Method getColumns() may return null

Ben Batschelet · Ben Batschelet · commit ced6573b6113 · 2018-03-19T11:15:51.000-05:00
diff --git a/app/code/Magento/Backend/view/adminhtml/templates/widget/grid.phtml b/app/code/Magento/Backend/view/adminhtml/templates/widget/grid.phtml
@@ -19,7 +19,7 @@
  *
  */
 /* @var $block \Magento\Backend\Block\Widget\Grid */
-$numColumns = sizeof($block->getColumns());
+$numColumns = !is_null($block->getColumns()) ? sizeof($block->getColumns()) : 0;
 ?>
 <?php if ($block->getCollection()): ?>
 

Original file line number	Diff line number	Diff line change
`@@ -19,7 +19,7 @@`
`19`	`19`	`*`
`20`	`20`	`*/`
`21`	`21`	`/* @var $block \Magento\Backend\Block\Widget\Grid */`
`22`		`-$numColumns = sizeof($block->getColumns());`
	`22`	`+$numColumns = !is_null($block->getColumns()) ? sizeof($block->getColumns()) : 0;`
`23`	`23`	`?>`
`24`	`24`	`<?php if ($block->getCollection()): ?>`
`25`	`25`