Rails – Country Select

Provides a simple helper to get an HTML select list of countries using the ISO 3166-1 standard.

It is also configurable to use countries' ISO 3166-1 alpha-2 codes as values and ISO 3166-1 names as display strings.

While the ISO 3166 standard is a relatively neutral source of country names, it may still offend some users. Developers are strongly advised to evaluate the suitability of this list given their user base.

Installation

Install as a gem using

gem install country_select

Or put the following in your Gemfile

gem 'country_select'

Example

Simple use supplying model and attribute as parameters:

country_select("user", "country")

Supplying priority countries to be placed at the top of the list:

country_select("user", "country", [ "Great Britain", "France", "Germany" ])

Using ISO 3166-1 alpha-2 codes as values

You can have the option tags use ISO 3166-1 alpha-2 codes as values and the country names as display strings. For example, the United States would appear as <option value="us">United States</option>

If you're starting a new project, this is the recommended way to store your country data since it will be more resistant to country names changing.

country_select("user", "country_code", nil, iso_codes: true)

country_select("user", "country_code", [ "GB", "FR", "DE" ], iso_codes: true)

Global configuration to always use ISO codes

Add the following configuration to an initializer.

::CountrySelect.use_iso_codes = true

Getting the Country from ISO codes

class User < ActiveRecord::Base

  # Assuming country_select is used with User attribute `country_code`
  def country_name
    ::CountrySelect::COUNTRIES[country_code]
  end

end

Tests

bundle
bundle exec rspec

Running with multiple versions of actionpack

bundle exec appraisal

Copyright (c) 2008 Michael Koziarski, released under the MIT license