From: "Iñaki Baz Castillo" <ibc@...>
Date: 2008-04-30T08:03:25+09:00
Subject: Where and how is defined "attr_accessor"?

Hi, I've done some custom "field_accessor" (similar to "attr_accessor" but 
with some neccessary difference). It works perfectly if I 
defined "field_accessor" in the same class:

	class Header
		def self.field_accessor(name)
			module_eval %{ def #{name}() .... end }
		end
	end

	class From < Header
		field_accessor :user, :domain
	end


But I'd like to have field_accessor definition out of "Header" class, maybe in 
a module but don't get it working. If I do:

	module FieldAccessor
		module_eval %{ def #{name}() .... end }
	end

	class From
		include FieldAccessor
		field_accessor :user, :domain
	end


Then I get:
  NoMethodError: undefined method `field_accessor' for From:Class


Later I've tryed with the following and it seems to work:

	module FieldAccessor
		module_eval %{ def #{name}() .... end }
		# It also works with "class_eval".
	end

	class From
		extend FieldAccessor
		field_accessor :user, :domain
	end



So, while I was writting this mail I found the solution, but would like to 
know if it's the correct way. Thanks a lot.

-- 
Iñaki Baz Castillo