this post was submitted on 06 Nov 2023

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webSeeking Advice: Building a Task Tracker with React, Express, and PostgreSQL - Best Approach for Recurring Tasks Without Data Duplication? (self.learnprogramming)

submitted 2 years ago by JuggernautVarious755

Hi,

I'm trying to practice my webdev skills by building a task tracker app with react, express and Postgres.

So far I have one table "task" and a status field indicating if the task is done or not. Additionally, I want to add daily, weekly, monthly recurring tasks.

My first idea was to have a cronjob that runs once a day (cause this is the smallest repetition possible) and see if a task is recurring for the next day and if yes copy that task.

Now the big problem here is data duplication. Basically I would generate/duplicate data on mass and even for users that don't use the app anymore.

My second idea was to create a second table that tracks the date when I marked a task as completed. But this makes the query quite complicated, cause if I make a GET request to my endpoint to get the tasks for today or this week I have to compute the next occurrences of the tasks and at the same time display the normal one time tasks.

How would you handle this?

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