Mongoose 所需的验证器失败值未定义

Posted 2023-03-10

【中文标题】Mongoose 所需的验证器失败值未定义

【英文标题】：Mongoose required validator fails value is undefined

【发布时间】：2019-12-15 14:24:46

【问题描述】：

我尝试将数据保存在猫鼬模式中，但所需的验证器失败，错误消息说该值未定义，但之前的日志表明它有一个值。

我尝试使用新的 mongoose.Schema 而不是新的 Schema，但效果不佳。

当我删除所需的标签时，它会保存但它是空的： bookingNumber: _id: 5d4b47d7685936130080eb70, __v: 0

const mongoose = require('mongoose');
const Schema = mongoose.Schema;

const BookingNumberSchema = new Schema(
    number: 
        type: Number,
        required: true,
    ,
    description: 
        type: String,
        required: true,
    ,
);

const BookingNumber = mongoose.model('BookingNumber', BookingNumberSchema);

module.exports = BookingNumber;



function createBookingNumber(req, res) 

    console.log(req.body);
    BookingNumber.create(req.body)
        .then(bookingNumber =>
            let reply = 
                "bookingNumber": bookingNumber
            
            res.status(200);
            console.log(reply);
            res.send(reply);
        )
        .catch(err =>
            res.status(400);
            console.log(err);
            res.send(err);
        );

在我的 app.js 中，我使用 bodyParser.json 并过滤 nosql 攻击：

app.use(bodyParser.json());

app.use(filter());

邮递员数据：

    "bookingNumber":  
        "number": 1,
        "description": "example bookingnumber"
    
 

回复：

    "errors": 
        "description": 
            "message": "Path `description` is required.",
            "name": "ValidatorError",
            "properties": 
                "message": "Path `description` is required.",
                "type": "required",
                "path": "description"
            ,
            "kind": "required",
            "path": "description"
        ,
        "number": 
            "message": "Path `number` is required.",
            "name": "ValidatorError",
            "properties": 
                "message": "Path `number` is required.",
                "type": "required",
                "path": "number"
            ,
            "kind": "required",
            "path": "number"
        
    ,
    "_message": "BookingNumber validation failed",
    "message": "BookingNumber validation failed: description: Path `description` is required., number: Path `number` is required.",
    "name": "ValidationError"

console.log：

 bookingNumber:  number: 1, description: 'example bookingnumber'  
 ValidationError: BookingNumber validation failed: description: Path `description` is required., number: Path `number` is required.
        message: 'Path `description` is required.',
        name: 'ValidatorError',
        properties: [Object],
        kind: 'required',
        path: 'description',
        value: undefined,
        reason: undefined,
        [Symbol(mongoose:validatorError)]: true ,
     number:

我看起来输入值没有传递给猫鼬，但我找不到原因。

【参考方案1】：

在您发送数据的邮递员中：

   "bookingNumber":  
       "number": 1,
       "description": "example bookingnumber"
   
 

并且您的架构 BookingNumber 没有像您发送带有嵌套对象的“bookingNumber”那样的键，mongoose 验证器没有检查“编号”并且没有“描述”，这就是您的请求失败的原因。 只需发送如下：

 
   "number": 1,
   "description": "example bookingnumber"