tekin

<%= select(:post, :category, Post::CATEGORIES, :disabled => 'private') %>

<!— Give's you something like —> 

<select name="post[category]">
	<option>story</option>
	<option>joke</option>
	<option>poem</option>
	<option disabled="disabled">private</option>
</select>

tekin

<%= 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: -->

<option value=“23“ disabled=“disabled“>small</option>
<option value=“24“ disabled=“disabled“>medium</option>
<option value=“25“>large</option>
<option value=“26“>extra large</option>

tekin

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

<!-- Gives you -->

<option value="Choose a size">Please choose a size</option>
<option value="s">small</option>

tekin

<%= options_from_collection_for_select(
  @products,
  :id,
  :name,
  nil,                       # selected value(s)
  lambda{|p| !p.in_stock? }  # disabled value(s) identified with a proc 
) %>

tekin

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

# Or, in one swift command:

git checkout -t origin/other_branch

tekin

gateway = ActiveMerchant::Billing::ProtxGateway.new({
  :login => 'test',
  :password => 'password',
  :enable_3d_secure => true
})

tekin

response = gateway.purchase(100, credit_card)
if response.success?
  puts "Purchase successfully made"
else
  puts "Purchase not authorised, try again"
end

tekin

response = gateway.purchase(100, credit_card)
if response.success?
  puts "Purchase successfully made"
elsif response.three_d_secure?
  puts "Purchase requires additional 3D Authentication"
else
  puts "Purchase not authorised, try again"
end

tekin

response = gateway.three_d_complete(pa_res, md)
if response.success?
  puts "Authentication complete and purchase successfully made"
else
  puts "Purchase not authorised or authentication failed, try again"
end

tekin

def create
  @credit_card = ActiveMerchant::Billing::CreditCard.new(params[:credit_card])
  @billing_address = Address.new(params[:address])
  @payment = @order.payments.create(:credit_card => @credit_card, :address => @billing_address)
  if @payment.success?
    redirect_to complete_order_url(@order)
  elsif @payment.requires_authentication?
    # A view with an iframe from which the user is redirected to the authentication page
    render :action => 'three_d_iframe'
  else