Javascript 如何修复TypeError:db.collections.update不是一个函数？

当登录用户提交集合中的单个输入字段时，我想在集合中使用两个新的“key:value”对更新文档，该字段如下所示：

_id:60796d35822f7c0004647717
name:"<username>"
email:"useremail@gmail.com"
password:"$2a$10$xFerC/qbmrvY4Ue7f56TtetBroeBHgjmFgd04G/4RAk2DcT68sL1C"
date:2021-04-16T10:55:49.762+00:00
__v:0

我试过跑步：

但这一切加上我的其他努力都无济于事

已更新

if (errors.length > 0) {
    res.render("login", { errors });
  } else {
    // Validation passed.

    const userId = req.user._id;

    User.find({ _id: userId }).then((user) => {
      if (user) {
        console.log(user);
        // This belowe is what is returned in user in my console:
==========================================================================
         {
             _id: 607849 b9d098dd2390892fd3,
             name: 'Klem Lloyd Mwenya',
             email: 'Klem.lloyd@groupkse.net',
             password: '$2a$10$NuW5.b8yrfWtN6APKz4AleqXhZUkd3N08V6PC3LgN4V6JDKvHvf9e',
             date: 2021 - 04 - 15 T14: 12: 09.224 Z,
             __v: 0
         }
==========================================================================
      }
    });
  }

我希望将其修改为以下内容：

{
             _id: 607849 b9d098dd2390892fd3,
             name: 'Klem Lloyd Mwenya',
             email: 'Klem.lloyd@groupkse.net',
             investDate: <Some date like this> (2021 - 04 - 15 T14: 12: 09.224 Z,)
             investAmount: <Some amount like this> 500
             password: '$2a$10$NuW5.b8yrfWtN6APKz4AleqXhZUkd3N08V6PC3LgN4V6JDKvHvf9e',
             date: 2021 - 04 - 15 T14: 12: 09.224 Z,
             __v: 0
         }

{
_识别号：607849 b9d098dd2390892fd3，
名称：“Klem Lloyd Mwenya”，
电子邮件：“克莱姆。lloyd@groupkse.net',
投资日期：（2021-04-15T14:12:09.224）
投资额：500
密码：“$2a$10$NuW5.b8yrfWtN6APKz4AleqXhZUkd3N08V6PC3LgN4V6JDKvHvf9e”，
日期：2021-04-15T14:12:09.224Z，
__v:0
}

您缺少一些需要检查的基本代码。

db

来自哪里？你的收藏名是什么？你的猫鼬模型在哪里？看起来您正试图将MongoDB shell查询直接移植到JS中，这根本不起作用。你读过Mongoose文档了吗？你是对的，我没有为这个动作做模型或模式。我所做的唯一模式是在注册时。只是因为我不知道怎么做。如何编写只将这两个键值对添加到集合中各自文档的代码？

                <form action="/users/submitAmount" method="POST">
                    <div class="form-group">
                        <label for="usersMoney">Enter Your Amount</label>
                        <input type="number" id="usersMoney" name="usersMoney" class="form-control" 
                        placeholder="Enter Your Amount" />
                    </div>
                    <button type="submit" class="btn btn-primary btn-block">
                      Submit
                    </button>
                </form>

TypeError: db.collections.update is not a function
    at C:\Users\KSE0002\Desktop\some-react-apps\deux_with_tm\deux\routes\users.js:122:24
    at Layer.handle [as handle_request] (C:\Users\KSE0002\Desktop\some-react-apps\deux_with_tm\deux\node_modules\express\lib\router\layer.js:95:5)
    at next (C:\Users\KSE0002\Desktop\some-react-apps\deux_with_tm\deux\node_modules\express\lib\router\route.js:137:13)
    at Route.dispatch (C:\Users\KSE0002\Desktop\some-react-apps\deux_with_tm\deux\node_modules\express\lib\router\route.js:112:3)
    at Layer.handle [as handle_request] (C:\Users\KSE0002\Desktop\some-react-apps\deux_with_tm\deux\node_modules\express\lib\router\layer.js:95:5)
    at C:\Users\KSE0002\Desktop\some-react-apps\deux_with_tm\deux\node_modules\express\lib\router\index.js:281:22
    at Function.process_params (C:\Users\KSE0002\Desktop\some-react-apps\deux_with_tm\deux\node_modules\express\lib\router\index.js:335:12)
    at next (C:\Users\KSE0002\Desktop\some-react-apps\deux_with_tm\deux\node_modules\express\lib\router\index.js:275:10)
    at Function.handle (C:\Users\KSE0002\Desktop\some-react-apps\deux_with_tm\deux\node_modules\express\lib\router\index.js:174:3)
    at router (C:\Users\KSE0002\Desktop\some-react-apps\deux_with_tm\deux\node_modules\express\lib\router\index.js:47:12)
    at Layer.handle [as handle_request] (C:\Users\KSE0002\Desktop\some-react-apps\deux_with_tm\deux\node_modules\express\lib\router\layer.js:95:5)
    at trim_prefix (C:\Users\KSE0002\Desktop\some-react-apps\deux_with_tm\deux\node_modules\express\lib\router\index.js:317:13)
    at C:\Users\KSE0002\Desktop\some-react-apps\deux_with_tm\deux\node_modules\express\lib\router\index.js:284:7
    at Function.process_params (C:\Users\KSE0002\Desktop\some-react-apps\deux_with_tm\deux\node_modules\express\lib\router\index.js:335:12)
    at next (C:\Users\KSE0002\Desktop\some-react-apps\deux_with_tm\deux\node_modules\express\lib\router\index.js:275:10)
    at C:\Users\KSE0002\Desktop\some-react-apps\deux_with_tm\deux\node_modules\express\lib\router\index.js:635:15

npm uninstall mongodb --save

npm install mongodb ^2.2.33

if (errors.length > 0) {
    res.render("login", { errors });
  } else {
    // Validation passed.

    const userId = req.user._id;

    User.find({ _id: userId }).then((user) => {
      if (user) {
        console.log(user);
        // This belowe is what is returned in user in my console:
==========================================================================
         {
             _id: 607849 b9d098dd2390892fd3,
             name: 'Klem Lloyd Mwenya',
             email: 'Klem.lloyd@groupkse.net',
             password: '$2a$10$NuW5.b8yrfWtN6APKz4AleqXhZUkd3N08V6PC3LgN4V6JDKvHvf9e',
             date: 2021 - 04 - 15 T14: 12: 09.224 Z,
             __v: 0
         }
==========================================================================
      }
    });
  }

{
             _id: 607849 b9d098dd2390892fd3,
             name: 'Klem Lloyd Mwenya',
             email: 'Klem.lloyd@groupkse.net',
             investDate: <Some date like this> (2021 - 04 - 15 T14: 12: 09.224 Z,)
             investAmount: <Some amount like this> 500
             password: '$2a$10$NuW5.b8yrfWtN6APKz4AleqXhZUkd3N08V6PC3LgN4V6JDKvHvf9e',
             date: 2021 - 04 - 15 T14: 12: 09.224 Z,
             __v: 0
         }