From 687f2aff1c9a134e508954191040c99c70d4fc13 Mon Sep 17 00:00:00 2001
From: Thomas Gelf <thomas@gelf.net>
Date: Mon, 5 Sep 2016 19:16:58 +0000
Subject: [PATCH] Settings: delete NULL-value settings

---
 library/Director/Settings.php | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/library/Director/Settings.php b/library/Director/Settings.php
index 165416d2..214b2489 100644
--- a/library/Director/Settings.php
+++ b/library/Director/Settings.php
@@ -58,6 +58,17 @@ class Settings
     {
         $db = $this->db;
 
+        if ($value === null) {
+            $updated = $db->delete(
+                'director_setting',
+                $db->quoteInto('setting_name = ?', $name)
+            );
+
+            unset($this->cache[$name]);
+
+            return $this;
+        }
+
         if ($this->getSetting($name) === $value) {
             return $this;
         }