gistfile1.rb

def get_country
  code = cookies[:country]

  unless code.present?
    set_country_cookie
    code = cookies[:country] || 'US'
  end

  set_locale(code)
  code
end

def set_country_cookie
  country = GEOIP_DB.country(request.remote_ip)

  if country
    # the default value should never be used.
    cookies[:country] = {
      value:   country.country_code2,
      expires: 1.year.from_now,
      path:    '/'
    }
  end
end

def set_locale(country_code)
  locale = if GlobalConstants::LOCALES.include?(country_code)
    GlobalConstants::LOCALES[country_code]
  end

  I18n.locale = locale || I18n.default_locale
end