Get sorted list of territory and country names excluding those with end_dates using Open Register Ruby client

register-country-and-territory-list.rb

# Add gem
gem 'openregister-ruby-client', git: 'https://github.com/openregister/openregister-ruby-client'

# Inside application.rb
require 'openregister-ruby'

c = OpenRegister.register('country', :beta)._all_records + 
    OpenRegister.register('territory', :beta)._all_records

c.select{|x| x.end_date.blank?}.map(&:name).sort