gistfile1.txt

class Message
  include ActiveModel::Conversion
  include ActiveModel::Validations
  extend ActiveModel::Naming

  attr_reader :attributes

  def initialize(attributes = {})
    @attributes = attributes

    # TODO
    #
    # Define setter and getter methods for each attribute.
    #
    #   message = Message.new(:foo => 'bar')
    #   message.foo # => 'bar'
    #   message.attributes[:foo] # => 'bar'
    #   message.foo = 'baz'
    #   message.foo # => 'baz'
    #   message.attributes[:foo] # => 'baz'
    #

    @attributes.each_key do |key|
      eval <<-EOS
        def self.#{key}
          @attributes[#{key.inspect}]
        end

        def self.#{key}=(val)
          @attributes[#{key.inspect}] = val
        end
      EOS
    end
  end

  def persisted?
    false
  end
end