Fixing tracks editing

Kyoo.Common/Models/Resources/Episode.cs

@@ -27,9 +27,9 @@ namespace Kyoo.Models
 
 		public int Runtime { get; set; } //This runtime variable should be in minutes
 
-		[LoadableRelation] public virtual ICollection<MetadataID> ExternalIDs { get; set; }
+		[EditableRelation] [LoadableRelation] public virtual ICollection<MetadataID> ExternalIDs { get; set; }
 
-		[LoadableRelation] public virtual ICollection<Track> Tracks { get; set; }
+		[EditableRelation] [LoadableRelation] public virtual ICollection<Track> Tracks { get; set; }
 		
 
 		public Episode() { }

Kyoo.Common/Utility.cs

@@ -143,7 +143,7 @@ namespace Kyoo
 					? Activator.CreateInstance(property.PropertyType) 
 					: null;
 
-				if (value?.Equals(defaultValue) == false)
+				if (value?.Equals(defaultValue) == false && value != property.GetValue(first))
 					property.SetValue(first, value);
 			}
 
@@ -304,6 +304,22 @@ namespace Kyoo
 				action(i);
 		}
 		
+		public static async Task ForEachAsync<T>([CanBeNull] this IEnumerable<T> self, Func<T, Task> action)
+		{
+			if (self == null)
+				return;
+			foreach (T i in self)
+				await action(i);
+		}
+		
+		public static async Task ForEachAsync<T>([CanBeNull] this IAsyncEnumerable<T> self, Action<T> action)
+		{
+			if (self == null)
+				return;
+			await foreach (T i in self)
+				action(i);
+		}
+
 		private static MethodInfo GetMethod(Type type, BindingFlags flag, string name, Type[] generics, object[] args)
 		{
 			MethodInfo[] methods = type.GetMethods(flag | BindingFlags.Public | BindingFlags.NonPublic)

Kyoo.CommonAPI/LocalRepository.cs

@@ -44,6 +44,11 @@ namespace Kyoo.Controllers
 			return Database.Set<T>().FirstOrDefaultAsync(x => x.ID == id);
 		}
 		
+		public virtual Task<T> GetWithTracking(int id)
+		{
+			return Database.Set<T>().AsTracking().FirstOrDefaultAsync(x => x.ID == id);
+		}
+
 		public virtual Task<T> Get(string slug)
 		{
 			return Database.Set<T>().FirstOrDefaultAsync(x => x.Slug == slug);
@@ -159,7 +164,7 @@ namespace Kyoo.Controllers
 			Database.ChangeTracker.LazyLoadingEnabled = false;
 			try
 			{
-				T old = await Get(edited.ID);
+				T old = await GetWithTracking(edited.ID);
 
 				if (old == null)
 					throw new ItemNotFound($"No resource found with the ID {edited.ID}.");
@@ -180,8 +185,8 @@ namespace Kyoo.Controllers
 						await navigation.LoadAsync();
 						// TODO this may be usless for lists since the API does not return IDs but the
 						// TODO LinkEquality does not check slugs (their are lazy loaded and only the ID is available)
-						if (Utility.ResourceEquals(getter.GetClrValue(edited), getter.GetClrValue(old)))
-							navigation.Metadata.PropertyInfo.SetValue(edited, default);
+						// if (Utility.ResourceEquals(getter.GetClrValue(edited), getter.GetClrValue(old)))
+						// 	navigation.Metadata.PropertyInfo.SetValue(edited, default);
 					}
 					else
 						navigation.Metadata.PropertyInfo.SetValue(edited, default);

Kyoo/Controllers/Repositories/EpisodeRepository.cs

@@ -15,15 +15,20 @@ namespace Kyoo.Controllers
 		private readonly DatabaseContext _database;
 		private readonly IProviderRepository _providers;
 		private readonly IShowRepository _shows;
+		private readonly ITrackRepository _tracks;
 		protected override Expression<Func<Episode, object>> DefaultSort => x => x.EpisodeNumber;
 
