ValidCreditCard

ActiveModel validation for credit card number.

Add this line to your application's Gemfile:

gem 'valid_credit_card'

And then execute:

$ bundle

Or install it yourself as:

$ gem install valid_credit_card

If you want to validate that it is a valid credit card number:

class User < ActiveRecord::Base
  validates :cc_number, presence: true, credit_card: true
end

To validate that the credit card type:

validates :cc_number, credit_card: { card_types: ['visa'] }

Note that this gem will let an empty credit card number pass through so you will need to add presence: true if you require an credit card number

credit_card = ValidCreditCard::CreditCard.new(3530111333300000)
credit_card.valid? => true
credit_card.is_visa? => false
credit_card.is_jbc? => true
credit_card.card_type? => jbc

• Ruby-1.9
• Ruby-2.0
• Ruby-2.1
• Ruby-2.2
• JRuby-1.9

1. Fork it
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create new Pull Request

The gem is available as open source under the terms of the MIT License.