MDL-63785 message_airnotifier: performance improvement

moodle · Dec 10, 2018 · ab29f48 · ab29f48
1 parent cb7f6a6
commit ab29f48
Showing 1 changed file with 4 additions and 13 deletions.
diff --git a/message/output/airnotifier/classes/privacy/provider.php b/message/output/airnotifier/classes/privacy/provider.php
@@ -105,20 +105,11 @@ public static function get_users_in_context(userlist $userlist) {
             return;
         }
 
-        $params = [
-            'contextid' => $context->id,
-            'contextuser' => CONTEXT_USER,
-        ];
-
-        $sql = "SELECT ud.userid as userid
+        $sql = "SELECT ud.userid
                   FROM {message_airnotifier_devices} mad
-                  JOIN {user_devices} ud
-                       ON ud.id = mad.userdeviceid
-                  JOIN {context} ctx
-                       ON ctx.instanceid = ud.userid
-                       AND ctx.contextlevel = :contextuser
-                 WHERE ctx.id = :contextid";
-
+                  JOIN {user_devices} ud ON ud.id = mad.userdeviceid
+                 WHERE ud.userid = ?";
+        $params = [$context->instanceid];
         $userlist->add_from_sql('userid', $sql, $params);
     }