From: Lars Olsson <lasso@...>
Date: 2011-04-11T18:20:35+09:00
Subject: Copying parameters to singleton class

Hi list!

I have a metaprogramming question that is driving me mad. I though I
understood how to do it, but obviously I didn't. This is what I want
to do:

I want to create a class method that takes a bunch of options and
returns a singleton class with those options set,

class Opportunities
  def self.using(options)
    # Store options in singleton class variable @options and then
return singleton class
  end
  def self.options
    return @options
  end
end

So that I can use:

foo = Opportunities.using({:one => 1, :two: => 2, :three => 3})
bar = Opportunities.using({:four => 4, :five: => 5, :six => 6})

and then

foo.options => {:one => 1, :two: => 2, :three => 3}
bar.options => {:four => 4, :five: => 5, :six => 6}

Please note that I don't want instances of the Opportunities class, I
want two separate classes that shares the same behavior except for
that they return different values for the Opportunities.options call.

This really should be possible with ruby, right?

/lasso