Merged from Mako.

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

diff --git a/app/models/election.rb b/app/models/election.rb
index be828d0e28fac2512df5f004df1b3053ce5fb3c8..d76c13f633cd7ddb7b48ca560deb60d54f266d4a 100644 (file)
--- a/app/models/election.rb
+++ b/app/models/election.rb
@@ -1,12 +1,126 @@
 class Election < ActiveRecord::Base
   has_many :candidates
+  has_many :voters
+  has_many :votes
+  belongs_to :user
   validates_presence_of :name, :description
+  
+  attr_reader :plurality_result
+  attr_reader :approval_result
+  attr_reader :condorcet_result
+  attr_reader :ssd_result
+  attr_reader :borda_result
+
+  require 'date'
+
+  def startdate
+    read_attribute( :startdate ) || Time.now
+  end
+  
+  def enddate
+    date = read_attribute( :enddate ) || Time.now + 14
+    date - 1.second
+  end
+
+  def enddate=(date)
+    date += 1.day
+    date = Time.gm(*date)
+    super(date)
+  end
+
+  def votes
+    votes = Array.new
+    self.voters.each do |voter|
+      votes << voter.vote
+    end
+    return votes
+  end
 
   def destroy
     self.candidates.each do |candidate|
       candidate.destroy
     end
-    super destroy
+    super
+  end
+
+  def start_blockers
+    reasons = []
+    
+    if self.candidates.length <= 1
+      reasons << "You must have at least two candidates."
+    end
+    
+    if self.voters.length <= 1
+      reasons << "You must have at least two voters."
+    end
+
+    reasons
+  end
+
+  def activate!
+    self.active = 1
+    self.save!
+  end
+  
+  def quickvote?
+    self.class == 'QuickVote'
+  end
+
+  def active?
+    active == 1
+  end 
+
+  def done?
+    active == 2
+  end
+
+  def shortdesc
+    shortdesc = description.split(/\n/)[0]
+  end
+
+  def longdesc
+    longdesc = description.split(/\n/)[1..-1].join("")
+    longdesc.length > 0 ? longdesc : nil 
+  end
+  
+  #Calculate Election Results
+  def results
+    # initalize the tallies to empty arrays
+    preference_tally = Array.new
+    plurality_tally = Array.new
+    approval_tally = Array.new
+
+    self.voters.each do |voter|
+      # skip if the voter has not voted or has an unconfirmed vote
+      next unless voter.voted?
+
+      plurality_tally << voter.vote.rankings.sort[0].candidate.id
+      approval_tally << voter.vote.rankings.sort[0..1].collect \
+        { |ranking| ranking.candidate.id }
+      preference_tally << voter.vote.rankings.sort.collect \
+        { |ranking| ranking.candidate.id }
+    end
+    @plurality_result = PluralityVote.new(plurality_tally).result
+    @approval_result = ApprovalVote.new(approval_tally).result
+    @condorcet_result = PureCondorcetVote.new(preference_tally).result
+    @ssd_result = CloneproofSSDVote.new(preference_tally).result
+    @borda_result = BordaVote.new(preference_tally).result
+    #@runoff_result = InstantRunoffVote.new(preference_tally).result
+    
+    nil # to stay consistent
+  end
+  
+  def names_by_id
+    names = Hash.new
+    
+    competitors = self.candidates.sort.collect {|candidate| candidate.id}
+    competitors.each do |candidate|
+      names[candidate] = Candidate.find(candidate).name
+    end
+    
+    names
   end
   
 end
+
+