From be06e5076c0552251f72d8b59cadd6067e16c377 Mon Sep 17 00:00:00 2001
From: Coleman Watts <coleman@civicrm.org>
Date: Tue, 13 Jan 2015 12:31:53 -0500
Subject: [PATCH] Add invoice_id as default param to api.contribution.transact

https://www.drupal.org/node/2402251
---
 api/v3/Contribution.php | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/api/v3/Contribution.php b/api/v3/Contribution.php
index 42712ee6df..d574017e23 100644
--- a/api/v3/Contribution.php
+++ b/api/v3/Contribution.php
@@ -304,6 +304,9 @@ function civicrm_api3_contribution_transact($params) {
     $params['invoiceID'] = $params['invoice_id'];
   }
 
+  // Some payment processors expect a unique invoice_id - generate one if not supplied
+  $params['invoice_id'] = CRM_Utils_Array::value('invoice_id', $params, md5(uniqid(rand(), TRUE)));
+
   $paymentProcessor = CRM_Financial_BAO_PaymentProcessor::getPayment($params['payment_processor'], $params['payment_processor_mode']);
   if (civicrm_error($paymentProcessor)) {
     return $paymentProcessor;
-- 
2.25.1