need to create the bar graph version, write up the remaining parts of the tutorial, and ensure it did not break the DOM vuln

app/controllers/dashboard_controller.rb

@@ -9,4 +9,18 @@ class DashboardController < ApplicationController
     	cookies[:font] = params[:font]
     end
   end
+  
+  def change_graph
+    self.try(params[:graph])
+  end
+  
+  def bar_graph
+    render :partial => "layouts/dashboard/bar_graph"
+  end
+  
+  def pie_charts
+     @user = current_user
+     render :partial => "layouts/dashboard/dashboard_stats"
+  end
+  
 end