From: Nicholas Seckar <nseckar@...>
Date: 2005-04-22T01:14:10+09:00
Subject: Re: accessor for Class Variable

On 4/21/05, Leonardo Francalanci <lfrancalanci@simtel.it> wrote:
> I know it's a stupid question, but I can't find the answer...
> 
> Isn't there another way to have an accessor for a class variable than a
> "def"??? Something like "attr_reader"?

Actually, Rails includes a mechanism to allow class attributes. I
believe the usage is

class Whatever
  @@varname = "Default Value"
  cattr_accessor :varname
end

I'm not sure if it is documented anywhere though. You can see some
examples here:
http://dev.rubyonrails.com/file/trunk/actionpack/lib/action_controller/base.rb