From: Eero Saynatkari <ruby-forum-reg@...>
Date: 2006-01-25T11:18:49+09:00
Subject: Re: How to access a attributes from the parent class?

Paatsch, Bernd wrote:
> I am new to ruby and try to figure out how inheritance works.
> I don't get the result I expect. I marked the line of code with 
> "#error".
> What do I need to do to get it to work?
> 
> <skip WacFrames />
> 
>     class WacSubscribers
>       attr_reader :fr
>       attr_reader :frame
>       def initialize()
>  	@fr = WacFrames.new()
> 	@frame = @fr.wacFrameNav
>       end
>     end
> 
>     class WacSubProfile < WacSubscribers
>       def initialize()
> 	#some code
>       end
>       end
>     end

An extra 'end' there but I assume it is just a copy-paste error.

>     another = WacSubscribers.new()
>     puts another.fr	#works fine
>     puts another.frame	#works fine
> 
>     test = WacSubProfile.new()
>     puts test.fr		#error
>     puts test.frame	#error

This should work fine (you might have problems if you
do not initialize the parent's instance variables by
calling #super but even still the methods should return
nils).

What error is it that you get?

> Thanks


E

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