如何在magento中给出$ payment对象的发票ID

Question

在Magento中有这个功能：

public function capture(Varien_Object $payment, $amount)
{
      $order = $payment->getOrder();
      $order_id = $order->getId();

      $invoice = ????
      $invoice_id = $invoice->getId();
}

如何获取发票或发票ID？

Answer 1

Mage_Sales_Model_Order包含hasInvoices()和getInvoiceCollection()等方法：

public function capture(Varien_Object $payment, $amount)
{
      $order = $payment->getOrder();
      $order_id = $order->getId();

      if ($order->hasInvoices()) {
          $oInvoiceCollection = $order->getInvoiceCollection();
          foreach ($oInvoiceCollection as $oInvoice) {
              $invoice_id = $oInvoice->getId();
              // ...
          }
      }

}