adds budget stats for final voting to admin stats

app/controllers/admin/stats_controller.rb

@@ -74,6 +74,17 @@ class Admin::StatsController < Admin::BaseController
     end
   end
 
+  def budget_balloting
+    @budget = Budget.find(params[:budget_id])
+    @user_count = @budget.ballots.select {|ballot| ballot.lines.any? }.count
+
+    @vote_count = @budget.lines.count
+
+    @vote_count_by_heading = @budget.lines.group(:heading_id).count.collect {|k,v| [Budget::Heading.find(k).name, v]}.sort
+
+    @user_count_by_district = User.where.not(balloted_heading_id: nil).group(:balloted_heading_id).count.collect {|k,v| [Budget::Heading.find(k).name, v]}.sort
+  end
+
   def polls
     @polls = ::Poll.current
     @participants = ::Poll::Voter.where(poll: @polls)