From: Bob Sidebotham <bob@...>
Date: 2004-10-02T04:05:00+09:00
Subject: Re: Can you rewrite this in a better way?

Bob Sidebotham wrote:
> I would like to define a method that can be used to compactly define 
> some items of interest (here called "fields") for subclasses. It's used 
> like this:

Thanks for all the responses. I especially liked:

class A
   def self.fields(*f); @fields||=f; end
   def fields; self.class.fields; end
end

and

class A
   def self.fields(*fields)
     define_method(:fields) { fields }
   end
end

The first solution is very clever, but perhaps a little obfuscated. The 
second is quite direct--I didn't know about define_method. I hope this 
bleeding edge stuff made it into the new pickaxe book.

Thanks again,
Bob