gistfile1.rbx

class FeedItem
  include DataMapper::Resource
  property :id, Integer, :serial => true
  property :feed_item_id, Integer
  property :feed_item_type, String
	property :created_at, DateTime
	
	def initialize(feed_item)
	 self.feed_item_id = feed_item.id
	 self.feed_item_type = feed_item.class
	 save
	end
	
	def test
	  puts "Object = #{Object}" # > DataMapper::Types::Object
	 obj = Object.full_const_get(feed_item_type)
	end
	
end