From 573ddcbbd014c0c91bf24871a0edc7d4f79a6152 Mon Sep 17 00:00:00 2001
From: Guo Xiang Tan <tgx_world@hotmail.com>
Date: Wed, 24 Apr 2019 13:59:23 +0800
Subject: [PATCH] Disable migrate_to_new_scheme once there is nothing to
 migrate.

---
 app/models/upload.rb | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/app/models/upload.rb b/app/models/upload.rb
index 5c711a7c511..303f192465a 100644
--- a/app/models/upload.rb
+++ b/app/models/upload.rb
@@ -212,6 +212,12 @@ class Upload < ActiveRecord::Base
       scope = Upload.by_users.where("url NOT LIKE '%/original/_X/%' AND url LIKE '%/uploads/#{RailsMultisite::ConnectionManagement.current_db}%'").order(id: :desc)
 
       scope = scope.limit(limit) if limit
+
+      if scope.count == 0
+        SiteSetting.migrate_to_new_scheme = false
+        return problems
+      end
+
       remap_scope = nil
 
       scope.each do |upload|