Question

我有这样的模特和系列。

user.js的

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

const UserSchema = new Schema({
  name: String,
  email: String, //convert to contacts with type Object
  username: String,
  password: String,
  createdAt: {
    type: Date,
    default: Date.now
  },
  updatedAt: {
    type: Date,
    default: Date.now
  }
});

const User = mongoose.model('user', UserSchema);

module.exports = User;

服务器集合

{ 
"_id" : ObjectId("591d3736e562d87e5f7a4435"), 
"name" : "test.snapzio.com", 
"description" : "test", 
"hostname" : "hostname", 
"ipaddress" : "192.168.1.1", 
"status" : "good", 
"updatedAt" : ISODate("2017-05-18T05:55:02.920+0000"), 
"createdAt" : ISODate("2017-05-18T05:55:02.920+0000"), 
"users" : [
    {
        "id" : "591d2fc1f484ce774c1ca58d", 
    }, 
    {
        "id" : "591d2fc1f484ce774c1ca58d", 
    }, 
    {
        "id" : "591d2fdbf484ce774c1ca58e", 
    }
], 
"projects" : [
    ObjectId("591d3079f484ce774c1ca590")
], 
"__v" : NumberInt(0)

}

我希望获得与服务器文档中的记录匹配的用户然后呈现。这就是我所做的

router.get('/add_project/:id', ensureAuthenticated, (req, res, next) => {
  Server.findById(req.params.id, (err, server) => {
     User.find({ _id: server.users.id }, (err, users) => {
        console.log(users);//undefined

     });
 });

}）;

我希望获得与服务器文档中的记录匹配的所有用户。请考虑不要更改架构。

Answer 1

这应该有效：

router.get('/add_project/:id', ensureAuthenticated, (req, res, next) => {
  Server.findById(req.params.id, (err, server) => {
      let server_users = server.users.map(e => e.id);
      User.find({ { _id : { $in : server_users } } }, (err, users) => {
          console.log(users);
     });
 });

如何从另一个模型中找到子文档

1 个答案: