Validation ... callback doesn't get triggered

[eluser]xwero[/eluser]
[quote author="wiredesignz" date="1210862155"]I generally install libraries that contain static methods as helpers ie: functions_helper.php

It's only a personal preference though, Libraries are intantiated when loaded, helpers are not.

Helper classes also have access to the CI super object whereas instantiated libraries do not.[/quote]
Helpers are meant to be a bunch of functions grouped together but that's some creative misuse