Credit Card Validation

This gem adds the capability of validating credit cards to ActiveRecord and ActiveModel (Rails 3+) and Ruby 1.9.2+.

Installation

# add this to your Gemfile
gem "credit_card_validation"

and run

bundle

Usage

With ActiveRecord

class Order < ActiveRecord::Base
  # standard validation
  validates :card_number, credit_card: true

  # with legacy syntax
  validates_credit_card :card_number

  # with custom message
  validates :card_number, credit_card: { message: "card is not valid?" }
end

With ActiveModel

class Order
  include ActiveModel::Validations

  attr_accessor :card_number

  validates :card_number, credit_card: true
end

I18n

The default error message is not a valid credit card. You can pass the message: "my custom error" option to your validation to define your own, custom message.

Authors

Rahul Trikha (http://twitter.com/rahult)