BankCard / CreditCard

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

Description

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.

Example

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

Licence

released under the MIT license.