ValidatesAsCnpj
This gem is based on OSS works in https://projetos.ossystems.com.br/projects/plugonrails/repository/browse/plugins/validates_as_cnpj
Installation
You can install as gem:
gem "validates_as_cnpj"
Or as plugin:
$ rails plugin install git://github.com/sobrinho/validates_as_cnpj.git
Usage
class Company < ActiveRecord::Base
validates :document, :cnpj => true
end
License
Copyright © 2009-2010 Gabriel Sobrinho, released under the MIT license