PhoneNumbers

PhoneNumbers simplifies management of phone number attributes in ActiveRecord models. Add a string field to your model to hold the phone number, pass it to phone_numbers, and you're done!

class Person < ActiveRecord::Base
  phone_numbers :cell_phone
end

This will ensure that the phone number in cell_phone is of a valid phone number format, and invalidate Person if the phone number is invalid. It will also play nice with form_for, so you can display the errors to your users.

Using Formats

By default, phone_numbers will validate against a US phone number format. For this, all you need to do is:

class Person < ActiveRecord::Base
  phone_numbers :cell_phone
end

If, however you want to validate against a different phone number format, you can:

class Office < ActiveRecord::Base
  phone_numbers :main, :format => :us
  phone_numbers :abroad, :format => :france
end

This will validate the main attribute against a US number format (included), and abroad against a France number format (if you've specified it).

Specifying Formats

Format names and specifications are stored in the PhoneNumbers.formats hash. The key is a symbol (that can be used with the :format option to phone_numbers), and the value is a regular expression that the attribute is matched against.

In a Rails project, you can specify additional formats a number of ways, but the cleanest is to put your number formats in an initializer. For example, config/initializers/phone_number_formats.rb:

my_formats = {:my_number_format => /\d{10}/,
              :no_area_code => /\d{3}-\d{4}/}

PhoneNumbers.formats.update(my_formats)

Hope you like it!

Copyright (c) 2009 [Vladimir Andrijevik], released under the MIT license