From c4fffbd6f72ef4a6379a4cccf7eca072abdb6cf6 Mon Sep 17 00:00:00 2001
From: tschallacka <mdibbets@yahoo.com>
Date: Fri, 9 Oct 2015 16:01:09 +0200
Subject: [PATCH] Fixed form field parsing to accept no config If a programmer
 would define a yaml like

    fields:

        shortcut:

        country:

It would fail with message

    "array_key_exists() expects parameter 2 to be array, null given" on line 275 of ..\modules\backend\classes\FormField.php

The yaml parsing returns a null. This check intercepts that null value being passed to the function and turns it into a proper array.
---
 modules/backend/classes/FormField.php | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/modules/backend/classes/FormField.php b/modules/backend/classes/FormField.php
index 4ef1aeac4..20d17eb3a 100644
--- a/modules/backend/classes/FormField.php
+++ b/modules/backend/classes/FormField.php
@@ -254,6 +254,10 @@ class FormField
      */
     protected function evalConfig($config)
     {
+        if(is_null($config)) {
+            $config = [];
+        }
+
         /*
          * Standard config:property values
          */