如何使用猫鼬生成 ObjectId? [英] How can I generate an ObjectId with mongoose?

问题描述

我想用 Mongoose 生成一个 MongoDB ObjectId.有没有办法从 Mongoose 访问 ObjectId 构造函数?

I'd like to generate a MongoDB ObjectId with Mongoose. Is there a way to access the ObjectId constructor from Mongoose?

• 这个问题是关于从头开始生成一个新的 ObjectId.生成的 ID 是一个全新的通用唯一 ID.

• This question is about generating a new ObjectId from scratch. The generated ID is a brand new universally unique ID.

另一个问题是关于从现有字符串表示创建ObjectId.在这种情况下，您已经有一个 ID 的字符串表示形式——它可能是也可能不是普遍唯一的——并且您正在将它解析为一个 ObjectId.

Another question asks about creating an ObjectId from an existing string representation. In this case, you already have a string representation of an ID—it may or may not be universally unique—and you are parsing it into an ObjectId.

推荐答案

您可以在 require('mongoose').Types 上找到 ObjectId 构造函数.下面是一个例子:

You can find the ObjectId constructor on require('mongoose').Types. Here is an example:

var mongoose = require('mongoose');
var id = mongoose.Types.ObjectId();

id 是新生成的ObjectId.

注意:作为 Joshua Sherman 指出，对于 Mongoose 6，您必须在调用前加上 new:

Note: As Joshua Sherman points out, with Mongoose 6 you must prefix the call with new:

var id = new mongoose.Types.ObjectId();

---

您可以在 Mongoose#Types 文档中阅读有关 Types 对象的更多信息.

---

You can read more about the Types object at Mongoose#Types documentation.

这篇关于如何使用猫鼬生成 ObjectId?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！