merge everything back from mainline branch

[selectricity-live] / app / models / election.rb

diff --git a/app/models/election.rb b/app/models/election.rb
index 7fa138ef4c433b4aafc239cd573aaf04a31bb8fb..a3cf8e47c1b3db7ee0e74908eb71f0fcd5798c46 100644 (file)
--- a/app/models/election.rb
+++ b/app/models/election.rb
@@ -1,3 +1,10 @@
+# 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 Election < ActiveRecord::Base
   has_many :candidates
   has_many :voters
@@ -55,7 +62,7 @@ class Election < ActiveRecord::Base
       reasons << "You must have at least two candidates."
     end
     
-    if self.voters.length <= 1
+    if self.voters.length <= 1 and self.authenticated?
       reasons << "You must have at least two voters."
     end
 
@@ -68,7 +75,7 @@ class Election < ActiveRecord::Base
   end
   
   def quickvote?
-    self.class == 'QuickVote'
+    self.class == QuickVote
   end
 
   def active?
@@ -79,6 +86,10 @@ class Election < ActiveRecord::Base
     active == 2
   end
 
+  def authenticated?
+    authenticated
+  end
+  
   def shortdesc
     shortdesc = description.split(/\n/)[0]
   end
@@ -88,8 +99,28 @@ class Election < ActiveRecord::Base
     longdesc.length > 0 ? longdesc : nil 
   end
   
-  #Calculate Election Results
+  #Calculate results if not in memcache
   def results
+    # Assignment is intentional
+    if Cache and c = Cache.get("election_results:#{id}:#{self.votes.length}")
+      @plurality_result = c['plurality']
+      @approval_result = c['approval']
+      @condorcet_result = c['condorcet']
+      @ssd_result = c['ssd']
+      @borda_result = c['borda']
+      return c
+    elsif Cache
+      # memcache is available, but missed.
+      results = self.results!
+      Cache.set("election_results:#{id}:#{self.votes.length}", results)
+      return results
+    else
+      return self.results!
+    end
+  end
+
+  #Always Calculate Election Results
+  def results!
     # initalize the tallies to empty arrays
     preference_tally = Array.new
     plurality_tally = Array.new
@@ -129,7 +160,6 @@ class Election < ActiveRecord::Base
     
     names
   end
-  
 end