From b2e08c0040232e8ce3ba8571f4ae80cdafb57a41 Mon Sep 17 00:00:00 2001
From: oscarotero <oom@oscarotero.com>
Date: Sat, 27 Aug 2016 13:59:14 +0200
Subject: [PATCH] fixed empty datetime values

---
 src/Fields/Datetime.php | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/Fields/Datetime.php b/src/Fields/Datetime.php
index 02bafa1..4056809 100644
--- a/src/Fields/Datetime.php
+++ b/src/Fields/Datetime.php
@@ -14,6 +14,10 @@ class Datetime extends Field
      */
     public function dataToDatabase($data)
     {
+        if (empty($data)) {
+            return null;
+        }
+
         if (is_string($data)) {
             return date($this->format, strtotime($data));
         }