From: "Eric I." <rubytraining@...>
Date: 2008-07-16T13:11:15+09:00
Subject: Re: Is there a way to call include for an object instance?

Hi Chris,

> I need to be able to create an object and, based on the param that I
> pass in on the class create_for_sport method, create an object with the
> proper module included.

You can call extend on an instance to mix in a modules instance
methods to the instance (and leaving the class itself alone).  In your
code, we also need to convert your string to a reference to the module
as well, via a call to const_get.  And this would be your new sport=
method:

  def sport=(sport)
    extend(self.class.const_get(sport.capitalize + "Stats"))
  end

I believe that will work for you.

Eric

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