Clean code for layout and modifications in dev.rake

app/controllers/admin/sites_controller.rb

@@ -0,0 +1,16 @@
+class Admin::SitesController < ApplicationController
+  
+  layout "admin"
+  before_filter :authenticate_user!
+  before_filter :is_admin?
+  
+  def index
+    @site = Site.first
+    redirect_to :action => :new unless @site
+  end
+  
+  def new
+    @site = Site.new
+  end
+  
+end