MongoDB 上的 .updateOne 在 Node.js 中不起作用 [英] .updateOne on MongoDB not working in Node.js

问题描述

我有以下代码:

connection((db) => {
            db.collection('orders')
                .updateOne(
                    { "_id": req.body._id}, // Filter
                    {"name": req.body.name} // Update
                )
                .then((obj) => {
                    console.log('Updated - ' + obj);
                    res.redirect('orders')
                })
                .catch((err) => {
                    console.log('Error: ' + err);
                })
        })

我想更改订单中的名称但它没有更新它.控制台中的结果是

I want to change the name in the order but it doesn't update it. The result in the console is

更新 - {"n":0,"nModified":0,"ok":1}

我试图阅读文档，但它太可怕了

I tried to read the documentation but it's horrific

{$set: {"name": req.body.name}}, 效果不佳

EDIT 2:传递的 ID 与数据库中的 _id 匹配.我在数据库中查询纯文本 ID 是否有问题，它被称为ObjectId('5a42ja...')"

EDIT 2: The passed ID matches the _id in the database. Could it be a problem that I'm querying for plain text ID while in the database it is referred to as "ObjectId('5a42ja...')"

推荐答案

也许你应该像这样在更新查询中使用$set":

Maybe you should use "$set" in your update query like this :

{$set: {"name": req.body.name}}, // Update

文档

编辑

如果它不起作用，这可能是因为与您的过滤器不匹配.

If it doesn't work, this is probably because there is no match with your filter.

也许你应该尝试像这样匹配一个 ObjectId :

Maybe you should try to match with an ObjectId like this :

var ObjectID = require('mongodb').ObjectID;

// In your request
{ "_id": ObjectID(req.body._id)}, // Filter

希望有帮助.

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