In my app I am serving certain controller actions every x many minutes. For example, most popular posts are generated in memcached every 30 minutes and served from there.
I would like to use etags/last_modified so that I am not even rendering the same "most_popular" view for the same client within that 30 minute period. However I am not sure how to generate an etag or a last_modified would suit this situation.
the flow would be something like.
def index case 'listing_type' when 'all_posts' if stale?(:last_modified => "timestamp that doesn't change for 30 minutes") @posts = get_posts_from_memcached end end
Short of saving this timestamp to the db..how else can I create a last_modified that time that works for this?