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Code Issues Releases Wiki Activity

Add support for migration of skins from EF to Realm

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This commit is contained in:
Dean Herbert 2021-11-30 15:17:26 +09:00
parent 6bf9327228
commit a943089be2
1 changed files with 56 additions and 0 deletions
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56
osu.Game/Database/RealmContextFactory.cs
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@ -5,6 +5,7 @@ using System;
using System.Linq;
using System.Reflection;
using System.Threading;
using Microsoft.EntityFrameworkCore;
using osu.Framework.Allocation;
using osu.Framework.Development;
using osu.Framework.Input.Bindings;
@ -205,6 +206,61 @@ namespace osu.Game.Database
return;
using (var db = efContextFactory.GetForWrite())
{
migrateSettings(db);
migrateSkins(db);
}
void migrateSkins(DatabaseWriteUsage db)
{
// migrate ruleset settings. can be removed 20220530.
var existingSkins = db.Context.SkinInfo
.Include(s => s.Files)
.ThenInclude(f => f.FileInfo);
// previous entries in EF are removed post migration.
if (!existingSkins.Any())
return;
using (var realm = CreateContext())
using (var transaction = realm.BeginWrite())
{
// only migrate data if the realm database is empty.
if (!realm.All<SkinInfo>().Any(s => !s.Protected))
{
foreach (var skin in existingSkins)
{
var realmSkin = new SkinInfo
{
Name = skin.Name,
Creator = skin.Creator,
Hash = skin.Hash,
Protected = false,
InstantiationInfo = skin.InstantiationInfo,
};
foreach (var file in skin.Files)
{
var realmFile = realm.Find<RealmFile>(file.FileInfo.Hash);
if (realmFile == null)
realm.Add(realmFile = new RealmFile { Hash = file.FileInfo.Hash });
realmSkin.Files.Add(new RealmNamedFileUsage(realmFile, file.Filename));
}
realm.Add(realmSkin);
}
}
db.Context.RemoveRange(existingSkins);
// Intentionally don't clean up the files, so they don't get purged by EF.
transaction.Commit();
}
}
void migrateSettings(DatabaseWriteUsage db)
{
// migrate ruleset settings. can be removed 20220315.
var existingSettings = db.Context.DatabasedSetting;