From: Gennady Bystritsky <Gennady.Bystritsky@...>
Date: 2006-01-25T09:49:39+09:00
Subject: Re: How to access a attributes from the parent class?

You must call super in WacSubProfile#initialize to invoke
WacSubscribers#initialize.

Gennady. 

-----Original Message-----
From: Paatsch, Bernd [mailto:BPaatsch@activevoice.com] 
Sent: Tuesday, January 24, 2006 16:45
To: ruby-talk ML
Subject: How to access a attributes from the parent class?

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?

    class WacFrames
      attr_reader :wacFrameNav
      attr_reader :wacFrameDisp	    
      def initialize()
      	@wacFrameNav = "nav"
     	@wacFrameDisp = "disp"
      end
    end

    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

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


Thanks