[nchuhoai]

Leonid is bringing up some good points, but I was always wondering: How do you get to do auto-expiring page-caching.

While Leonid is right that Action Caching with Rails.cache is much easier to do, action caching still lets the request hit the stack, while it does not do so with this proposed solution. Page caching makes the expiration of the cache harder then this solution.

Question: It seems this solution has nearly the ease of action caching, but the performance gain like page caching. Is there a low-level gem/solution available to do something like this?

[gingerlime]

I'm really not sure, so please don't shoot me if I'm wrong. I'd be happy to learn more/be proven wrong.

I think the redis-store cache in rails also uses a rack middleware, and supports setting ttl on keys which will auto-expire on redis...?

https://github.com/jodosha/redis-store/blob/master/redis-rac...