From 5fb827c17fd1730c384d9dd299e323ef9aaef5d7 Mon Sep 17 00:00:00 2001
From: "Matthew Wire (MJW Consulting)" <mjw@mjwconsult.co.uk>
Date: Thu, 14 Nov 2019 14:28:10 +1300
Subject: [PATCH] Further work to convert participant emails to multiple

---
 CRM/Contribute/BAO/Contribution.php | 38 +++++++++++++++--------------
 1 file changed, 20 insertions(+), 18 deletions(-)

diff --git a/CRM/Contribute/BAO/Contribution.php b/CRM/Contribute/BAO/Contribution.php
index 81f8392ae9b3..df16e629ec09 100644
--- a/CRM/Contribute/BAO/Contribution.php
+++ b/CRM/Contribute/BAO/Contribution.php
@@ -2816,24 +2816,22 @@ public function loadRelatedObjects(&$input, &$ids, $loadAll = FALSE) {
       // make sure event exists and is valid
       $event = new CRM_Event_BAO_Event();
       $event->id = $ids['event'];
-      if ($ids['event'] &&
-        !$event->find(TRUE)
-      ) {
+      if ($ids['event'] && !$event->find(TRUE)) {
         throw new Exception("Could not find event: " . $ids['event']);
       }
 
-      $this->_relatedObjects['event'] = &$event;
+      $this->_relatedObjects['event'] = $event;
 
-      $participant = new CRM_Event_BAO_Participant();
-      $participant->id = $ids['participant'];
-      if ($ids['participant'] &&
-        !$participant->find(TRUE)
-      ) {
-        throw new Exception("Could not find participant: " . $ids['participant']);
-      }
-      $participant->register_date = CRM_Utils_Date::isoToMysql($participant->register_date);
+      foreach ($ids['participant'] ?? [] as $participantID) {
+        $participant = new CRM_Event_BAO_Participant();
+        $participant->id = $participantID;
+        if (!$participant->find(TRUE)) {
+          throw new Exception("Could not find participant: " . $participantID);
+        }
+        $participant->register_date = CRM_Utils_Date::isoToMysql($participant->register_date);
 
-      $this->_relatedObjects['participant'] = &$participant;
+        $this->_relatedObjects['participant'][] = $participant;
+      }
 
       // get the payment processor id from event - this is inaccurate see CRM-16923
       // in future we should look at throwing an exception here rather than an dubious guess.
@@ -3129,7 +3127,9 @@ public function _gatherMessageValues($input, &$values, $ids = []) {
       }
     }
     else {
-      $values = array_merge($values, $this->loadEventMessageTemplateParams((int) $ids['event'], (int) $this->_relatedObjects['participant']->id, $this->id));
+      $values = array_merge($values,
+        $this->loadEventMessageTemplateParams((int) $ids['event'], (int) $this->_relatedObjects['participant']->id, $this->id)
+      );
     }
 
     $groupTree = CRM_Core_BAO_CustomGroup::getTree('Contribution', NULL, $this->id);
@@ -4477,7 +4477,6 @@ public static function completeOrder($input, &$ids, $objects, $transaction, $rec
       $inputContributionWhiteList[] = 'financial_type_id';
     }
 
-    $participant = CRM_Utils_Array::value('participant', $objects);
     $recurContrib = CRM_Utils_Array::value('contributionRecur', $objects);
     $recurringContributionID = (empty($recurContrib->id)) ? NULL : $recurContrib->id;
     $event = CRM_Utils_Array::value('event', $objects);
@@ -4570,9 +4569,12 @@ public static function completeOrder($input, &$ids, $objects, $transaction, $rec
           // @todo this should be set by the function that sends the mail after sending.
           $contributionParams['receipt_date'] = $changeDate;
         }
-        $participantParams['id'] = $participant->id;
-        $participantParams['status_id'] = 'Registered';
-        civicrm_api3('Participant', 'create', $participantParams);
+        foreach ($objects['participant'] as $participantObject) {
+          // Update all related participants to registered
+          $participantParams['id'] = $participantObject->id;
+          $participantParams['status_id'] = 'Registered';
+          civicrm_api3('Participant', 'create', $participantParams);
+        }
       }
     }