Using this gem in an application using ActiveRecord will provide you with a 'cache_key' method on collections of models.
The 'cache_key' will consist of:
the tableized name of the class of the first item
an MD5 hash of the ids in the collection
to_i on the max created_at date
to_i on the max updated_at date
The 'cache_key' should look like:
The resulting cache_key will be different if your group is sorted differently because the MD5 hash is created according to the order given: no sorting is done to create the hash.
If your collection is empty, the cache_key will return a key with the object_id. A cache_key for an empty collection will look like:
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Note on Patches/Pull Requests
Fork the project.
Make your feature addition or bug fix.
Add tests for it. This is important so I don't break it in a future version unintentionally.
Commit, do not mess with rakefile, version, or history. (if you want to have your own version, that is fine but
bump version in a commit by itself I can ignore when I pull)
Send me a pull request. Bonus points for topic branches.
Copyright © 2009 Jim Gay. See LICENSE for details.