From: Markus Jais <mjais@...>
Date: 2002-06-04T17:39:15+09:00
Subject: dynamic attr_accessor again using a hash

hello

thanks for all your answers to my question yesterday.

I came up with this solution, where I use a hash as
an argument to initialize

#########
class Cla
        def initialize(hash)
                hash.keys.each do |key|
                        type.send(:attr_accessor, key)  
                end

                hash.each do |key, value|
                        self.instance_eval "
                                @#{key}=value
                        "
        end
        end

end
hash = { "uno" => "one", "dos" => "two"}
c = Cla.new(hash)

puts c.uno
puts c.dos

##########

I tryed to avoid "eval" like Holden Glova recommended but 
I found no way to avoid "eval" for initializing the instance
variables. I am quite content with this solution, but
if there is an even better one, please let me know.
thanks!

by the way. I showed this stuff a C++ guy and then he asked
me if I could recommend him a good Ruby book. seems like there
is one more Ruby fan out there now.

markus