Mongoose ValidationError：验证失败：需要路径答案

【问题标题】：Mongoose ValidationError: validation failed: Path is requiredMongoose ValidationError：验证失败：需要路径
【发布时间】：2020-08-20 19:55:56
【问题描述】：

当我在我的 Web 应用程序的 ejs 表单中输入与我的 mongoDB 架构有关的信息时出现错误：

我得到的错误：

ValidationError: Subscriber validation failed: grade1: Path `grade1` is required., grade2: Path `grade2` is required., grade3: Path `grade3` is required., grade4: Path `grade4` is required.

我的订阅者架构：

const mongoose = require("mongoose");
const subscriberSchema = new mongoose.Schema({
  name: {
    type: String,
    required: true
  },
  grade1: {
    type: String,
    required: true
  },
  grade2: {
    type: String,
    required: true
  },
  grade3: {
    type: String,
    required: true
  },
  grade4: {
    type: String,
    required: true
  }
});

subscriberSchema.methods.getInfo = function() {
  return `Name: ${this.name} grade1: ${this.grade1} grade2: ${this.grade2} grade3: ${this.grade3} grade4: ${this.grade4}`;
};

subscriberSchema.methods.findLocalSubscribers = function() {
  return this.model("Subscriber")
    .find({
      name: this.name
    })
    .exec();
};

ejs 形式：

<div class="col-sm-6">
  <h1>Enter Student Name and Grades</h1>
  <p>Enter the student's name and grades for the first 4 CSC courses:</p>
  <form class="subscription-form" action="/subscribers/create" method="post">
    <input type="text" name="name" placeholder="Name" autofocus>
    <input type="text" grade1="grade1" placeholder="CSC141 Grade" required>
    <input type="text" grade2="grade2" placeholder="CSC142 Grade" required>
    <input type="text" grade3="grade3" placeholder="CSC240 Grade" required>
    <input type="text" grade4="grade4" placeholder="CSC241 Grade" required>
    <input type="submit" name="submit">
  </form>
</div>

订阅者/在订阅者控制器中创建：

  create: (req, res, next) => {
    let subscriberParams = {
      name: req.body.name,
      grade1: req.body.grade1,
      grade2: req.body.grade2,
      grade3: req.body.grade3,
      grade4: req.body.grade4
    };
    Subscriber.create(subscriberParams)
      .then(subscriber => {
        res.locals.redirect = "/subscribers";
        res.locals.subscriber = subscriber;
        next();
      })
      .catch(error => {
        console.log(`Error saving subscriber: ${error.message}`);
        next(error);
      });
  },
...

我是 mongoDB/nodejs/ejs 的新手，所以我想知道我做错了什么。

【问题讨论】：

标签： javascript node.js mongodb mongoose ejs

【解决方案1】：

它适用于name，因为您使用的是 HTML 表单 name 属性，请尝试：

<input type="text" name="grade1" placeholder="CSC141 Grade" required>
<input type="text" name="grade2" placeholder="CSC142 Grade" required>
<input type="text" name="grade3" placeholder="CSC240 Grade" required>
<input type="text" name="grade4" placeholder="CSC241 Grade" required>

【讨论】：