An ActiveRecord extension to deal with Extended DateTime Format attributes
gem install edtf-rails
In your model specify which attributes must be treated as EDTF:
edtf :attributes => [:date_of_birth, :date_of_death]
They needs to be of type string in the database.
To test compatibility with different versions of ActiveRecord appraisal was used
Comments and feedback are welcome
Copyright (c) 2014 masciugo. See LICENSE.txt for further details.