private function prepareItems()
    {
        $itens = array();

        if($this->_detailsTransactionByCode->getItemCount() > 0) {
            foreach ($this->_detailsTransactionByCode->getItems() as $item)
            {
                $itens[] = array(
                    'id'            => $item->getId(),
                    'description'   => $item->getDescription(),
                    'quantity'      => $item->getQuantity(),
                    'amount'        => $item->getAmount(),
                    'weight'        => $item->getWeight(),
                    'shippingCost'  => $item->getShippingCost()
                );
            }
        }
        return $itens;
    }