From: Sebastia <shfriedrich@...>
Date: 2006-12-12T08:55:11+09:00
Subject: Inserting surrounding scope into singelton method definition

I have a sorted array (in this case, an ActiveRecord result set) that i 
want to give awareness of its sorting state. I defined a singelton 
method on the array but i can't figure out how to insert a value from 
the surrounding scope. Below is the best i could come up with, but it 
seems quite horrid (and using plain eval would be even worse i 
suppose). I seem to remember that there was a better way... Anybody?

Thanks,
Sebastian

sort_term = "label"
results = User.find(:all, :order => sort_term)

class << results
  def sorted_by?
  @sorted_by_term
  end
end

results.instance_variable_set("@sorted_by_term",sort_term)