From ddd0cd9f74e266b807366b6def3b18db183b3cf7 Mon Sep 17 00:00:00 2001
From: Marcin Kulik <marcin.kulik@gmail.com>
Date: Wed, 22 Aug 2012 20:26:20 +0200
Subject: [PATCH] HTTP caching for asciicast json data

---
 app/controllers/asciicasts_controller.rb | 18 +++++++++++++++---
 1 file changed, 15 insertions(+), 3 deletions(-)

diff --git a/app/controllers/asciicasts_controller.rb b/app/controllers/asciicasts_controller.rb
index f5b962c..da241d7 100644
--- a/app/controllers/asciicasts_controller.rb
+++ b/app/controllers/asciicasts_controller.rb
@@ -36,9 +36,21 @@ class AsciicastsController < ApplicationController
 
   def show
     @asciicast = AsciicastDecorator.new(@asciicast)
-    @asciicast_author = UserDecorator.new(@asciicast.user)
-    @title = @asciicast.smart_title
-    respond_with @asciicast
+
+    respond_to do |format|
+      format.html do
+        @asciicast_author = UserDecorator.new(@asciicast.user)
+        @title = @asciicast.smart_title
+        respond_with @asciicast
+      end
+
+      format.json do
+        if stale? @asciicast
+          respond_with @asciicast
+        end
+      end
+    end
+
   end
 
   def edit