Mongo模型可以自我参考

Question

我有这样的模型:

var userSchema = new mongoose.Schema({
  _id: { type: Schema.ObjectId },
  email: { type: String, unique: true },
  ipAddress: { type: String },
  referals: [{
    type: mongoose.Schema.Types.ObjectId, ref: 'User'
  }],
  redeem_token: {type: String, unique: true}
});

var User = mongoose.model('User', userSchema);

这可以吗？用户需要具有对其他用户的引用.这是跟踪注册推荐.我想然后使用.Populate并扩展referals []中的用户

Answer 1

我正在使用猫鼬.这对我有用,我只是this用作模型的参考.我有一个Comment模特.评论也可以回复Comment.

    var Comment = new mongoose.Schema({
      id: { type: ObjectId, required: true },
      comment:    { type: String },
      replies:    [ this ],
    });

Answer 2

I know this question is old. But I stumbled upon this as I was looking for a solution to a similar problem. So, this is for future knowledge seekers!

Ankur's answer will help if you want the referals created inside the user document. Ex:

{
  _id: 'XXX',
  ...
  referals: [{_id:'yyy',email: ''}]
}

我认为使用Mongoose Virtuals将有助于更好地扩展应用程序。使用虚拟记录，您不必创建重复的记录。

因此，如果您决定使用 Mongoose Virtuals，您的架构将如下所示

{
  _id: 'XXX',
  ...
  referals: [{_id:'yyy',email: ''}]
}

希望这可以帮助。如果我错了，请纠正我，因为我是新手。