From bfd083f7bad98eddde4f5016c6371ed83c2b27ac Mon Sep 17 00:00:00 2001
From: Johannes Obermair <48853629+johnnyomair@users.noreply.github.com>
Date: Tue, 17 Sep 2024 09:50:04 +0200
Subject: [PATCH] Fix optional `PageTreeReadApi` in
 `BlocksTransformerMiddlewareFactory` (v5) (#2535)

Backport of #2530 into v5.
---
 .changeset/fresh-dolls-exist.md                           | 5 +++++
 .../src/blocks/blocks-transformer-middleware.factory.ts   | 8 +++++---
 2 files changed, 10 insertions(+), 3 deletions(-)
 create mode 100644 .changeset/fresh-dolls-exist.md

diff --git a/.changeset/fresh-dolls-exist.md b/.changeset/fresh-dolls-exist.md
new file mode 100644
index 0000000000..e76215f75b
--- /dev/null
+++ b/.changeset/fresh-dolls-exist.md
@@ -0,0 +1,5 @@
+---
+"@comet/cms-api": patch
+---
+
+Fix optional `PageTreeReadApi` in `BlocksTransformerMiddlewareFactory`
diff --git a/packages/api/cms-api/src/blocks/blocks-transformer-middleware.factory.ts b/packages/api/cms-api/src/blocks/blocks-transformer-middleware.factory.ts
index 6859f20110..0e72635d2a 100644
--- a/packages/api/cms-api/src/blocks/blocks-transformer-middleware.factory.ts
+++ b/packages/api/cms-api/src/blocks/blocks-transformer-middleware.factory.ts
@@ -17,9 +17,11 @@ export class BlocksTransformerMiddlewareFactory {
                     fieldValue,
                     {
                         ...dependencies,
-                        pageTreeReadApi: (dependencies.pageTreeService as PageTreeService).createReadApi({
-                            visibility: [PageTreeNodeVisibility.Published, ...(includeInvisiblePages || [])],
-                        }),
+                        pageTreeReadApi: dependencies.pageTreeService
+                            ? (dependencies.pageTreeService as PageTreeService).createReadApi({
+                                  visibility: [PageTreeNodeVisibility.Published, ...(includeInvisiblePages || [])],
+                              })
+                            : undefined,
                     },
                     { includeInvisibleContent: includeInvisibleBlocks, previewDamUrls },
                 );