node.js – 从Mongoose 3.x升级到Mongoose 4.x时,如何在模式中使用模式？

根据mongoose .add documentation for 4.5.2,添加语法仍然相同.所以我用你的模式制作了一个简单的tesTing.js文件.我创建了一个keyFeature对象,其中一个对象在description数组中并保存.之后,我使用mongo控制台连接到mongod并查询keyfeatures集合.该对象已正确插入db.

这是我的代码

var mongoose = require('mongoose');
var DescriptionscheR_448_11845@a = require('./description.js');
var KeyFeaturescheR_448_11845@a = require('./keyFeature.js');

mongoose.connect('mongodb://localhost/mongoose-tesTing',function(err)    {
    if(err){
        console.log('Could not connect to mongoose',err);
    }else{
        console.log('successfully connected to mongoose');
        mongoose.model('Description',DescriptionscheR_448_11845@a);
        mongoose.model('Keyfeature',KeyFeaturescheR_448_11845@a);
        var Keyfeature = mongoose.model('Keyfeature');

        new Keyfeature({
            descriptions: [{
                display: 'This is the display content from descriptions',subdescriptions: ['Subdescription 1']
            }],title: 'tittle',key: 'key',display: 'display'
        }).save(function(err){
            if(err){
                console.log('Error when saving',err);
            }else{
                console.log('Saved');
            }
        });
    }
});

用mongoose@4.5.2测试