X-Git-Url: https://projects.mako.cc/source/selectricity/blobdiff_plain/9abed97635edbac7fb1a687298fff5c5434cdff4..99e1580f0d7707b8e2f8c08f8aae70c3d4906637:/app/models/ranking.rb

diff --git a/app/models/ranking.rb b/app/models/ranking.rb
index f24f0f9..9a47193 100644
--- a/app/models/ranking.rb
+++ b/app/models/ranking.rb
@@ -1,4 +1,21 @@
+# Selectricity: Voting Machinery for the Masses
+# Copyright (C) 2007, 2008 Benjamin Mako Hill <mako@atdot.cc>
+# Copyright (C) 2007 Massachusetts Institute of Technology
+#
+# This program is free software. Please see the COPYING file for
+# details.
+
 class Ranking < ActiveRecord::Base
   belongs_to :candidate
   belongs_to :vote
+  acts_as_list :scope => :vote, :column => :rank
+
+  def <=>(other)
+    self.rank <=> other.rank
+  end
+
+  def to_s
+    self.rank.to_s
+  end
+
 end