lib/validates_zipcode/validator.rb
# frozen_string_literal: true
# Usage:
#
# class User < ActiveModel
# validates :postalcode, zipcode: true
#
# # Default country_alpha2 attribute.
# # You can change it using :country_code_attribute option
# def country_alpha2
# country.alpha2
# end
# end
#
require 'active_model'
require 'active_model/validator'
module ValidatesZipcode
class Validator < ActiveModel::EachValidator
def initialize(options)
@country_code = options.fetch(:country_code, nil)
@country_code_attribute = options.fetch(:country_code_attribute, :country_alpha2)
@excluded_country_codes = options.fetch(:excluded_country_codes, [])
@format = options.fetch(:format, false)
@message = options.fetch(:message, nil)
super
end
def validate_each(record, attribute, value)
alpha2 = @country_code || record.send(@country_code_attribute)
options = { zipcode: value.to_s,
country_alpha2: alpha2,
excluded_country_codes: @excluded_country_codes,
format: @format }
return if ValidatesZipcode::Zipcode.new(options).valid?
message = @message || I18n.t('errors.messages.invalid_zipcode', value: value, default: 'is invalid')
record.errors.add(attribute, :invalid_zipcode, message: message)
end
end
end
ActiveModel::Validations::ZipcodeValidator = ValidatesZipcode::Validator