Question

在我的nodejs应用程序中，我无法在单个mongoose的find方法中获取多个集合数据。使用的收藏品是“房间”和“房间用户”，他们的模型如下

房间收集模型

var mongoose    = require("mongoose");


// Room Schema
var roomSchema = mongoose.Schema({
                    name : {
                                type : String
                    },
                    slug : {
                                type : String
                    },
                    user :{type: mongoose.Schema.Types.ObjectId, ref: 'user' },
                    date : {
                                type : Date
                    }

});


// This variable can be accessed from outside
var Room = module.exports = mongoose.model(
                                            'Room',//Singular Name of database
                                            roomSchema
                                          );



//Data on database

[{
    "_id": "5876304d23cd8e2044d5c771",
    "name": "Room 1",
    "user": "586f2efa79a7bb1498f5abf9",
    "slug": "Room-1",
    "date": "2017-01-11T13:17:01.087Z",
    "__v": 0
}]

roomusers集合模型

var mongoose    = require("mongoose");


// RoomUser Schema
var roomUserSchema = mongoose.Schema({
                    room : {type : mongoose.Schema.Types.ObjectId, ref: 'room' },
                    user : {type : mongoose.Schema.Types.ObjectId, ref: 'user' },
                    date : {type : Date}

});



// This variable can be accessed from outside
var RoomUser = module.exports = mongoose.model(
                                            'RoomUser',//Singular Name of database
                                            roomUserSchema
                                          );

//Data on collection
[{
    "_id": "5876304d23cd8e2044d5c772",
    "room": "5876304d23cd8e2044d5c771",
    "user": "586e39600e83670e1cd52246",
    "date": "2017-01-11T13:17:01.186Z",
    "__v": 0
}, {
    "_id": "5876304d23cd8e2044d5c773",
    "room": "5876304d23cd8e2044d5c771",
    "user": "586e3eba36ee4722c062286b",
    "date": "2017-01-11T13:17:01.190Z",
    "__v": 0
}, {
    "_id": "5876304d23cd8e2044d5c774",
    "room": "5876304d23cd8e2044d5c771",
    "user": "586f2efa79a7bb1498f5abf9",
    "date": "2017-01-11T13:17:01.191Z",
    "__v": 0
}, {
    "_id": "5876304d23cd8e2044d5c775",
    "room": "5876304d23cd8e2044d5c771",
    "user": "5875f82519c5251d9c8318d1",
    "date": "2017-01-11T13:17:01.193Z",
    "__v": 0
}]

当我尝试获取房间数据时，它没有填充房间用户数据，我发现如下

Room.find({})
.populate('RoomUser') // I tried "roomusers" and "roomuser" still not working
.exec(callback);
#result is as follows
[{
"_id": "5876304d23cd8e2044d5c771",
"name": "Room 1",
"user": "586f2efa79a7bb1498f5abf9",
"slug": "Room-1",
"date": "2017-01-11T13:17:01.087Z",
"__v": 0
}]

我需要的是从房间查找方法获取相关的房间用户数据。我是否需要任何其他模块来填充相关表格？如果是这样的话？

Mongooose在find方法上填充相关集合数据不起作用

0 个答案: