From ae76eca5648525abf580b4dfa6ebc78eb69fd423 Mon Sep 17 00:00:00 2001
From: Dean Herbert <pe@ppy.sh>
Date: Thu, 7 Jan 2021 15:41:29 +0900
Subject: [PATCH] Add basic realm migration support

---
 osu.Game/Database/RealmContextFactory.cs | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/osu.Game/Database/RealmContextFactory.cs b/osu.Game/Database/RealmContextFactory.cs
index c37068947e..b918eb0e78 100644
--- a/osu.Game/Database/RealmContextFactory.cs
+++ b/osu.Game/Database/RealmContextFactory.cs
@@ -43,6 +43,15 @@ public RealmContextFactory(Storage storage, Scheduler scheduler)
             this.storage = storage;
             this.scheduler = scheduler;
             recreateThreadContexts();
+
+            using (CreateContext())
+            {
+                // ensure our schema is up-to-date and migrated.
+            }
+        }
+
+        private void onMigration(Migration migration, ulong oldschemaversion)
+        {
         }
 
         private static readonly GlobalStatistic<int> reads = GlobalStatistics.Get<int>("Realm", "Get (Read)");
@@ -158,7 +167,11 @@ private void recreateThreadContexts()
         protected virtual Realm CreateContext()
         {
             contexts.Value++;
-            return Realm.GetInstance(new RealmConfiguration(storage.GetFullPath($"{database_name}.realm", true)));
+            return Realm.GetInstance(new RealmConfiguration(storage.GetFullPath($"{database_name}.realm", true))
+            {
+                SchemaVersion = 2,
+                MigrationCallback = onMigration
+            });
         }
 
         public void ResetDatabase()