title: Magento How can I save a new attribute in the order item table
body: <p>I've created a new attribute 'Envases' on the sales_flat_order_item. I've created the display control in the cart page, but I don't know how to save it on the data base.</p>
  
  <p><img src="https://i.stack.imgur.com/xca37.png" alt="enter image description here"></p>