module BikePOA
  module Helpers
    module ForceField
      def self.included(base)
        base.send :extend, ClassMethods
      end

      module ClassMethods
        def force_integer(field)
          class_eval do
            define_method("#{field}=".to_sym) do |value|
              self.[]=(field, Integer(value))
            end
          end
        end
      end
    end
  end
end