public void PerformRead(Action <T> perform)
{
if (!IsManaged)
{
perform(data);
return;
}
using (var realm = realmFactory.CreateContext())
perform(realm.Find <T>(ID));
}
private void migrateSkins(DatabaseWriteUsage db)
{
// can be removed 20220530.
var existingSkins = db.Context.SkinInfo
.Include(s => s.Files)
.ThenInclude(f => f.FileInfo)
.ToList();
// previous entries in EF are removed post migration.
if (!existingSkins.Any())
{
return;
}
var userSkinChoice = config.GetBindable <string>(OsuSetting.Skin);
int.TryParse(userSkinChoice.Value, out int userSkinInt);
switch (userSkinInt)
{
case EFSkinInfo.DEFAULT_SKIN:
userSkinChoice.Value = SkinInfo.DEFAULT_SKIN.ToString();
break;
case EFSkinInfo.CLASSIC_SKIN:
userSkinChoice.Value = SkinInfo.CLASSIC_SKIN.ToString();
break;
}
using (var realm = realmContextFactory.CreateContext())
using (var transaction = realm.BeginWrite())
{
// only migrate data if the realm database is empty.
// note that this cannot be written as: `realm.All<SkinInfo>().All(s => s.Protected)`, because realm does not support `.All()`.
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);
if (skin.ID == userSkinInt)
{
userSkinChoice.Value = realmSkin.ID.ToString();
}
}
}
db.Context.RemoveRange(existingSkins);
// Intentionally don't clean up the files, so they don't get purged by EF.
transaction.Commit();
}
}
