data_for

https://github.com/OutlawAndy/data_for

DataFor turns YAML in your Rails config directory into queryable, read-only models -- countries, currencies, plans, and other reference data that rarely changes and doesn't belong in your database. Built on Ruby's Data.define and Rails' config_for, with a familiar find, find_by, and where API, plus a transform proc that lets one config file power multiple query surfaces.