From 353427fa1a05788b0b093999f5498b1535bbc96f Mon Sep 17 00:00:00 2001
From: Thomas Gelf <thomas@gelf.net>
Date: Wed, 28 Oct 2015 22:24:34 +0100
Subject: [PATCH] CustomVariableNull: store to db as json

---
 library/Director/CustomVariable/CustomVariableNull.php | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/library/Director/CustomVariable/CustomVariableNull.php b/library/Director/CustomVariable/CustomVariableNull.php
index 2b190cc2..d1b28881 100644
--- a/library/Director/CustomVariable/CustomVariableNull.php
+++ b/library/Director/CustomVariable/CustomVariableNull.php
@@ -17,6 +17,11 @@ class CustomVariableNull extends CustomVariable
         return null;
     }
 
+    public function getDbFormat()
+    {
+        return 'json';
+    }
+
     public function setValue($value)
     {
         if (! is_null($value)) {