From: gsm.beamon@...
Date: 2006-10-19T07:50:08+09:00
Subject: Partial Resolution?

> 2. It's in the super class ActionController::Base. No. Check the docs.
> Read the gem source. There's no layout() in ActionController::Base.

It's still true: Look at http://api.rubyonrails.com/ and click on the
class. There's NO LAYOUT().

But this comment:
> Read the gem source. There's no layout() in ActionController::Base.
IS POSSIBLY WRONG. I made my original comments based on the 60 or so
.rb files inside
this directory:


/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller

but if I had looked at this file:


/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller.rb

I see something approximating a class definition ... but not exactly:

ActionController::Base.class_eval do
    . . .
  include ActionController::Flash
  include ActionController::Filters
  include ActionController::Layout
    . . .
end

But there's still no: include ActionController::Layout::ClassMethods.

The open nature of Ruby --- the ability to chage module or class
interfaces in many, many files only makes my original question more
important:

HOW DO YOU KNOW, BOTTOM LINE, AFTER ALL THE VARIOUS FILES ARE
CONSIDERED, WHAT A CLASS DOES?

I still don't know how ApplicationController::Base can call layout(). I
still can't understand why it's not in the doc as common sense demands.