From: Rob Biedenharn <Rob@...>
Date: 2009-02-05T03:52:38+09:00
Subject: Re: Making object methods available externally

On Feb 4, 2009, at 1:37 PM, David Stanford wrote:

> Hi all,
>
> I'm having trouble figuring out a way of creating a method within a
> class that's available not only to the other object methods (object
> instances), but also externally, as if I were to use 'self.method'.
> Below is an (admittedly, lame) example of what I'm referring to:
>
> #############################
>
> class CheesePhrase
>  def initialize(phrase)
>    @phrase = phrase
>    say_it
>  end
>
>  def say_it(phrase=@phrase)
>    puts "#{phrase}"
>  end
> end
>
> #############################
> <snip/>
> Thanks in advance!
>
> -David

class CheesePhrase
   def initialize(phrase)
     @phrase = phrase
     say_it
   end

   def self.say_it(phrase)
     puts phrase
   end
   def say_it
     self.class.say_it(@phrase)
   end
end

irb> some_cheese_phrase = CheesePhrase.new("I like cheese.")
I like cheese.
=> #<CheesePhrase:0x629d0 @phrase="I like cheese.">
irb> some_cheese_phrase.say_it
I like cheese.
=> nil
irb> CheesePhrase.say_it("I like cheese, too.")
I like cheese, too.
=> nil

-Rob

Rob Biedenharn		http://agileconsultingllc.com
Rob@AgileConsultingLLC.com