Change variable value in document after some time passes?

Question

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 e

Answer 1

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

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

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'));
  }
});

2. 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

This is a good cron package cron

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

Good luck