mongoose.js 3:如何判断嵌套不是文档 [英] mongoose.js 3: how to tell that nested is not a document

问题描述

我的猫鼬模式:

mongoose.Schema({
        title: 'string',
        items: [{
            uid: 'string',
            type: {type: 'string'},
            title: 'string',
            items: [{uid: 'string', type: {type: 'string'}, text: 'string'}]
        }]
    });

如何告诉猫鼬项目(和项目项目)不是文档，而是嵌套的对象?我既不需要_id属性，也不需要任何文档的功能，但是我想定义它们并使用架构进行限制.

How to tell mongoose that items (and items of items) are not documents, but just nested objects? I need neither the _id property nor any document's functionality for them, but I want to define them and restrict with schema.

_id: false是否足够?

推荐答案

没有它们自己的架构的嵌入式文档数组(如上所示)将始终具有_id字段.如果要禁止显示_id，则它们必须具有自己的架构，并且需要设置{ _id: false }

Embedded document arrays without their own schema (like you show above) will always have an _id field. If you want to suppress the _id they have to have their own schema and you need to set the { _id: false } option on their schema definition.

mongoose.Schema({
    title: 'string',
    items: [mongoose.Schema({
        uid: 'string',
        type: {type: 'string'},
        title: 'string',
        items: [mongoose.Schema({
            uid: 'string', 
            type: {type: 'string'}, 
            text: 'string'
        }, {_id: false})]
    }, {_id: false})]
});

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