From: Vincent Fourmond <vincent.fourmond@9online.fr>
Date: 2006-12-19T06:23:08+09:00
Subject: Simple copy of attributes


  Hello !

  I've just stumbled upon code where you have different classes with no
relations, and that you want to copy some attributes from one to the
other. So I came up with this:

def copy_attributes(dest, src, *attrs)
  for attr in attrs
    dest.send(attr.to_s + '=',src.send(attr))
  end
end

  Then, if you want, say, to copy the attributes foo, bar and baz (to
reach summits in originality) from biniou to bidule you just need:

copy_attributes(bidule, biniou, :foo, :bar, :baz)

  Is there already a function from standard libs doing something similar ?

  I know that some of you will answer that coming to such a need means I
should probably refactor my code. Well, as in my case I need to copy
similar members from quite different Struct, I would say no ;-)... (and
it's a 100-lines script, not a big project !).

  Cheers !

	Vince

-- 
Vincent Fourmond, PhD student
http://vincent.fourmond.neuf.fr/