direct_address

https://github.com/mnelson/direct_address

Direct Address provides a rails app with simple address features. This is a streamlined implementation of address functionality. Direct Address provides you with address, country, and region classes. It also provides a generator which generates the necessary javascript and rake tasks to implement properly. You'll also get form helpers to easily implement Direct Address in your views. A rake task is provided that allows up to date country and region information to be downloaded from geoname.org.