Question

我有三种不同的模型：产品，商店和用户我要完成的工作是用Shop和User填充getProduct路由。

router.route('/:productId').get(productController.getProduct);

产品型号

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

const productSchema = new Schema({
  name: {
    type: String,
    trim: true,
    required: [true, 'Name is required']
  },
  image: {
    data: Buffer,
    contentType: String
  },
  description: {
    type: String,
    trim: true
  },
  category: {
    type: String
  },
  quantity: {
    type: Number,
    default: 0,
    required: [true, 'Quantity is required']
  },
  price: {
    type: Number,
    required: [true, 'Price is required']
  },
  updated: Date,
  created: {
    type: Date,
    default: Date.now
  },
  shop: { type: mongoose.Schema.ObjectId, ref: 'Shop' },
  owner: [{ type: mongoose.Schema.ObjectId, ref: 'User', required: true }]
});

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

用户模型

const mongoose = require('mongoose');
const Schema = mongoose.Schema;
const validator = require('validator');
const bcrypt = require('bcryptjs');

const userSchema = new Schema({
  name: {
    type: String,
    trim: true,
    required: [true, 'Name is required']
  },
  email: {
    type: String,
    required: [true, 'Please enter a valid email'],
    unique: true,
    lowercase: true,
    validate: [validator.isEmail, 'Please enter a valid email']
  },
  role: {
    type: String,
    default: 'user',
    enum: ['owner', 'seller', 'user', 'admin']
  },
  password: {
    type: String,
    required: [true, 'Please enter a password'],
    minlength: 8,
    select: false
  },
  seller: {
    type: Boolean,
    default: false
  },
  updated: Date,
  active: {
    type: Boolean,
    default: true,
    select: false
  },
  created: {
    type: Date,
    default: Date.now
  }
});

产品负责人

exports.getProduct = (req, res, next) => {
  Product.findById(req.params.productId)
    .populate('shop', 'name _id')
    .populate('owner', 'name _id')
    .exec((err, product) => {
      if (err || !product)
        return res.status('400').json({
          error: 'Product not found'
        });
      res.status(200).json(product);
    });
};

用户控制器

exports.getUser = asyncMiddleware(async (req, res, next) => {
  const user = await User.findById(req.params.userId);

  if (!user) {
    return next(new ErrorResponse('No user found!', 404));
  }

  res.status(200).json({ user });
});

但是，商店填充正常，我无法弄清楚为什么老板不填充。

这是邮递员中的 getProduct 路线

{    
    "image": {...
    },
    "quantity": 6,
    "owner": [],
    "_id": "5e67a428f7927504e87d30de",
    "name": "calculator",
    "description": "a calculator for senior students",
    "category": "school",
    "price": 150,
    "created": "2020-03-10T14:28:56.214Z",
    "shop": {
        "_id": "5e5e0eb64a6a2d0766eda2cb",
        "name": "a basket"
    },
    "__v": 0
}

在猫鼬中使用populate和findById

0 个答案: