hashmodel

https://github.com/mikbe/hashmodel

A hash based MVC model class that makes searching and updating deeply nested hashes a breeze. You can store deeply nested hashes and still easily flatten, query, and update the records using flattened field names. It's meant to be used for small, in-memory recordset that you want an easy, flexible way to query. It is not meant as a data storage device for managing huge datasets.