BUGFIX: Preventing an exception when there are no nodes for sorting

jobee · jobee · commit 86ac31cc159a · 2022-04-21T20:02:59.000+02:00
diff --git a/Classes/Eel/FlowQueryOperations/SortDataSourceRecursiveByIndexOperation.php b/Classes/Eel/FlowQueryOperations/SortDataSourceRecursiveByIndexOperation.php
@@ -36,7 +36,7 @@ class SortDataSourceRecursiveByIndexOperation extends AbstractOperation
      */
     public function canEvaluate($context)
     {
-        return (isset($context[0]) && ($context[0] instanceof NodeInterface));
+        return count($context) === 0 || (is_array($context) === true && (current($context) instanceof NodeInterface));
     }
 
     /**

Original file line number	Diff line number	Diff line change
`@@ -36,7 +36,7 @@ class SortDataSourceRecursiveByIndexOperation extends AbstractOperation`
`36`	`36`	`*/`
`37`	`37`	`public function canEvaluate($context)`
`38`	`38`	`{`
`39`		`- return (isset($context[0]) && ($context[0] instanceof NodeInterface));`
	`39`	`+ return count($context) === 0 \|\| (is_array($context) === true && (current($context) instanceof NodeInterface));`
`40`	`40`	`}`
`41`	`41`
`42`	`42`	`/**`