Icingadb/CustomVarRenderer: Identify custom properties for services c…

…reated for host templates

library/Director/ProvidedHook/Icingadb/CustomVarRenderer.php

@@ -8,6 +8,7 @@
 use Icinga\Module\Director\Db;
 use Icinga\Module\Director\Objects\IcingaHost;
 use Icinga\Module\Director\Objects\IcingaService;
+use Icinga\Module\Director\Objects\IcingaTemplateResolver;
 use Icinga\Module\Director\Web\Form\IcingaObjectFieldLoader;
 use Icinga\Module\Icingadb\Hook\CustomVarRendererHook;
 use Icinga\Module\Icingadb\Model\Host;
@@ -73,10 +74,32 @@ public function prefetchForObject(Model $object): bool
         try {
             $directorHostObj = IcingaHost::load($host->name, $db);
             if ($service !== null) {
-                $directorServiceObj = IcingaService::load([
+                $directorServiceObj = IcingaService::loadOptional([
                     'host_id'     => $directorHostObj->get('id'),
                     'object_name' => $service->name
                 ], $db);
+
+                if ($directorServiceObj === null) {
+                    $templateResolver =  new IcingaTemplateResolver($directorHostObj);
+
+                    $parents = $templateResolver->listParentIds();
+
+                    $query = $db->getDbAdapter()->select()->from('icinga_service')
+                        ->where('object_name = ?', $service->name)
+                        ->where('host_id IN (?)', $parents);
+
+                    $directorServices = IcingaService::loadAll(
+                        $db,
+                        $query,
+                        'object_name'
+                    );
+
+                    $directorServiceObj = current($directorServices);
+
+                    if (! $directorServiceObj) {
+                        return false;
+                    }
+                }
             }
         } catch (NotFoundError $_) {
             return false;