id = GET_PARAMS['id']
cached = memcache.get("feed_%s" % id)
if cached is not None:
    return cached
else:
    feed = generate_feed(id)
    memcache.put("feed_%s" % id, feed)
    return feed

id = sanitise(GET_PARMS['id'])
query = query("SELECT title, body FROM posts WHERE id=%%", id)

cached_query_result = memcache.get(query.hash())
if cached_query_result:
    feed = generate_feed(cached_query_result)
    return feed
else:
    query_result = query.execute()
    memcache.put("feed_%s" % id, query_result)
    feed = generate_feed(query_result)

id = GET_PARMS['id']
query = query("SELECT title, body FROM posts WHERE id=%%", id)