Added the choices position and get_posititons_info to graph controller. Right now...

[selectricity] / app / controllers / graph_controller.rb

diff --git a/app/controllers/graph_controller.rb b/app/controllers/graph_controller.rb
index 38025effe8ee15ef907353f244a93e08c62b6ccf..17e157809aab4fb5020a4c76ebdd6d850115ce8f 100644 (file)
--- a/app/controllers/graph_controller.rb
+++ b/app/controllers/graph_controller.rb
@@ -1,6 +1,6 @@
 require 'date'
 class GraphController < ApplicationController
-
+  
   class GruffGraff
   
     def initialize(options)
@@ -63,11 +63,7 @@ class GraphController < ApplicationController
                             :y_axis_label => "Number of Votes")
     send_data(*graph.output)
   end
- 
-  def quickvote_bar
-    @election = Election.find(params[:id])
-  end
-  
+
   def borda_bar
     @election = Election.find(params[:id])
     pref_tally = make_preference_tally(@election)
@@ -85,7 +81,69 @@ class GraphController < ApplicationController
     send_data(*graph.output)
   end
  
+  def choices_positions
+    @election = Election.find(params[:id])
+    pref_tally = make_preference_tally(@election)
+    
+    fulldata = get_positions_info(@election)
+    (0...@election.candidates.size).each do |i|
+      sbar.data("Candidate#{i+1}", fulldata[i])
+    end
+    
+    sbar = Gruff::Bar.new
+    sbar.title = "Times Voted in Each Position"
+    #sbar.theme = { :background_colors => ['#73BF26', '#ffffff'] }
+    sbar.font = File.expand_path('/usr/X11R6/lib/X11/fonts/TTF/Vera.ttf',
+                                 RAILS_ROOT)
+    
+    graph = GruffGraff.new( :graph_type => Gruff::Bar,
+                            :data_name => @election.name,
+                            :data => data,
+                            :interval_labels => labels,
+                            :title => "Times Candidate Was Voted Each Position",
+                            :x_axis_label => "Rank",
+                            :y_axis_label => "Number of Times")
+                                       
+    
+   
+    
+    sbar.x_axis_label = "Rank"
+    sbar.y_axis_label = "Number of Times Ranked"
+     
+    sbar.minimum_value = 0.0
+    send_data(sbar.to_blob, :disposition => 'inline', :type => 'image/png')
+                              
+    
+    #data, labels = get_positions_info(@election)
+    
+  end
  private 
+ 
+  def get_positions_info(election)
+    buckets = Hash.new
+    buckets2= Hash.new
+    ranks = Hash.new
+  
+    election.candidates.each do |candidate|
+      buckets[candidate.id] = []
+      buckets2[candidate.id] = []
+    end
+     
+    election.votes.each do |vote|
+      vote.rankings.each do |ranking|
+        buckets[ranking.candidate_id] << ranking.rank
+      end
+    end
+       
+    buckets.each_pair do |id, array|
+      (1..election.candidates.size).each do |i|
+        buckets2[id] << (array.find_all {|rank| rank == i}).size
+      end
+    end
+    
+    return buckets2.values
+    
+  end
    
   # generate the data and labels for each graph
   def get_votes_per_day_data(election)
@@ -149,7 +207,7 @@ class GraphController < ApplicationController
      
     # Put votes into bucket according to the time interval to which they belong,
     # referenced by their key
-    # Will build a graph over time, as each successive interval wil lhave more
+    # Will build a graph over time, as each successive interval will have more
     # vote objects  
     election.votes.each do |vote|
       buckets.keys.sort.each do |inter|
@@ -175,7 +233,7 @@ class GraphController < ApplicationController
       interval_type = "Hour of the Day on 24 hour scale"
     else #more than 2 days means use dates for labels
       labels_hash[0] = (Date.parse(starttime.to_s)).to_s
-      labels_hash[(numcols/2)-1] = (Date.parse(starttime + (timedelta/2))).to_s
+      labels_hash[(numcols/2)-1] = (Date.parse((starttime + (timedelta/2)).to_s)).to_s
       labels_hash[numcols-1] = (Date.today).to_s
       interval_type = "The Date"
     end