gistfile1.txt

https://www.dropbox.com/s/qylqw48lcehszkz/Screenshot%202016-02-24%2022.03.19.png?dl=0
https://www.dropbox.com/s/pqju8wg70b76rnz/Screenshot%202016-02-24%2022.04.47.png?dl=0
https://www.dropbox.com/s/imqnlyem413vauz/Screenshot%202016-02-24%2022.15.05.png?dl=0

ObjectForm inheritance from model.rb

module ApplicationType
  extend ActiveSupport::Concern

  module ClassMethods
    def model_name
      superclass.model_name
    end

    def name
      superclass.name
    end

    def permit(*args)
      @_args = args
    end

    def progress(*args)
      @_progress_args = args
    end

    def _progress_args
      @_progress_args
    end

    def _args
      @_args
    end
  end

  def assign_attributes(attrs = {}, options = {})
    raise ArgumentError, "expected hash" if attrs.nil?
    if attrs.respond_to? :permit
      permitted_attrs = attrs.send :permit, self.class._args
      super(permitted_attrs)
    else
      super(attrs)
    end
  end

  def total_fields
    attributes.select { |name, val| self.class._progress_args.include?(name.to_sym) }
  end

  def completed_fields
    total_fields.select{ |key, val| val.present? }
  end

  def progress
    (completed_fields.count / total_fields.count.to_f * 100).to_i
  end
end