gmoney.rb

module Concerns
  module Gmoney
    extend ActiveSupport::Concern

    included do

      def self.gmoney(*attrs)
        attrs.each do |attr|
          define_method(:"#{attr}=") do |money|
            if money.blank?
              self[attr] = 0.0
            elsif money.is_a?(String)
              self[attr] = money.gsub(/[\$,]/, '').to_f
            else
              self[attr] = money
            end
          end
        end
      end

    end

  end
end