查找和更新嵌套级别

Question

我想找到和更新的值量3在我的ID是“5cc6d9737760963ea07de411”

我的数据：

[
    {
        "products" : [ {
                    "id" : "5cc6d9737760963ea07de411",
                    "quantity" : 1,
                    "totalPrice" : 100,
                }, 
                {
                    "id" : "5cc6d9737760963ea07de412",
                    "quantity" : 2,
                    "totalPrice" : 200,
                }
        ],
        "isCompleted" : false,
        "_id" : "5cc7e4096d7c2c1f03570a2f"
    },
    {
        "products" : [{
                    "id" : "5cc6d9737760963ea07de414",
                    "quantity" : 1,
                    "totalPrice" : 100,
                }, 
                {
                    "id" : "5cc6d9737760963ea07de4133",
                    "quantity" : 2,
                    "totalPrice" : 200,
                }
        ],
        "isCompleted" : false,
        "_id" : "5cc7e4096d7c2c1f03570a2f"
    }

]

我试过了：

Schema.findOneAndUpdate({_id: ""},{ "products": {"quantity": 3}})

但它不起作用。

Answer 1

您必须在此处使用.dot符号和位置运算符$

Schema.findOneAndUpdate(
  { "products.id": "5cc6d9737760963ea07de411" },
  { "products.$.quantity": 3 }
)