Fixed issue with event participant count field (do not count deleted contacts).

CHANGELOG.md

 # Version 1.52 (not yet released)
 
-
+* Fixed issue with event participant count field (do not count deleted contacts).
 
 # Version 1.51
 

Civi/DataProcessor/FieldOutputHandler/EventParticipantsCountFieldOutputHandler.php

@@ -75,7 +75,7 @@ class EventParticipantsCountFieldOutputHandler extends AbstractSimpleFieldOutput
         SELECT count(*) as `total`
         FROM `civicrm_contact` `c`
         INNER JOIN `civicrm_participant` `p` ON `p`.`contact_id` = `c`.`id`
-        WHERE `p`.`event_id` = %1";
+        WHERE `p`.`event_id` = %1 AND `c`.`is_deleted` = '0'";
       $participantsSqlParams[1] = array($event_id, 'Integer');
       if (count($this->role_ids)) {
         $participantsSql .= " AND `p`.`role_id` IN (".implode(', ', $this->role_ids).")";
@@ -96,12 +96,12 @@ class EventParticipantsCountFieldOutputHandler extends AbstractSimpleFieldOutput
         'event' => $event_id,
       ];
       if (count($this->role_ids) == 1) {
-        $urlQueryParams['role'] = implode(', ', $this->role_ids);
+        $urlQueryParams['role'] = implode(',', $this->role_ids);
       } elseif (count($this->role_ids) > 1) {
-        $urlQueryParams['role'] = 'true';
+        $urlQueryParams['participant_role_id'] = implode(',', $this->role_ids);
       }
       if (count($this->status_ids)) {
-        $urlQueryParams['participant_status_id'] = implode(', ', $this->status_ids);
+        $urlQueryParams['participant_status_id'] = implode(',', $this->status_ids);
       }
       $url = \CRM_Utils_System::url('civicrm/event/search', $urlQueryParams);
       $output->setHtmlOutput('<a href="' . $url .'">'.$total.'</a>');

templates/CRM/Dataprocessor/Form/Field/Configuration/EventParticipantsCountFieldOutputHandler.tpl

@@ -19,4 +19,9 @@
     <div class="content">{$form.show_as_link.html}</div>
     <div class="clear"></div>
   </div>
+  <div class="crm-section">
+    <div class="label"></div>
+    <div class="content"><p class="description">{ts 1=https://lab.civicrm.org/partners/civicoop/snj/snjfixparticipantsearch}When you have selected show link to manage participant you also might need to install <a href="%1">SNJ Fix for Participant Search Extension</a>{/ts}</p></div>
+    <div class="clear"></div>
+  </div>
 {/crmScope}