如何在数据迁移期间使用 mongoose 设置 updatedAt 时间戳

本文介绍了如何在数据迁移期间使用 mongoose 设置 updatedAt 时间戳的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我正在将数据从 MS SQL 迁移到 MongoDB.我正在使用猫鼬，并在我的架构中将时间戳属性设置为 true.

I am doing a data migration from MS SQL to MongoDB. I am using mongoose and in my schema I set the timestamp property to true.

{ timestamps: true }

然后我尝试设置 createdAt 和 updatedAt 字段的值.插入记录时.createdAt 字段保存正确，但是，updatedAt 字段设置为 createdAt 字段的任何值.

I then try and set the values of the createdAt and updatedAt fields. When inserting a record. The createdAt field saves correctly, however, the updatedAt field is set to whatever the createdAt field is.

这是标准行为还是我做错了什么?

Is this the standard behaviour or am I doing something wrong?

推荐答案

时间戳选项真的很酷，毫无疑问，但我仍然在做老派":

The timestamps option is really cool, without doubt, but i'm still doing it "old school":

'use strict'; /** * Module dependencies */ const mongoose = require('mongoose'); var DataSchema = new mongoose.Schema({ name: { type: String, required: true, lowercase: true }, created: { type: Date, default: Date.now }, updated: { type: Date, default: Date.now } }); DataSchema.pre('save', function(next) { this.updated = Date.now(); return next(); }); mongoose.model('Data', DataSchema);