From ce873c757a927982f530cc28f48253177c4e6e35 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Tue, 30 Jul 2024 15:28:00 +0530
Subject: [PATCH] Possible fix for exception on direct access to local books

Cannot reproduce so not sure.

Fixes #2073972 [[Content Server] Downloaded Books page error when using Custom Book List](https://bugs.launchpad.net/calibre/+bug/2073972)
---
 src/pyj/book_list/custom_list.pyj | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/pyj/book_list/custom_list.pyj b/src/pyj/book_list/custom_list.pyj
index 0b55e6373a..080236dba7 100644
--- a/src/pyj/book_list/custom_list.pyj
+++ b/src/pyj/book_list/custom_list.pyj
@@ -62,7 +62,7 @@ def render_field(field, mi, book_id):  # {{{
         return book_id + ''
     field_metadata = library_data.field_metadata
     fm = field_metadata[field]
-    if not fm:
+    if not fm or not mi:
         return
     val = mi[field]
     if val is undefined or val is None: