From: Jason Lillywhite <jason.lillywhite@...>
Date: 2011-10-20T14:38:07+09:00
Subject: Call method on attribute update

Hello,

I have an attribute in my class called @yn. If I change the value of @yn
by doing this:

foo.yn = 100.0

How do I cause another method in the class to automatically run? This is
what I want to do:

If @yn is updated, automatically run method "foo.calcArea". The way I
have it now requires me to do:

foo.yn = 100.0
foo.calcArea

There must be a way to let ruby call that method for me.

Thank you!

-- 
Posted via http://www.ruby-forum.com/.