Simple Gist to create a Module with class methods

my_plan.rb

module Plan
  def self.included(base)
    base.extend(ClassMethods)
  end
  module ClassMethods
    def components_methods(components)
     components.each do |key, value|
       attr_accessor(key)
     end
    end
  end
end

class MyPlan
 include Plan
 
 components_methods %w(disk memory cpu)
end

plan = MyPlan.new

puts plan.disk       
plan.disk='Disk0'
puts plan.disk

I've been thinking about mixing and inheritance and I think (think because I haven't tried to change the codebase yet) that inheritance will be good on this rails because of STI, STI helps us a LOT... and to have MyPlan mapped to a database that we need STI

After refactoring prices I'm gonna be able to do some tests on this

the idea of this gist (think on OO is cool), but I don't know if using Rails and AR STI would save us a lot of work