From 926a43f6d499af252569c8cb34d776b701b09d18 Mon Sep 17 00:00:00 2001
From: Matthew Wire <mjw@mjwconsult.co.uk>
Date: Fri, 27 Nov 2020 12:21:37 +0000
Subject: [PATCH] Add function processZeroAmountPayment to check/handle a zero
amount payment
---
CRM/Core/Payment/MJWTrait.php | 26 ++++++++++++++++++++++++++
1 file changed, 26 insertions(+)
diff --git a/CRM/Core/Payment/MJWTrait.php b/CRM/Core/Payment/MJWTrait.php
index c367bb5..3fe66c2 100644
--- a/CRM/Core/Payment/MJWTrait.php
+++ b/CRM/Core/Payment/MJWTrait.php
@@ -424,6 +424,32 @@ trait CRM_Core_Payment_MJWTrait {
return $this->paymentProcessorSubscriptionID;
}
+ /**
+ * In some cases a payment is still submitted via the payment processor with zero amount.
+ * See eg. https://lab.civicrm.org/extensions/stripe/-/issues/256.
+ * When you have a 0 membership option and a confirmation page.
+ * This function should be called in doPayment() before beginDoPayment()
+ *
+ * @param \Civi\Payment\PropertyBag $propertyBag
+ *
+ * @return array|false
+ */
+ protected function processZeroAmountPayment(\Civi\Payment\PropertyBag $propertyBag) {
+ // If we have a $0 amount, skip call to processor and set payment_status to Completed.
+ // https://github.com/civicrm/civicrm-core/blob/master/CRM/Core/Payment.php#L1362
+ if ($propertyBag->getAmount() == 0) {
+ return [
+ 'payment_status_id' => CRM_Core_PseudoConstant::getKey(
+ 'CRM_Contribute_BAO_Contribution',
+ 'contribution_status_id', 'Completed'
+ )
+ ];
+ }
+ else {
+ return FALSE;
+ }
+ }
+
/**
* @param \Civi\Payment\PropertyBag $propertyBag
*
--
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