From: James French <James.French@...>
Date: 2009-10-02T23:54:20+09:00
Subject: operating on a selection of objects

Hi,

I want to be able to do operations to a selection of objects, something like this:

class Config
  attr_accessor :name
end

class ConfigSelection

  def initialize(*configs)
    @configs = configs
  end

  def name=(n)
    @configs.each{|c| c.name = n}
  end
  
end

a = Config.new
a.name = "a"

b = Config.new
b.name = "b"

s = ConfigSelection.new(a, b)
s.name = "s"


I was wondering if there might be a more elegant way of doing this, without having to explicitly duplicate all of Config's attributes in ConfigSelection?

Cheers,
James