 
-		public EpisodeRepository(DatabaseContext database, IProviderRepository providers, IShowRepository shows) 
+		public EpisodeRepository(DatabaseContext database, 
+			IProviderRepository providers,
+			IShowRepository shows,
+			ITrackRepository tracks) 
 			: base(database)
 		{
 			_database = database;
 			_providers = providers;
 			_shows = shows;
+			_tracks = tracks;
 		}
 
 
@@ -161,6 +166,14 @@ namespace Kyoo.Controllers
 
 			await base.Validate(resource);
 
+			if (resource.Tracks != null)
+			{
+				// TODO remove old values
+				resource.Tracks = await resource.Tracks
+					.SelectAsync(x => _tracks.CreateIfNotExists(x, true))
+					.ToListAsync();
+			}
+
 			if (resource.ExternalIDs != null)
 			{
 				foreach (MetadataID link in resource.ExternalIDs)
@@ -181,10 +194,10 @@ namespace Kyoo.Controllers
 				throw new ArgumentNullException(nameof(obj));
 			
 			_database.Entry(obj).State = EntityState.Deleted;
+			await obj.Tracks.ForEachAsync(x => _tracks.CreateIfNotExists(x, true));
 			if (obj.ExternalIDs != null)
 				foreach (MetadataID entry in obj.ExternalIDs)
 					_database.Entry(entry).State = EntityState.Deleted;
-			// Since Tracks & Episodes are on the same database and handled by dotnet-ef, we can't use the repository to delete them. 
 			await _database.SaveChangesAsync();
 		}
 	}

Kyoo/Controllers/Repositories/TrackRepository.cs

@@ -36,7 +36,12 @@ namespace Kyoo.Controllers
 			await _database.DisposeAsync();
 		}
 
-		public Task<Track> Get(string slug, StreamType type = StreamType.Unknown)
+		public override Task<Track> Get(string slug)
+		{
+			return Get(slug, StreamType.Unknown);
+		}
+		
+		public Task<Track> Get(string slug, StreamType type)
 		{
 			Match match = Regex.Match(slug,
 				@"(?<show>.*)-s(?<season>\d+)e(?<episode>\d+)\.(?<language>.{0,3})(?<forced>-forced)?(\..*)?");
@@ -93,6 +98,8 @@ namespace Kyoo.Controllers
 			return obj;
 		}
 		
+		
+		
 		protected override Task Validate(Track resource)
 		{
 			return Task.CompletedTask;

Kyoo/Models/DatabaseContext.cs

@@ -12,7 +12,10 @@ namespace Kyoo
 {
 	public class DatabaseContext : DbContext
 	{
-		public DatabaseContext(DbContextOptions<DatabaseContext> options) : base(options) { }
+		public DatabaseContext(DbContextOptions<DatabaseContext> options) : base(options)
+		{
+			ChangeTracker.QueryTrackingBehavior = QueryTrackingBehavior.NoTracking;
+		}
 
 		public DbSet<Library> Libraries { get; set; }
 		public DbSet<Collection> Collections { get; set; }
@@ -35,6 +38,8 @@ namespace Kyoo
 			NpgsqlConnection.GlobalTypeMapper.MapEnum<Status>();
 			NpgsqlConnection.GlobalTypeMapper.MapEnum<ItemType>();
 			NpgsqlConnection.GlobalTypeMapper.MapEnum<StreamType>();
+
+			ChangeTracker.QueryTrackingBehavior = QueryTrackingBehavior.NoTracking;
 		}
 
 		protected override void OnModelCreating(ModelBuilder modelBuilder)

Kyoo/Startup.cs

@@ -58,9 +58,9 @@ namespace Kyoo
 
 			services.AddDbContext<DatabaseContext>(options =>
 			{
-				options.UseNpgsql(_configuration.GetConnectionString("Database"));
-					// .EnableSensitiveDataLogging()
-					// .UseLoggerFactory(LoggerFactory.Create(builder => builder.AddConsole()));
+				options.UseNpgsql(_configuration.GetConnectionString("Database"))
+					.EnableSensitiveDataLogging()
+					.UseLoggerFactory(LoggerFactory.Create(builder => builder.AddConsole()));
 			}, ServiceLifetime.Transient);
 			
 			services.AddDbContext<IdentityDatabase>(options =>