From 0bd12c8dec68226bc03a8956c9d1a37daabe1da5 Mon Sep 17 00:00:00 2001
From: Eric Callahan <arksine.code@gmail.com>
Date: Fri, 18 Feb 2022 07:06:31 -0500
Subject: [PATCH] database: don't allow sync against an empty dict

Signed-off-by:  Eric Callahan <arksine.code@gmail.com>
---
 moonraker/components/database.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/moonraker/components/database.py b/moonraker/components/database.py
index 5b3c865..24cd17e 100644
--- a/moonraker/components/database.py
+++ b/moonraker/components/database.py
@@ -484,7 +484,7 @@ class MoonrakerDatabase:
                       value: Mapping[str, DBRecord]
                       ) -> None:
         if not value:
-            return
+            raise self.server.error("Cannot sync to an empty value")
         db = self._get_db(namespace)
         new_keys = set(value.keys())
         with self.lmdb_env.begin(write=True, buffers=True, db=db) as txn: