0
#返回结果
data = {
"code": SUCCESS,
"msg": 'ok',
'data': {
"is_select_all": is_all_select,
"sum_price": sum_price
}
}
return JsonResponse(data)
def cart(req):
user = req.user
cart_items = Cart.objects.filter(user_id=user.id)
is_selected_all = True
if Cart.objects.filter(user=user, is_selected=False).exists():
is_selected_all = False
data = {
'title': '购物车',
'uname': user.username,
'phone': user.phone,
'address': user.address,
'cart_items': cart_items,
'is_selected_all': is_selected_all,
'sum_price': get_cart_money(cart_items)
}
return render(req, "cart/cart.html", data)
def order_api(req):
user = req.user
# 找购物车内被用户选中的数据
cart_items = Cart.objects.filter(user=user, is_selected=True)
if not cart_items.exists():
return JsonResponse({'code': 4, 'msg': '无商品可下单'})
#创建订单
order = Order.objects.create(user=user)
#创建订单详情
for i in cart_items:
OrderItem.objects.create(order=order, goods_id=i.item_id, num=i.num)
# 算钱
sum_price = get_cart_money(cart_items)
cart_items.delete()
return render(req, 'order/order.html', {
'order': order,
'sum_price': sum_price
})
def cart_status_api(req):
params = QueryDict(req.body)
user = req.user
cart_item = Cart.objects.get(pk=int(params.get('c_id')))
cart_item.is_selected = not cart_item.is_selected
cart_item.save()
cart_items = Cart.objects.filter(user=user, is_selected=True)
sum_price = get_cart_money(cart_items)
is_select_all = True
if Cart.objects.filter(user=user, is_selected=False).exists():
is_select_all = False
data = {
'code': SUCCESS,
'msg': 'ok',
'sum_price': sum_price,
'is_select_all': is_select_all,
'current_item_status': cart_item.is_selected
}
return JsonResponse(data)