From ada5b1a0cc08c467a402bafb7bb97f6a8cb67072 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lu=C3=ADs=20Silva?= <lms@eurotux.com>
Date: Tue, 6 Mar 2018 15:27:29 +0000
Subject: [PATCH] Allow file field not required

---
 src/Fields/FileField.php | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/Fields/FileField.php b/src/Fields/FileField.php
index 8de5938..251745b 100644
--- a/src/Fields/FileField.php
+++ b/src/Fields/FileField.php
@@ -31,7 +31,10 @@ public function __construct(array $args = array())
 
     public function validate($value)
     {
-        if (0 == $value->size && $this->required) {
+        if (is_null($value) && !$this->required) {
+            return;
+        }
+        if (is_null($value) && $this->required || 0 == $value->size && $this->required) {
             throw new ValidationError($this->error_messages['required'], 'required');
         }
 
@@ -51,6 +54,9 @@ public function validate($value)
 
     public function toNative($value)
     {
+        if (is_null($value)) {
+            return null;
+        }
         if (!is_array($value)) {
             throw new ValidationError(msg("INVALID_FILE"), 'invalid');
         }