1

在用户创建新文档后，我想将文档 _id 保存到另一个模式的数组中。简而言之：用户保存了一个视频 URL，我想将视频的文档 _id 保存到用户架构中的一个数组中。我无法弄清楚如何做到这一点。这是我的模型文件：

视频.js：

// Video Model
// -------------

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

// Embedded document schema
var NotesSchema = new Schema({
    timecode  : String,
    text      : String
});

// Main schema
var VideoSchema = new Schema({
    title   : String,
    url_id  : String,
    notes   : [NotesSchema]
});

module.exports = mongoose.model('Note', NotesSchema);
module.exports = mongoose.model('Video', VideoSchema);

帐户.js：

// Account Model
// -------------

var mongoose = require('mongoose');
var Schema = mongoose.Schema;
var Video = require('../models/videos.js');
var passportLocalMongoose = require('../node_modules/passport-local-mongoose/lib/passport-local-mongoose.js');

var AccountSchema = new Schema({
    username: String,
    salt: { type: String, required: true },
    hash: { type: String, required: true },
    videos: [VideoSchema]  // <- need to save here
});

AccountSchema.plugin(passportLocalMongoose);

module.exports = mongoose.model('Account', AccountSchema);

这是我目前如何设置代码来创建文档并保存到 MongoDB。

var video = new Video({
    title   : req.body.title,
    url_id  : req.body.url_id
});

video.save(function(err) {
    if (err) {
        console.log(err);
    } else {
        res.redirect('videos/' + video._id);
        console.log('video saved.');
        console.log('video information: ' + video);
    }
});

基本上我不明白如何保存到视频，只将视频文档 _id 发送到帐户架构中的数组。我该怎么做呢？

编辑：

尽管实施了建议的修复程序，data._id但并未保存到 Account 架构内的数组中。没有错误被抛出。当我使用 mongo CLI 检查帐户时，数组为空。

以下是我目前的更改：

视频.js

// Video Model
// -------------

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

var NotesSchema = new Schema({
  timecode  : String,
  text      : String
});

var VideoSchema = new Schema({
  title   : String,
  url_id  : String,
  notes   : [NotesSchema]
});

module.exports = mongoose.model('Note', NotesSchema);
module.exports = mongoose.model('Video', VideoSchema);

account.js

// Account Model
// -------------

var mongoose = require('mongoose');
var Schema = mongoose.Schema;
var Video = require('../models/videos');
var passportLocalMongoose = require('../node_modules/passport-local-mongoose/lib/passport-local-mongoose.js');

var AccountSchema = new Schema({
    nickname: String,
    birthday: Date,
    videos: [{ type: Schema.Types.ObjectId, ref: 'Video' }]
});

AccountSchema.plugin(passportLocalMongoose);

module.exports = mongoose.model('Account', AccountSchema);

视频路由.js

var util = require('util');
var mongoose = require('mongoose');
var Video = require('../models/videos');
var Account = require('../models/account');

var video = new Video({
  title   : req.body.title,
  url_id  : goodVimeoId
});

video.save(function(err, data) {
  if (err) {
    console.log(err);
  } else {
    Account.findOne({username : req.user.username}, function(err, result) {
      result.videos.push(video._id);
      res.redirect('videos/' + video._id);
    });

  }
});

关于为什么视频数据没有保存到帐户的任何建议？再次感谢。

4

2 回答 2

1

刚刚注意到关于 ObjectId 的评论。已根据需要更新了答案：

  var ObjectId = Schema.ObjectId;

  var AccountSchema = new Schema({
        username: String,
        salt: { type: String, required: true },
        hash: { type: String, required: true },
        videos: [{type: ObjectId, ref: 'Video'}]  // <- need to save here
  });
 ....
 ....

  video.save(function(err, data)    {
     Account.findOne({username:req.body.username}, function(err, result)    {
         result.videos.push(data._id);
     });
  });
于 2013-03-12T03:21:34.950 回答
0

问题解决了：

我需要在result.save();之后添加result.videos.push(video._id);，如下所示：

    Account.findOne({username : req.user.username}, function(err, result) {
      result.videos.push(video._id);
      result.save();
      res.redirect('videos/' + video._id);
    });
于 2013-03-16T20:11:10.827 回答