From 4b805b1653ed8fdf8155428ed15718aac20a4878 Mon Sep 17 00:00:00 2001
From: Anh <anhtnt@elightup.com>
Date: Mon, 26 Mar 2018 15:12:25 +0700
Subject: [PATCH] Do not save fields without id. Fix for custom table
 extension.

---
 inc/field.php | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/inc/field.php b/inc/field.php
index d0fc64bd7..e5b4bef2e 100644
--- a/inc/field.php
+++ b/inc/field.php
@@ -286,6 +286,9 @@ public static function value( $new, $old, $post_id, $field ) {
 	 * @param array $field   The field parameters.
 	 */
 	public static function save( $new, $old, $post_id, $field ) {
+		if ( empty( $field['id'] ) ) {
+			return;
+		}
 		$name = $field['id'];
 		$storage = $field['storage'];