如何在猫鼬中设置子文档的过期时间 [英] How to set a expires for a subdocument in mongoose

问题描述

这是我的计划:

var authUserScheme = mongoose.Schema({
    token: String,
    ip: String,
    valid: {type: Date, default: Date.now(), expires: '1m' },   
}, {_id: false});

var usersSchema = mongoose.Schema({
// OTHER THINGS
     auth : [ authUserScheme ],
// other things
});

当我设置身份验证"路径时，mongodb会删除整个文档，但是我只想在到期日期之前删除身份验证行...可能吗?

When i set an 'auth' path, mongodb deletes the entire document, but i want to delete only the auth row when expire date... It is possible?

对不起，我的英语我会说西班牙语.

Sorry for my english, i speak spanish.

推荐答案

到期后，您将无法使用TTL索引删除文档的一部分.

You can't use a TTL index to delete a portion of a document on expiry.

但是，您的authUserScheme看起来实际上是一个会话概念，而不是嵌入式文档.

However, it looks like your authUserScheme is really more of a session concept than an embedded document.

更好的方法是使用从authUserScheme到相关用户的引用 ，例如:

A better approach would be to use a reference from the authUserScheme to the related user, eg:

var authUserSchema = mongoose.Schema({
    token: String,
    ip: String,
    valid: {type: Date, default: Date.now(), expires: '1m' },
    user: { type: Number, ref: 'User' }
});

var userSchema = mongoose.Schema({
    name: String,
    // Other fields
})

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

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