AF:
  code: AF
  name: Afghanistan

def create
  @credit_card = ActiveMerchant::Billing::CreditCard.new(params[:credit_card])
  @billing_address = Address.new(params[:address])

<% form_tag new_order_payment_path(@order), :id => 'reload_frame', :target => '_top', :method => 'get' do %>
  <%= hidden_field_tag :verification_failed, true %>
  <noscript>

<% form_tag complete_order_path(@order), :id => 'reload_frame', :target => '_top', :method => 'get' do %>
  <noscript>
    <p>Verification complete, click the button below to continue.</p>

<% form_tag(params[:acs_url], :id => '3dform') do %>
  <%= hidden_field_tag :PaReq, params[:pa_req] %>
  <%= hidden_field_tag :MD, params[:md] %>

<h2>Card Verification and Authorisation</h2>
<p>A message explaining what is happening and what is required of the user.</p>
<iframe src="<%= three_d_form_order_payment_path(@order, :acs_url => @payment.acs_url, :md => @payment.md, :pa_req => @payment.pa_req) %>" name="3diframe" width="350" height="500" frameborder="0">

def create
  @credit_card = ActiveMerchant::Billing::CreditCard.new(params[:credit_card])
  @billing_address = Address.new(params[:address])

response = gateway.three_d_complete(pa_res, md)
if response.success?
  puts "Authentication complete and purchase successfully made"

response = gateway.purchase(100, credit_card)
if response.success?
  puts "Purchase successfully made"

response = gateway.purchase(100, credit_card)
if response.success?
  puts "Purchase successfully made"

gateway = ActiveMerchant::Billing::ProtxGateway.new({
  :login => 'test',
  :password => 'password',

git fetch origin other_branch:other_branch
 * [new branch]      other_branch -> other_branch
git branch

<%= options_from_collection_for_select(
  @products,
  :id,

<%= options_for_select(
  ['Choose a size', 'small', 'medium', 'large'],
  nil,     # selected value

<%= options_from_collection_for_select(@product.sizes, :name, :id, :disabled => lambda{|size| size.out_of_stock?}) %>
 
<!-- If small and medium returned true for the method out_of_stock?, you’d get something like: -->

<%= select(:post, :category, Post::CATEGORIES, :disabled => 'private') %>
 
<!— Give's you something like —>