猫鼬关系不能双向工作

Question

我无法在我的应用程序（使用 yeoman angular-fullstack 生成器构建）中的 Rides 和 Comments 控制器之间建立关系运行。

评论模型：

var mongoose = require('mongoose'),
    Schema = mongoose.Schema;

var CommentSchema = new Schema({
  name: String,
  comment: String,
  active: Boolean,
  ride: { type: mongoose.Schema.Types.ObjectId, ref: 'Ride' }
});

module.exports = mongoose.model('Comment', CommentSchema);

乘坐车型：

var mongoose = require('mongoose'),
    Schema = mongoose.Schema;

var RideSchema = new Schema({
  name: String,
  distance: String,
  climb: String,
  rating: String,
  active: Boolean,
  comments: [{ type: mongoose.Schema.Types.ObjectId, ref: 'Comment' }]
});

module.exports = mongoose.model('Ride', RideSchema);

访问 /api/comments/ 给我一个正确的结果，其中包含相关的行程：

{"_id":"54ce818f8c2889da58b01e19","name":"NAAM","comment":"COMMENT","ride":"54ce69647a78532057aa98e0","__v":0}]

访问 /api/rides/ 得到以下结果，没有相应的评论：

[{"_id":"54ce69647a78532057aa98e0","name":"Ride test ingevuld","distance":"4000","climb":"1200","rating":"1","__v":0,"comments":[]}]

谁能告诉我我做错了什么？

Answer 1

据我所知，它不是那样工作的。你的评论得到了它的旅程，你的旅程得到了它的评论。我认为，您应该删除

ride: { type: mongoose.Schema.Types.ObjectId, ref: 'Ride' }

并在乘车集合中发表评论。

comments: ['Comment']

它更多的是 objective 解决方案，因为它应该在为 objective（分层）数据设计的 MONGO 数据库中。

Answer 2

来自我的一个项目的示例：

exports.insertRoom = function(req, res) {
var id =  req.body.id;

var r =  req.body.room;
var room = new Room({name: r.name});

Floor.update(
    {_id : id},
    {
        $push: { rooms: room}
    },
    {upsert:true},
    function(floor, err)
    {
            res.sendStatus(200);
    }
);

};

猫鼬关系不能双向工作

Mongoose relation not working both ways

express

mongoose

mean-stack