Markdown fields concern

markdown_fields.rb

#  __  __          _      _                 ___ _     _    _
# |  \/  |__ _ _ _| |____| |_____ __ ___ _ | __(_)___| |__| |___
# | |\/| / _` | '_| / / _` / _ \ V  V / ' \| _|| / -_) / _` (_-<
# |_|  |_\__,_|_| |_\_\__,_\___/\_/\_/|_||_|_| |_\___|_\__,_/__/
#
# "Immature poets imitate; mature poets steal" - T. S. Eliot
# "When there's anything to steal, I steal" - Pable Picasso
# "Good artists copy; great artists steal" - Steve Jobs
#
module MarkdownFields
  extend ActiveSupport::Concern

  included do
    def self.markdown_fields(*attrs)
      attrs.each do |attr|
        define_method "#{attr}_to_html".to_sym do
          parse_markdown send(attr)
        end
      end
    end
  end

  protected

  def parse_markdown(text)
    return nil unless text

    Kramdown::Document.new(text).to_html
  end
end