merged in changes from live version

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

diff --git a/app/models/selectricity_service.rb b/app/models/selectricity_service.rb
index 544b618d7c78fddce9fb5d91f8a3a65cf263264c..aba9c02acae1fe455001e2a98ab1bbcbd6e9a6ac 100644 (file)
--- a/app/models/selectricity_service.rb
+++ b/app/models/selectricity_service.rb
@@ -1,7 +1,29 @@
+# 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: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as
+# published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public
+# License along with this program.  If not, see
+# <http://www.gnu.org/licenses/>.
+
 require 'action_controller/integration'
 
 class SelectricityService < ActionWebService::Base
   web_service_api SelectricityAPI
+
+  ## Casts a quickvote.
+  ## Expects a quickvote name, a voter ID, and a list of candidate ID's respectively.
+  ## Returns a string containing any potential errors that occurred in the process.
   def cast_quickvote(election_name, voter_id, vote_list)
     election = QuickVote.ident_to_quickvote election_name
     if election
@@ -25,6 +47,11 @@ class SelectricityService < ActionWebService::Base
       raise ArgumentError.new("Cannot find election #{election_name}")
     end
   end
+
+  ## Converts QuickVote candidate ID's to names
+  ## Takes in a QuickVote name and a list of candidate ID's, and returns the names of
+  ## each candidate. Useful for doing just a few lookups; it's more efficient to use
+  ## get_quickvote_candidate_map for presenting info about an entire election.
   def quickvote_candidate_ids_to_names(shortname, id_list)
     qv=QuickVote.ident_to_quickvote(shortname)
     candidates={}
@@ -42,10 +69,14 @@ class SelectricityService < ActionWebService::Base
     }
     results
   end
+
+  ## Return the results of a QuickVote.
+  ## Takes in the name of a quickvote, and returns a structure as described by
+  ## QuickVoteResultStruct
   def get_quickvote_results(shortname)
     #TODO: Validate shortname
     qv=QuickVote.ident_to_quickvote(shortname)
-    result=VoteResultStruct.new
+    result=QuickVoteResultStruct.new
     unless qv
       raise ArgumentError.new("No quickvote with name #{shortname} found!")
     end
@@ -57,9 +88,15 @@ class SelectricityService < ActionWebService::Base
     result.borda_winners=qv.borda_result.winners
     result
   end
+
+  ## Returns information regarding all the candidates in a QuickVote
+  ## Takes in a QuickVote name, and returns the list of names and ID's of candidates
+  ## This can be useful for presenting the user with a list of readable names, while
+  ## the software sends results to us in the numeric ID's we require. The two lists are in
+  ## respective order.
   def get_quickvote_candidate_map(shortname)
     qv=QuickVote.ident_to_quickvote(shortname)
-    result=CandidateMap.new
+    result=QuickVoteCandidateMap.new
     unless qv
       raise ArgumentError.new("No quickvote with name #{shortname} found!")
     end
@@ -70,6 +107,8 @@ class SelectricityService < ActionWebService::Base
     result
   end
 
+  ## Get information on all the votes cast in a QuickVote
+  ## Takes in the name of a QuickVote, returns an array of QuickVoterInfo structures.
   def get_quickvote_votes(shortname)
     qv = QuickVote.ident_to_quickvote(shortname)
 
@@ -78,7 +117,7 @@ class SelectricityService < ActionWebService::Base
     end
 
     qv.votes.collect do |vote|
-       VoteInfo.new(:voter_id => vote.voter.id,
+       QuickVoterInfo.new(:voter_id => vote.voter.id,
                     :voter_ipaddress => vote.voter.ipaddress,
                     :vote_time => vote.time.to_i,
                     :vote => vote.votes,
@@ -86,18 +125,21 @@ class SelectricityService < ActionWebService::Base
     end
   end
 
+  ## Gets a list of all QuickVotes in the system.
   def list_quickvotes()
     QuickVote.find(:all).collect do |election|
       get_quickvote(election.name)
     end
   end
 
+  ## Gets information on a particular QuickVote
+  ## Takes in a QuickVote name
   def get_quickvote(shortname)
     unless election = QuickVote.ident_to_quickvote(shortname)
       raise ArgumentError.new("Cannot find QuickVote named #{shortname}")
     end
 
-    ElectionStruct.new(
+    QuickVoteStruct.new(
       :id => election.id,
       :name => election.name,
       :description => election.description,
@@ -105,6 +147,9 @@ class SelectricityService < ActionWebService::Base
       :candidate_names => election.candidates.collect {|c| c.name } )
   end
 
+  ## Create a QuickVote
+  ## Pass in a QuickVoteStruct populated with all the fields but the candidate ID's
+  ## Any candidate ID's you fill in will be ignored anyway.
   def create_quickvote(election)
     qv = QuickVote.new(:name => election.name,
                        :description => election.description)