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Initial EF Core commit

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This commit is contained in:
TocoToucan
2017-10-04 22:52:12 +03:00
parent de840a5c9e
commit 6a4198d0d6
93 changed files with 730 additions and 708 deletions
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79
osu.Game/Database/DatabaseBackedStore.cs
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@ -2,27 +2,23 @@
// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using Microsoft.EntityFrameworkCore;
using osu.Framework.Logging;
using osu.Framework.Platform;
using SQLite.Net;
using SQLiteNetExtensions.Extensions;
namespace osu.Game.Database
{
public abstract class DatabaseBackedStore
{
protected readonly Storage Storage;
protected readonly SQLiteConnection Connection;
protected readonly OsuDbContext Connection;
protected virtual int StoreVersion => 1;
protected DatabaseBackedStore(SQLiteConnection connection, Storage storage = null)
protected DatabaseBackedStore(OsuDbContext connection, Storage storage = null)
{
Storage = storage;
Connection = connection;
Connection.Database.SetCommandTimeout(new TimeSpan(TimeSpan.TicksPerSecond * 10));
try
{
@ -33,36 +29,6 @@ namespace osu.Game.Database
Logger.Error(e, $@"Failed to initialise the {GetType()}! Trying again with a clean database...");
Prepare(true);
}
checkMigrations();
}
private void checkMigrations()
{
var storeName = GetType().Name;
var reportedVersion = Connection.Table<StoreVersion>().Where(s => s.StoreName == storeName).FirstOrDefault() ?? new StoreVersion
{
StoreName = storeName,
Version = 0
};
if (reportedVersion.Version != StoreVersion)
PerformMigration(reportedVersion.Version, reportedVersion.Version = StoreVersion);
Connection.InsertOrReplace(reportedVersion);
StartupTasks();
}
/// <summary>
/// Called when the database version of this store doesn't match the local version.
/// Any manual migration operations should be performed in this.
/// </summary>
/// <param name="currentVersion">The current store version. This will be zero on a fresh database initialisation.</param>
/// <param name="targetVersion">The target version which we are migrating to (equal to the current <see cref="StoreVersion"/>).</param>
protected virtual void PerformMigration(int currentVersion, int targetVersion)
{
}
/// <summary>
@ -83,43 +49,6 @@ namespace osu.Game.Database
/// </summary>
public void Reset() => Prepare(true);
public TableQuery<T> Query<T>(Expression<Func<T, bool>> filter = null) where T : class
{
checkType(typeof(T));
var query = Connection.Table<T>();
if (filter != null)
query = query.Where(filter);
return query;
}
/// <summary>
/// Query and populate results.
/// </summary>
/// <param name="filter">An filter to refine results.</param>
/// <returns></returns>
public List<T> QueryAndPopulate<T>(Expression<Func<T, bool>> filter)
where T : class
{
checkType(typeof(T));
return Connection.GetAllWithChildren(filter, true);
}
/// <summary>
/// Populate a database-backed item.
/// </summary>
/// <param name="item"></param>
/// <param name="recursive">Whether population should recurse beyond a single level.</param>
public void Populate<T>(T item, bool recursive = true)
{
checkType(item.GetType());
Connection.GetChildren(item, recursive);
}
private void checkType(Type type)
{
if (!ValidTypes.Contains(type))