node.js - 如何在 Mongoose 中为现有模式定义嵌套对象？

Question

假设我有两个 Mongoose 模式:

var AccountSchema = new Schema({ 
       userName: String
     , password: String
})
var AgentSchema = new Schema({
     Name : String
   , Account: AccountSchema
})

是否可以将 AccountSchema 添加到 AgentSchema 而不是集合？

Answer 1

这看起来不太可能。两种解决方案是使用 DocumentId 或 virtuals:

对象编号:

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

var AccountSchema = new Schema({ 
       userName: String
     , password: String
})
var AgentSchema = new Schema({
     name : String
   , account: {type: ObjectId}
})

虚拟:

var AccountSchema = new Schema({ 
       userName: String
     , password: String
})
var AgentSchema = new Schema({
     name : String
   , _accounts: [AccountSchema]
})

AgentSchema.virtual('account') 
   .set(function(account) { this._accounts[0] = account; }) 
   .get(function() { return this._accounts.first(); });