经过一段时间后，在文档中更改变量值？ [英] Change variable value in document after some time passes?

问题描述

我对网络开发很陌生，我想学习新东西。我有一个mongoose架构（我不会发布它，因为它是用我自己的语言，你不会理解，所以我会解释）。
所以我有类似名称，代码，用户创建条目的内容等等（与我的问题无关）。
我有一个变量，比方说，像这样的日期：类型：日期，默认：Date.now 。还有一个，已停用：{type：Boolean，默认值：false} 。
我希望，对于每个条目，在4周后将停用的变量传递给true。

I'm quite new to web development and I want to learn new things. I have a mongoose schema (I won't post it because it's in my own language, you won't understand, so I will explain). So I have things like name, a code, what user created the entry, etc. (irrelevant for my problem). I have one variable, let's say, Date like this: type:Date, default: Date.now. There is another one, deactivated: {type: Boolean, default: false}. I want, for each entry, after 4 weeks pass the deactivated variable to change to true.

我不知道该怎么做。我没有尝试任何东西，我在谷歌搜索但我找不到任何东西。

I have no idea how to do that. I didn't try anything and I searched on Google but I couldn't find anything.

我希望你能给我这个想法，让我明白我是怎么做的应该这样做，然后我会尝试自己构建它。

I'd like you to give me the idea and make me understand how I should do it, and then I will try to build it myself.

推荐答案

你所要求的基本上不能像你有两种方法去做这条路线。

What you are asking basically can't be done just like that you have 2 ways about going this route.

1. 每次有条目检索时，你都可以运行一个mongoose钩子，例如 pre（'find'）将检查4周是否已经过去，如果是这样，然后将停用的更改为 true 您可以在这里

1. Everytime there is an entry retrieval you can run a mongoose hook such as pre('find') that will check if 4 weeks have passed if so then change the deactivated to true you can learn more about hooks on here

类似于此示例 - 此示例取自此处

Something similar to this example - this example was taken from here

Schema.pre('find', function() {
  if (!this.getQuery().userId) {
    this.error(new Error('Not allowed to query without setting userId'));
  }
});

1. 你可以每天运行一次cron作业或者两次（取决于你的时间段）继续检查通过创建4周的记录并将停用设置为 true

1. You can run a cron job every day once or twice (depends on your time period) that keeps checking for records which passed 4 weeks of creation and set deactivated to true

这是一个很好的cron包 cron

This is a good cron package cron

编辑：cron作业可以是任何时段，每10分钟，1小时，2,100等。 。

The cron job can be any period, every 10 minutes, 1 hour, 2, 100, etc...

祝你好运

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