Question

我有两个模型和两个路由文件。但是对象内部的一个属性不返回任何东西。

// orders.js route
const mongoose = require('mongoose');

const Order = require('../models/order');

orderRouter.route('/')
.post((req, res, next) => {
  const order = new Order({
    _id: mongoose.Types.ObjectId(),
    quantity: req.body.quantity,
    product: req.body.productId
  });
  order
    .save()
    .then(result => {
      res.status(201).json(result);
    })
    .catch(err => {
      res.status(500).json({
        error: err
      });
    });
});

// order.js Model
const mongoose = require('mongoose');

const orderSchema = mongoose.Schema({
    _id: mongoose.Schema.Types.ObjectId,
    // without required: true working but not returning anything
    product: { type: mongoose.Schema.Types.ObjectId, ref:'Product', required: true},
    quantity:{ type: Number, default:1 }

});

module.exports = mongoose.model('Order', orderSchema);

// product.js model
const mongoose = require('mongoose');


const productSchema = mongoose.Schema({
    _id: mongoose.Schema.Types.ObjectId,    
    name: { type:String, required:true},
    price: { type: Number, required: true}
});


module.exports = mongoose.model('Product', productSchema);

// products.js route


const mongoose = require("mongoose");
const Product = require("../models/product");

productRouter
 .route("/")
  .get((req, res, next) => {
    Product.find()
      // SELECT SPECIFIC FIELDS TO DISPLAY
      .select('name price _id')
      .exec()
      .then(docs => {
        const response = {
          // To display item conts
          count: docs.length,
          // To display array of selected items
          products: docs.map(doc => {
            return {
              name: doc.name,
              price: doc.price,
              _id: doc._id,
              request: {
                type: 'GET',
                url: 'http://localhost:3000/products/' + doc._id
              }
            }
          })
        };
        res.status(200).json(response)
      })
      .catch(err => {
        res.status(500).json({
          error: err
        })
      })
  })
  
  .post((req, res, next) => {
    const product = new Product({
      _id: new mongoose.Types.ObjectId(),
      name: req.body.name,
      price: req.body.price
    });
    product
      .save()
      .then(result => {
        console.log(result);
        res.status(200).json({
          message: "Created Product successfully",
          createdProduct: {
            name: result.name,
            price: result.price,
            _id: result._id,
            request: {
              type: 'GET',
              url: 'http://localhost:3000/products/' + result._id
            }
          }
        });
      })
      .catch(err => {
        console.log(err);
        res.status(500).json({ error: err });
      });
  });

如果我在订单模型中插入required：true，那么我将得到这样的错误。 Path product is required. name": "ValidatorError"。我不知道我在做什么错。未经模型验证。我可以发布并获取ID，数量但产品没有运气。

Answer 1

您的POST看起来如何？

` 开机自检http://localhost:8000/orders 内容类型：application / json

{ “ productId”：“ 5e8b7ab88466300b9c720e68”， “数量”：“ 10” } `

您的POST请求中应该包含“ productId”和“ quantity”。

无法在猫鼬中找到参考模型属性

1 个答案: