Agile Web Development with Rails, Edition 4

Agile Web Development with Rails, Edition 4

26.3 HAML 25.2 rake

26.1 Active Merchant

Determine if a credit card is valid

edit Gemfile
gem 'activemerchant'
bundle install
Using rake (0.9.2.2) 
Using i18n (0.6.0) 
Using multi_json (1.0.3) 
Using activesupport (3.2.0.beta) 
Using builder (3.0.0) 
Using activemodel (3.2.0.beta) 
Using erubis (2.7.0) 
Using journey (1.0.0.20111022124133) 
Using rack (1.3.5) 
Using rack-cache (1.1) 
Using rack-test (0.6.1) 
Using hike (1.2.1) 
Using tilt (1.3.3) 
Using sprockets (2.0.3) 
Using actionpack (3.2.0.beta) 
Using mime-types (1.17.2) 
Using polyglot (0.3.2) 
Using treetop (1.4.10) 
Using mail (2.3.0) 
Using actionmailer (3.2.0.beta) 
Using active_utils (1.0.1) 
Using braintree (2.12.0) 
Using json (1.6.1) 
Using money (3.7.1) 
Using activemerchant (1.18.1) 
Using arel (2.2.1) 
Using tzinfo (0.3.30) 
Using activerecord (3.2.0.beta) 
Using activeresource (3.2.0.beta) 
Using bcrypt-ruby (3.0.1) 
Using bundler (1.0.21) 
Using highline (1.6.2) 
Using net-ssh (2.2.1) 
Using net-scp (1.0.4) 
Using net-sftp (2.0.5) 
Using net-ssh-gateway (1.1.0) 
Using capistrano (2.9.0) 
Using coffee-script-source (1.1.2) 
Using execjs (1.2.9) 
Using coffee-script (2.2.0) 
Using rack-ssl (1.3.2) 
Using rdoc (3.11) 
Using thor (0.14.6) 
Using railties (3.2.0.beta) 
Using coffee-rails (3.2.0.beta) 
Using jquery-rails (1.0.16) 
Using mysql2 (0.3.7) 
Using rails (3.2.0.beta) 
Using sass (3.1.10) 
Using sass-rails (3.1.1.alpha.0) 
Using sqlite3 (1.3.4) 
Using uglifier (1.0.4) 
Using will_paginate (3.0.2) 
Updating .gem files in vendor/cache
Could not find activesupport-3.2.0.beta.gem for installation
edit script/creditcard.rb
credit_card = ActiveMerchant::Billing::CreditCard.new(
  number:     '4111111111111111',
  month:      '8',
  year:       '2009',
  first_name: 'Tobias',
  last_name:  'Luetke',
  verification_value:  '123' 
)
 
puts "Is #{credit_card.number} valid?  #{credit_card.valid?}"
rails runner script/creditcard.rb
Is 4111111111111111 valid?  false

26.3 HAML 25.2 rake