From: barjunk <barjunk@...>
Date: 2007-04-26T13:10:16+09:00
Subject: More concise code

I found this snippet in code called acts_as_authenticated.  I thought
it interesting but hard to understand at first.

 @current_user ||= (session[:user] && User.find_by_id(session[:user]))
|| :false

Now for some possible embarrassment.

@current_user should return a value unless it is nil.

If nil(false),
then @current_user is set to session[:user] if session[:user] &&
User.find_by_id return true

otherwise, @current_user becomes false

Am I even close?

Mike B.