Update memcache example to invalidate cache after new message posted.

jeffmendoza · jeffmendoza · commit 81f55f6a794e · 2015-05-21T13:35:54.000-07:00
diff --git a/appengine/memcache/guestbook/main.py b/appengine/memcache/guestbook/main.py
@@ -127,6 +127,7 @@ def post(self):
 
         greeting.content = self.request.get('content')
         greeting.put()
+        memcache.delete('{}:greetings'.format(guestbook_name))
         self.redirect('/?' +
                       urllib.urlencode({'guestbook_name': guestbook_name}))
 
