From 8481c294fe7444f546e55679bdf8b65a36d4bea8 Mon Sep 17 00:00:00 2001
From: Vladimir Malik <vovin.vm@gmail.com>
Date: Sat, 14 Sep 2024 14:59:41 +0200
Subject: [PATCH] Checking if children is defined: for case if all custom
 views've been removed.

---
 src/Resources/public/js/pimcore/perspective/view.js | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/Resources/public/js/pimcore/perspective/view.js b/src/Resources/public/js/pimcore/perspective/view.js
index 53f412a..e13a133 100644
--- a/src/Resources/public/js/pimcore/perspective/view.js
+++ b/src/Resources/public/js/pimcore/perspective/view.js
@@ -121,9 +121,11 @@ pimcore.bundle.perspectiveeditor.ViewEditor = class {
                     disabled: !pimcore.settings['custom-views-writeable'],
                     handler: function(){
                         const serializedViews = this.viewTreeStore.getRoot().serialize();
-                        for (let child of serializedViews.children) {
-                            if (child.config.classes && Array.isArray(child.config.classes)) {
-                                child.config.classes = child.config.classes.join(',');
+                        if (serializedViews.children !== undefined) {
+                            for (let child of serializedViews.children) {
+                                if (child.config.classes && Array.isArray(child.config.classes)) {
+                                    child.config.classes = child.config.classes.join(',');
+                                }
                             }
                         }
                         Ext.Ajax.request({