From: "David A. Black" <dblack@...>
Date: 2008-10-03T04:07:30+09:00
Subject: Re: Problem extending (adding methods) to class

Hi --

On Fri, 3 Oct 2008, Nit Khair wrote:

> David A. Black wrote:
>> Hi --
>>
>> On Fri, 3 Oct 2008, Nit Khair wrote:
>>
>>>> Similarly if you want to subclass ClassC, you can do it inside ModuleM
>>>> or outside:
>>> class AForm < Ncurses::FORM
>> I don't think it was exactly this, because there is no Ncurses::FORM.
>> Try the code in my previous post and see if it works for you. If not,
>> please post some actual code that triggers the error you're talking
>> about. I can't duplicate it.
>>
>>
>> David
>
> Maybe we are onto something. Your code works fine. But doesn't FORM.new
> require a fields object ?  I tried many variations so i cant remember
> what it was but here is the last one I have before i rewrote.
>
>
> include Ncurses
> include Ncurses::Form
>
> class RBForm < FORM
>  attr_accessor :ffields
>  def initialize(fields)
>    super(fields)
>    @ffields = fields
>  end
>  def set_ffields(fields)
>    @ffields = fields
>  end
>  def get_ffields
>    @ffields
>  end
> end
>
>
> get_ffields throws a NoMethodError.
> If i access ffields, that too gives an error.
>
> It is instantiated thus:
>    f=RBQueryForm.new(fields);
>
> RBQueryForm is subclassed from RBForm.
>
> See if you can spot the error here itself. Otherwise I will try to cut
> and make a tiny version that you can run and see.

*Please* post some real code that contains the error. Otherwise it
just goes back and forth.

This code runs. I've changed super(fields) to super() because with an
argument I got an error (it expected zero arguments). I don't know
exactly what the fields are supposed to consist of so I've used a
placeholder ("abc").

require 'rubygems'
require 'ncurses'
include Ncurses
include Ncurses::Form

class RBForm < FORM
   attr_accessor :ffields
   def initialize(fields)
     super()
     @ffields = fields
   end
   def set_ffields(fields)
     @ffields = fields
   end
   def get_ffields
     @ffields
   end
end

RBForm.new("abc").set_ffields("abc")


David

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