Mediator function for process all value before printed

[hajivandian]

Hi
How can write mediator function for proccess all value before printed ?
for example : i want write a function in once place for change all "1" to "2",
i know that we can do this for each field separately, but i want do this once

[HighAley]

Hello.

Sorry, maybe we we don't understand your question.
Could you describe your issue more detailed with samples?

Thank you.