/**
  * Read a order item from the database.
  *
  * @since 2.7.0
  * @param WC_Order_Item $item
  */
 public function read(&$item)
 {
     global $wpdb;
     $item->set_defaults();
     $data = $wpdb->get_row($wpdb->prepare("SELECT * FROM {$wpdb->prefix}woocommerce_order_items WHERE order_item_id = %d LIMIT 1;", $item->get_id()));
     if (!$data) {
         throw new Exception(__('Invalid order item.', 'woocommerce'));
     }
     $item->set_props(array('order_id' => $data->order_id, 'name' => $data->order_item_name, 'type' => $data->order_item_type));
     $item->read_meta_data();
     $item->set_object_read(true);
 }