CRM-16477: Added backwards compatibility for report instances pre-dating 4.5.

diff --git a/CRM/Report/Form/Event/Summary.php b/CRM/Report/Form/Event/Summary.php
index b27c8b69b07f4b6d03ee47b7db04db4013dc5fd6..fde7c4a8223fa6436433a4bdd42717ba13dd0a12 100644 (file)
--- a/CRM/Report/Form/Event/Summary.php
+++ b/CRM/Report/Form/Event/Summary.php
@@ -162,7 +162,8 @@ class CRM_Report_Form_Event_Summary extends CRM_Report_Form_Event {
             }
           }
           if (!empty($this->_params['id_value'])) {
-            $this->_participantWhere = " AND civicrm_participant.event_id IN ( {$this->_params['id_value']} ) ";
+            $id_value = is_array($this->_params['id_value']) ? implode(',', $this->_params['id_value']) : $this->_params['id_value'];
+            $this->_participantWhere = " AND civicrm_participant.event_id IN ( {$id_value} ) ";
           }
 
           if (!empty($clause)) {