<img src=“https://secure.travis-ci.org/alovak/bank_card.png?branch=master” alt=“Build Status” />

• Source: github.com/alovak/bank_card

• Bugs: github.com/alovak/bank_card/issues

This gem contains

• validation methods to check card number with Luhn method, card expiration date

• brand detection method for Visa, MasterCard, JCB, Discover, Maestro, Diners Club, American Express.

class CreditCard < ActiveRecord::Base
  include BankCard::Validations
  include BankCard::Brands

  validates :number, :luhn => true
  validates_expiration_of :date

  before_create :set_brand

  private
  def set_brand
    self.brand = detect_brand(number)
  end
end

You can get more info from specs

released under the MIT license.