From: Stefano Crocco <stefano.crocco@...>
Date: 2008-06-02T16:35:22+09:00
Subject: Re: Accessors: Problem in accessing an attribute of other class

On Monday 02 June 2008, Anukul Singhal wrote:
> Hi,
>
> I was practising accessors in ruby and came across the following
> problem:
>
> class Music
>
>    attr_accessor :song, :artist
>    def initialize
>      @song = "This never happened before"
>      @artist = "Paul McCartney"
>    end
> end
>
> class Sport < Music
>
>    attr_reader :player
>    attr_accessor :game, :gender
>    def initialize(player)
>      @player = player
>      @game = {:game1 => 'Tennis', :game2 => 'Cricket', :game3 => 'F1'}
>      @gender = {:g1 => 'male, :g2 => 'female'}
>    end
> end
>
> sp = Sport.new('Roger Federer')
> puts sp.player  => outputs to "Roger Federer"
> puts sp.game[:game1] => outputs to "Tennis"
> puts sp.gender[:g1] => outputs to "male"
> puts sp.song => outputs to "Nil" => I want to access the song attribute
> of Music class so that it shows me the output as "This never happened
> before"
>
> Can anyone help so that I can access the attributes of other class?
>
> Thanks,
> Anukul

You forgot to call super from Sport#initialize.

Stefano