From 387452858e089bb49f8849dd80776e6a42a684c5 Mon Sep 17 00:00:00 2001
From: Michael Mayer <michael@lastzero.net>
Date: Mon, 14 Dec 2020 20:56:33 +0100
Subject: [PATCH] Indexer: Use mutex when saving photos to avoid concurrency
 issues

---
 internal/entity/photo.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/internal/entity/photo.go b/internal/entity/photo.go
index b5698d3b9..8edc43606 100644
--- a/internal/entity/photo.go
+++ b/internal/entity/photo.go
@@ -227,6 +227,9 @@ func (m *Photo) Create() error {
 
 // Save updates an existing photo or inserts a new one.
 func (m *Photo) Save() error {
+	photoMutex.Lock()
+	defer photoMutex.Unlock()
+
 	if err := UnscopedDb().Save(m).Error; err == nil {
 		// Nothing to do.
 	} else if !strings.Contains(strings.ToLower(err.Error()), "lock") {