From 7b87841573341660c5e2ecadae4a0d6418323430 Mon Sep 17 00:00:00 2001
From: eileen <emcnaughton@wikimedia.org>
Date: Tue, 9 Oct 2018 19:07:26 +0100
Subject: [PATCH] Fix payment hangs when registering a user for a paid event
 without recording payment

This is an alternative to https://github.com/civicrm/civicrm-core/pull/12888
I wasn't actually able to reproduce the issue but this solution, proposed by
Monish, seems safe & sensible
---
 CRM/Contribute/Form/Task/Status.php | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/CRM/Contribute/Form/Task/Status.php b/CRM/Contribute/Form/Task/Status.php
index ef89c4d9c940..790c5dc23370 100644
--- a/CRM/Contribute/Form/Task/Status.php
+++ b/CRM/Contribute/Form/Task/Status.php
@@ -305,11 +305,14 @@ public static function processForm($form, $params) {
   }
 
   /**
-   * @param $contributionIDs
+   * @param string $contributionIDs
    *
    * @return array
    */
   public static function &getDetails($contributionIDs) {
+    if (empty($contributionIDs)) {
+      return [];
+    }
     $query = "
 SELECT    c.id              as contribution_id,
           c.contact_id      as contact_id     ,
@@ -326,7 +329,6 @@ public static function &getDetails($contributionIDs) {
     $dao = CRM_Core_DAO::executeQuery($query,
       CRM_Core_DAO::$_nullArray
     );
-    $rows = array();
 
     while ($dao->fetch()) {
       $rows[$dao->contribution_id]['component'] = $dao->participant_id ? 'event' : 'contribute';