to_html.rb

module ToHTML
  def self.included(base)
    base.send(:include, InstanceMethods)
  end
  
  module InstanceMethods
    # Recursively builds simple HTML for an arbitrary data structure
    # Suited for use with data from ActiveSupport::JSON.decode
    def from_json_to_html(context = '')
      output = ''
    
      case self
      when Hash
        self.each do |k,v|
          next if k.to_s =~ /id$/
          output << "<div class='#{k}>"
          output << v.from_json_to_html(k)
          output << "</div>"
        end
      when Array
        self.each do |o|
          output << o.from_json_to_html(context)
        end
      when String, Numeric
        output << "<p class='#{context}'>#{self}</p>"
      else
        output << ''
      end
    
      output
    end
  end
end

class Object;  include ToHTML; end