generate_pdf gets it's parameter now

railties/guides/source/action_controller_overview.textile

@@ -625,9 +625,9 @@ class ClientsController < ApplicationController
   # returns it. The user will get the PDF as a file download.
   def download_pdf
     client = Client.find(params[:id])
-    send_data(generate_pdf, 
+    send_data generate_pdf(client), 
               :filename => "#{client.name}.pdf",
-              :type => "application/pdf")
+              :type => "application/pdf"
   end
 
   private