链接2个猫鼬模式 [英] Linking 2 mongoose schemas

问题描述

我有两个模式，一个Team和一个Match.我想使用Team Schema来标识Match Schema中的团队.到目前为止，这是我的Team and Match JS文件.我想将团队架构链接到我的比赛架构，以便我可以简单地识别主队或客队，以便在比赛架构中存储一个实际的团队对象.

I have two Schemas, a Team and a Match. I want to use the Team Schema to identify the Teams in the Match Schema. So far, here is my Team and Match JS files. I want to link the Team Schema to my Match Schema so that I can identify the home or away team simply, and so that I am storing in the Match Schema an actual Team object.

这样，我可以将主队称为例如Match.Teams.home.name = England(当然这只是一个例子)

This way I can refer to the home team for example as Match.Teams.home.name = England (this is just an example of course)

Team.js

'use strict';

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

var validatePresenceOf = function(value){
  return value && value.length; 
};

var getId = function(){
  return new Date().getTime();
};

/**
  * The Team schema. we will use timestamp as the unique key for each team
  */
var Team = new Schema({
  'key' : {
    unique : true,
    type : Number,
    default: getId
  },
  'name' : { type : String,
              validate : [validatePresenceOf, 'Team name is required'],
              index : { unique : true }
            }
});

module.exports = mongoose.model('Team', Team);

这就是我想用Match.js做的事情

And here is what I am trying to do with Match.js

'use strict';

var util = require('util');
var mongoose = require('mongoose');
var Schema = mongoose.Schema;
var TeamSchema = require('mongoose').model('Team');

var validatePresenceOf = function(value){
  return value && value.length; 
};

var toLower = function(string){
  return string.toLowerCase();
};

var getId = function(){
  return new Date().getTime();
};

/**
  * The Match schema. Use timestamp as the unique key for each Match
  */
var Match = new Schema({
  'key' : {
    unique : true,
    type : Number,
    default: getId
  },
  'hometeam' : TeamSchema,
  'awayteam' : TeamSchema
});

module.exports = mongoose.model('Match', Match);

推荐答案

您的解决方案:使用实际的模式，而不是使用该模式的模型:

Your solution: Use the actual schema, rather than a model that uses the schema:

module.exports = mongoose.model('Team', Team);

收件人

module.exports = {
    model: mongoose.model('Team', Team),
    schema: Team
};

然后var definition = require('path/to/js');，然后直接使用definition.schema而不是模型

and then var definition = require('path/to/js'); that, and use definition.schema instead of a model directly

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