ezuhaib/psymic

# If the model including this concern has an
# 'options' column, this concern allows you to
# store values in it and retrieve from it just
# like regular attributes

module Optionable
  extend ActiveSupport::Concern

    module ClassMethods

        def options(hash)
            @@options = hash
            serialize :options
            options_attr_accessor
        end

        def options_attr_accessor
          @@options.keys.each do |method_name|
            class_eval do
              # GETTER
              define_method method_name do
                self.options ||= {}
                # Read option value from db if present
                if !self.options[method_name].nil?
                  return self.options[method_name]
                # Read from defaults if not present
                else
                  return @@options[method_name]
                end
              end

              # SETTER
              define_method "#{method_name}=" do |value|
                self.options ||= {}
                if value == '1'
                  self.options[method_name] = true
                elsif value == '0'
                  self.options[method_name] = false
                else
                  self.options[method_name] = value
                end
              end

            end
          end
        end

        def option_params
              @@options.keys
        end

    end

end