class ISO3166::Country

def method_missing(*m)
  regex = m.first.to_s.match(/^find_(all_)?(country_|countries_)?by_(.+)/)
  super unless regex
  countries = find_by(Regexp.last_match[3], m[1], Regexp.last_match[2])
  Regexp.last_match[1] ? countries : countries.last
end