with_replies.rb

def self.with_replies(id, options = {})
  options.merge!(:startkey => [id], :endkey => [id,{}], :raw => true, :include_docs => true)
  #by_replies calls the view with map_hierarchy.js as the map function
  raw_replies = by_replies(options)
  return [] if raw_replies.empty?
  class_eval do
    raw_replies["rows"].map do |row|
      if row["key"].size == 1
        new(row["doc"])
      else
        [(row["key"].size-1) / 2,new(row["doc"])]
      end
    end
  end
end