getOwnerPage can return a boolean.

silverstripe · Aug 10, 2016 · 2acad2f · 2acad2f
1 parent 863968e
commit 2acad2f
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/code/models/BaseElement.php b/code/models/BaseElement.php
@@ -103,7 +103,7 @@ public function getCMSFields()
 
 
         if($virtual = $fields->dataFieldByName('VirtualClones')) {
-            if($this->Parent()->exists() && $this->Parent()->getOwnerPage()->exists()) {
+            if($this->Parent() && $this->Parent()->exists() && $this->Parent()->getOwnerPage() && $this->Parent()->getOwnerPage()->exists()) {
                 $tab = $fields->findOrMakeTab('Root.VirtualClones');
                 $tab->setTitle(_t('BaseElement.VIRTUALTABTITLE', 'Linked To'));