title: Get a sale rule coupons
body: <p>I've got a Shopping Cart Price Rule with coupons and I need to retrieve these coupons in my code.</p>
  
  <p>This is my Observer but it doesn't work :/</p>
  
  <pre><code>$promo = Mage::getModel('salesrule/rule')-&gt;load(1);
  $coupons = $promo-&gt;getCoupons();
  
  foreach($coupons as $c)
  {
      die($c);
  }
  </code></pre>
  
  <p>Thanks in advance :)</p>