How to create funtionality to add and subtract days within a module?

[Secret_Agent_99]

Hi,

I am in the process to create an Attendance Mangement Module for my company's HRIS system.
So how would you automatically increment the year-to-date total, and subtract days depending on how many days taken off. I know I don't think its possible within the studio, so how would you begin creating custom code within the file where you can apply custom code to? I am confused how to embedd math functionality in this open-source software.

Thanks

[JVWay]

Well, it will take some effort but look into the developers manual and there are plenty of posts with examples by myself and others. You're looking at implementing what are called Logic Hooks and their associated code files. What you're needing will take php code and I'd suggest looking into mysql date_add and date_sub functions.

[Secret_Agent_99]

Thanks Jerry,

I will look into logic hooks and implement the add and subtract feature of the fields.
I saw some post of logic host and implemented them and it worked.