我怎樣才能發票ID給在Magento

Question

的$支付對象鑑於此功能在Magento：

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

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

我怎樣才能得到發票或發票ID？

Answer 1

的Mage_Sales_Model_Order有像hasInvoices()和getInvoiceCollection()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(); 
       // ... 
      } 
     } 

}