Add custom functions Gesior website

[CastorFlynn]

I have created a table in my database and I would like to create functions to make it easier for the website to read and write the data in this table.

I created a copy of one of those pages of functions inside the Classes folder and followed the same example, but the functions don't work.
Is it necessary to do something for the new functions to work?

 

[Rombadr]

Posting an example of your implementation would make it easier for us to help you