Merge pull request #2845 from NightJar/pulls/4.12/undefined-index

FIX undefined index error in CMS
silverstripe · Mar 30, 2023 · 241fa3e · 241fa3e
2 parents 9907209 + e200364
commit 241fa3e
Showing 1 changed file with 5 additions and 3 deletions.
diff --git a/code/Model/SiteTree.php b/code/Model/SiteTree.php
@@ -739,13 +739,15 @@ public function getAbsoluteLiveLink($includeStageEqualsLive = true)
     /**
      * Generates a link to edit this page in the CMS.
      *
+     * Implemented here to satisfy the CMSPreviewable interface, but data is intended to be loaded via Extension
+     *
+     * @see SilverStripe\Admin\CMSEditLinkExtension
+     *
      * @return string
      */
     public function CMSEditLink()
     {
-        // This method has to be implemented here to satisfy the CMSPreviewable interface.
-        // See the actual implementation in CMSEditLinkExtension.
-        return $this->extend('CMSEditLink')[0];
+        return $this->extend('CMSEditLink')[0] ?? '';
     }
 
     /**