How can I implement write through caching in Rails 3 similar to cache-money?

I recently inherited a Rails 开发者_Go百科2.3 application that I'm now trying to upgrade to Rails 3. Cache-money is an integral part of the application so I want to make sure we have the same functionality in place when we go to Rails 3. However, my research on the subject has shown that cache-money is not compatible with Rails 3 (due to the use of unsupported AR methods :find_every and :find_from_ids).

I've seen a couple of comments and blogs mention that implementing the type of write through caching with Rails 3 that cache-money provided should be a trivial task. Any ideas on how to approach implementing write through caching with Rails 3?

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Last week I launched a new write-through-cache gem for Rails 3, see https://github.com/orslumen/record-cache.

The reason I built it, is because we were using cache money in a Rails 2.3 project and recently migrated to Rails 3. So chances are, it will also serve you well.

Writing your own write-though caching in Rails 3 does not sound like a trivial task to me. If you do find a trivial way, please be sure to copy me in on that.