techwhizbang/magic_meta_methods

A gem that serializes text and data structures into one column and makes that data readable/writable through meta-programmed methods on ActiveRecord as defined by :column. This gem is particularly useful for storing display data or meta data that isn't intended to be queried directly via SQL. It reduces the number of "one-off" columns and the clutter of serialized declarations with getter/setters on your model.

RubyMIT