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@ -23,6 +23,8 @@ namespace MediaBrowser.Server.Implementations.Persistence
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private SQLiteConnection _connection;
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private readonly ILogger _logger;
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private TypeMapper _typeMapper = new TypeMapper();
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/// <summary>
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/// Gets the name of the repository
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@ -103,11 +105,11 @@ namespace MediaBrowser.Server.Implementations.Persistence
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string[] queries = {
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"create table if not exists baseitems (guid GUID primary key, data BLOB)",
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"create index if not exists idx_baseitems on baseitems(guid)",
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"create table if not exists TypedBaseItems (guid GUID primary key, type TEXT, data BLOB)",
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"create index if not exists idx_TypedBaseItems on baseitems(guid)",
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"create table if not exists ChildDefinitions (ParentId GUID, ItemId GUID, Type TEXT, PRIMARY KEY (ParentId, ItemId))",
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"create index if not exists idx_ChildDefinitions on ChildDefinitions(ParentId,ItemId)",
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"create table if not exists ChildrenIds (ParentId GUID, ItemId GUID, PRIMARY KEY (ParentId, ItemId))",
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"create index if not exists idx_ChildrenIds on ChildrenIds(ParentId,ItemId)",
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//pragmas
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"pragma temp_store = memory"
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@ -132,27 +134,27 @@ namespace MediaBrowser.Server.Implementations.Persistence
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{
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_saveItemCommand = new SQLiteCommand
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{
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CommandText = "replace into baseitems (guid, data) values (@1, @2)"
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CommandText = "replace into TypedBaseItems (guid, type, data) values (@1, @2, @3)"
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};
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_saveItemCommand.Parameters.Add(new SQLiteParameter("@1"));
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_saveItemCommand.Parameters.Add(new SQLiteParameter("@2"));
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_saveItemCommand.Parameters.Add(new SQLiteParameter("@3"));
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_deleteChildrenCommand = new SQLiteCommand
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{
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CommandText = "delete from ChildDefinitions where ParentId=@ParentId"
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CommandText = "delete from ChildrenIds where ParentId=@ParentId"
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};
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_deleteChildrenCommand.Parameters.Add(new SQLiteParameter("@ParentId"));
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_saveChildrenCommand = new SQLiteCommand
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{
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CommandText = "replace into ChildDefinitions (ParentId, ItemId, Type) values (@ParentId, @ItemId, @Type)"
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CommandText = "replace into ChildrenIds (ParentId, ItemId) values (@ParentId, @ItemId)"
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};
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_saveChildrenCommand.Parameters.Add(new SQLiteParameter("@ParentId"));
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_saveChildrenCommand.Parameters.Add(new SQLiteParameter("@ItemId"));
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_saveChildrenCommand.Parameters.Add(new SQLiteParameter("@Type"));
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}
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/// <summary>
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@ -210,7 +212,8 @@ namespace MediaBrowser.Server.Implementations.Persistence
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cancellationToken.ThrowIfCancellationRequested();
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_saveItemCommand.Parameters[0].Value = item.Id;
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_saveItemCommand.Parameters[1].Value = _jsonSerializer.SerializeToBytes(item);
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_saveItemCommand.Parameters[1].Value = item.GetType().FullName;
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_saveItemCommand.Parameters[2].Value = _jsonSerializer.SerializeToBytes(item);
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_saveItemCommand.Transaction = transaction;
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@ -254,11 +257,10 @@ namespace MediaBrowser.Server.Implementations.Persistence
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/// Internal retrieve from items or users table
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/// </summary>
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/// <param name="id">The id.</param>
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/// <param name="type">The type.</param>
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/// <returns>BaseItem.</returns>
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/// <exception cref="System.ArgumentNullException">id</exception>
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/// <exception cref="System.ArgumentException"></exception>
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public BaseItem RetrieveItem(Guid id, Type type)
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public BaseItem RetrieveItem(Guid id)
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{
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if (id == Guid.Empty)
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{
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@ -267,7 +269,7 @@ namespace MediaBrowser.Server.Implementations.Persistence
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using (var cmd = _connection.CreateCommand())
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{
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cmd.CommandText = "select data from baseitems where guid = @guid";
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cmd.CommandText = "select type,data from TypedBaseItems where guid = @guid";
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var guidParam = cmd.Parameters.Add("@guid", DbType.Guid);
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guidParam.Value = id;
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@ -275,7 +277,18 @@ namespace MediaBrowser.Server.Implementations.Persistence
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{
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if (reader.Read())
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{
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using (var stream = reader.GetMemoryStream(0))
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var typeString = reader.GetString(0);
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var type = _typeMapper.GetType(typeString);
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if (type == null)
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{
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_logger.Debug("Unknown type {0}", typeString);
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return null;
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}
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using (var stream = reader.GetMemoryStream(1))
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{
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return _jsonSerializer.DeserializeFromStream(stream, type) as BaseItem;
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}
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@ -424,7 +437,7 @@ namespace MediaBrowser.Server.Implementations.Persistence
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}
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}
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public IEnumerable<ChildDefinition> GetChildren(Guid parentId)
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public IEnumerable<Guid> GetChildren(Guid parentId)
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{
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if (parentId == Guid.Empty)
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{
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@ -433,7 +446,7 @@ namespace MediaBrowser.Server.Implementations.Persistence
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using (var cmd = _connection.CreateCommand())
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{
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cmd.CommandText = "select ItemId,Type from ChildDefinitions where ParentId = @ParentId";
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cmd.CommandText = "select ItemId from ChildrenIds where ParentId = @ParentId";
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cmd.Parameters.Add("@ParentId", DbType.Guid).Value = parentId;
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@ -441,17 +454,13 @@ namespace MediaBrowser.Server.Implementations.Persistence
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{
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while (reader.Read())
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{
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yield return new ChildDefinition
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{
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ItemId = reader.GetGuid(0),
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Type = reader.GetString(1)
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};
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yield return reader.GetGuid(0);
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}
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}
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}
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}
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public async Task SaveChildren(Guid parentId, IEnumerable<ChildDefinition> children, CancellationToken cancellationToken)
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public async Task SaveChildren(Guid parentId, IEnumerable<Guid> children, CancellationToken cancellationToken)
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{
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if (parentId == Guid.Empty)
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{
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@ -483,13 +492,12 @@ namespace MediaBrowser.Server.Implementations.Persistence
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_deleteChildrenCommand.Transaction = transaction;
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await _deleteChildrenCommand.ExecuteNonQueryAsync(cancellationToken);
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foreach (var chapter in children)
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foreach (var id in children)
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{
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cancellationToken.ThrowIfCancellationRequested();
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_saveChildrenCommand.Parameters[0].Value = parentId;
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_saveChildrenCommand.Parameters[1].Value = chapter.ItemId;
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_saveChildrenCommand.Parameters[2].Value = chapter.Type;
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_saveChildrenCommand.Parameters[1].Value = id;
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_saveChildrenCommand.Transaction = transaction;
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