From ece4d3f4fbf6901678e7e08e067c12a21a7a56f4 Mon Sep 17 00:00:00 2001
From: Michael Vogel <icarus@dabo.de>
Date: Thu, 19 Jul 2018 17:05:17 +0200
Subject: [PATCH] Issue 5407: Workers didn't start anymore (#5409)

---
 include/dba.php | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/include/dba.php b/include/dba.php
index 0b5c822531..954c3a7cbb 100644
--- a/include/dba.php
+++ b/include/dba.php
@@ -247,6 +247,10 @@ class dba {
 	public static function connected() {
 		$connected = false;
 
+		if (is_null(self::$db)) {
+			return false;
+		}
+
 		switch (self::$driver) {
 			case 'pdo':
 				$r = dba::p("SELECT 1");