Rails caches_action Plugin
This plugin applies a patch from Rails edge to ActionPack, which enables the use of cache-specific options from the caches_action method.
For example, you can specify :expires_in => 30 when using the MemCache cache store.
The patch will only be applied if the Rails version is 2.1.0, 2.1.1 or 2.1.2.
Only works with Rails 2.1. Versions greater than 2.1 should have this functionality built in.
ruby script/plugin install git://github.com/nickpad/rails-caches-action-patch.git