FIX Dont attempt to iterate over null in SiteTree::allowedChildren

silverstripe · Jan 10, 2017 · 5bba726 · 5bba726
1 parent 483cda9
commit 5bba726
Showing 1 changed file with 1 addition and 2 deletions.
diff --git a/code/model/SiteTree.php b/code/model/SiteTree.php
@@ -2695,8 +2695,7 @@ public function allowedChildren() {
 				// Otherwise, the class and all its subclasses are allowed.
 				if(substr($candidate,0,1) == '*') {
 					$allowedChildren[] = substr($candidate,1);
-				} else {
-					$subclasses = ClassInfo::subclassesFor($candidate);
+				} elseif ($subclasses = ClassInfo::subclassesFor($candidate)) {
 					foreach($subclasses as $subclass) {
 						if ($subclass == 'SiteTree_root' || singleton($subclass) instanceof HiddenClass) {
 							continue;