From: "David A. Black" <dblack@...>
Date: 2005-08-26T22:15:38+09:00
Subject: Re: Circular dependecy on classes

Hi --

On Fri, 26 Aug 2005, Anatol Pomozov wrote:

> Thanks for your quick answers.
>
> Somewhere (i did not remember) I saw following trick
>
> def Soldier
>  @can_upgrade_to = [:Knight] #This list != list of all ancestors
>
>  def upgrade?(to)
>     @can_upgrade_to.include?(to.to_s.to_sym)
>  end
> end
>
> but the solution provided by Derek seems more natural for me.

And it has the advantage of working :-)  What you've got above (even
given that you mean class rather than def) does not work.  (See my
earlier post.)


David

-- 
David A. Black
dblack@wobblini.net