From d59dff1fb4781aa7a7d8a3b4b1212695cee00b7f Mon Sep 17 00:00:00 2001
From: Charles Haley <cbhaley@i.wont.say.com>
Date: Sun, 6 Jan 2019 17:19:30 +0000
Subject: [PATCH] Fix /opds not respecting the 'advanced' displayed_fields
 option (Restrict displayed user-defined fields).

---
 src/calibre/srv/opds.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/calibre/srv/opds.py b/src/calibre/srv/opds.py
index 903a1fd54b..c5320319cf 100644
--- a/src/calibre/srv/opds.py
+++ b/src/calibre/srv/opds.py
@@ -492,6 +492,8 @@ def opds(ctx, rd):
             return x
 
     for category in sorted(categories, key=lambda x: sort_key(getter(x))):
+        if not rc.ctx.is_field_displayable(category):
+            continue
         if len(categories[category]) == 0:
             continue
         if category in ('formats', 'identifiers'):