From: Wilson Bilkovich <wilsonb@...>
Date: 2006-10-17T11:42:44+09:00
Subject: Re: dynamically assigning instance variables (redux)

On 10/16/06, Bil Kleb <Bil.Kleb@nasa.gov> wrote:
> I need a modern answer to Daniel Berger's 2002 post,
>
>   http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-talk/39534
>
>   Is there a way to dynamically assign instance variables?
>
>   class SomeClass
>     def initialize(hash)
>       hash.each do |key,val|
>         @#{key} = val # Doesn't work
>       end
>     end
>   end
>

Here's one way:
http://rubyquiz.com/quiz67.html

If you just want to set instance variables, you can do:
def initialize(has)
  hash.each do |key,val|
    instance_variable_set "@#{key}", val
  end
end