From: James Coglan <jcoglan@...>
Date: 2009-03-18T23:33:29+09:00
Subject: Re: Derived-class initialization

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2009/3/18 Bryan Richardson <btrichardson@gmail.com>

> Hello all,
>
> I'm having some trouble with extending an existing Ruby class in order
> to add functionality.  Here's some example code:
>
> class Graph
>  ....
>  ....
>  def subgraph(*args)
>    graph = self.new
>    ....
>    ....
>    return graph
>  end
> end



This looks suspect, 'self' in this method looks like it will refer to the
Graph instance, not the Graph class. Try self.class.new instead.

--
James Coglan
http://github.com/jcoglan

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