From d292a8340729ba4bf632b595a1ec43ea954eb7de Mon Sep 17 00:00:00 2001
From: Jan Ptacek <jan.ptacek@gmail.com>
Date: Mon, 6 Aug 2018 12:15:41 +0200
Subject: [PATCH] Avoid undefined index: null (update action)

Avoid Notice (8): Undefined index: null [APP/Vendor/cakephp/cakephp/lib/Cake/Model/Datasource/DboSource.php, line 2180]
also discussed here: 22b0275#diff-b8a4043bec5d20830b77d240ae8fdef5R2087
fix for previous instance if same bug already merged here: cakephp#12411
(sorry for overlooking this second use-case :( )
---
 lib/Cake/Model/Datasource/DboSource.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/Cake/Model/Datasource/DboSource.php b/lib/Cake/Model/Datasource/DboSource.php
index 598af553f05..cc59edbb3cd 100644
--- a/lib/Cake/Model/Datasource/DboSource.php
+++ b/lib/Cake/Model/Datasource/DboSource.php
@@ -2177,7 +2177,7 @@ protected function _prepareUpdateFields(Model $Model, $fields, $quoteValues = tr
 			$update = $quoted . ' = ';
 
 			if ($quoteValues) {
-				$update .= $this->value($value, $Model->getColumnType($field), isset($schema[$field]) ? $schema[$field]['null'] : true);
+				$update .= $this->value($value, $Model->getColumnType($field), isset($schema[$field]['null']) ? $schema[$field]['null'] : true);
 			} elseif ($Model->getColumnType($field) === 'boolean' && (is_int($value) || is_bool($value))) {
 				$update .= $this->boolean($value, true);
 			} elseif (!$alias) {