From: Stefano Crocco <stefano.crocco@...>
Date: 2008-12-18T16:59:44+09:00
Subject: Re: Define objects from classes in different files

Alle Thursday 18 December 2008, Jason Lillywhite ha scritto:
> Could someone help me with this little problem?
>
> I have a file called fruit2.rb which contains:
>
> class Fruit2
>   def taste
>     "sweet"
>   end
> end
>
> I want to use this class in a different file called fruit1.rb which
> contains:
>
> require "fruit2"
> class Fruit1
>   def color
>     "red"
>   end
> end
>
> apple = Fruit1.new
> p apple.color
> apple = Fruit2.new
> p apple.taste
>
> I know the way I'm creating my apple object is wrong because I
> over-wrote apple when I assigned Fruit2.new. What I want to do is have a
> way to call attributes of a single object from different files. In my
> application, I have so many methods, I want them in different files, but
> want to use them on a single object. Is there an easy way to do this?
> --thank you!

I'm not sure I understand correctly what you mean. In ruby, you can re-open a 
class after it's been defined. This means you can put the taste method in one 
file and the color method in another one, both in the same class:

#in fruit2.rb
class Fruit
  def taste
    "sweet"
  end
end

# in fruit1.rb

class Fruit
  def color
    "red"
  end
end

apple = Fruit.new
puts apple.taste
puts apple.color

I hope this helps

Stefano