From: Andrea Gianarro <giandrea@...>
Date: 2008-07-23T18:36:01+09:00
Subject: Generate accessors for an hash

Hello, I need to generate read and write accessors for all the keys in
an hash.
Say I have an attribute named my_attribute, I need "my_attribute" and
"my_attribute=" methods to read and write it to
@attributes[my_attribute].

I tried this code in the class constructor:

    for a in all_attributes
      method_name = a.name
      self.class.class_eval do
        define_method method_name do
          @attributes[method_name]
        end
        define_method method_name+"=" do |val|
          @attributes[method_name] = val
        end
      end
    end

It generates the method for the class, but all the methods read and
write to the last attribute in the all_attributes list. That's
strange...
Thank you,

Andrea Gianarro
-- 
Posted via http://www.ruby-forum.com/.