Support use in Rails validations

[elskwid]

#17 was asking how to use phone in model validations. This would be a nice feature but it isn't on the roadmap.

[milgner]

Actually this is quite simple, posting just in case someone is looking for it:

class PhoneNumberValidator < ActiveModel::EachValidator
  def validate_each(record, attribute, value)
    return if value.nil? || value.empty? || Phoner::Phone.valid?(value)
    record.errors.add(attribute, I18n.t('errors.messages.invalid'))
  end
end

And then in your model:

class User < ActiveRecord::Base
  validates :phone_number, phone_number: true
end

[elskwid]

@milgner do you mind if I add something like this to the README? (Or you could too. 😄)