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limit knowledge of sqlite

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This commit is contained in:
Luke Pulverenti
2013-09-29 18:00:08 -04:00
parent 373bdf4825
commit cdfb009df8
3 changed files with 45 additions and 94 deletions
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76
MediaBrowser.Server.Implementations/Persistence/SqliteItemRepository.cs
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@@ -7,7 +7,6 @@ using MediaBrowser.Model.Serialization;
using System;
using System.Collections.Generic;
using System.Data;
using System.Data.SQLite;
using System.IO;
using System.Linq;
using System.Threading;
@@ -20,12 +19,12 @@ namespace MediaBrowser.Server.Implementations.Persistence
/// </summary>
public class SqliteItemRepository : IItemRepository
{
private SQLiteConnection _connection;
private IDbConnection _connection;
private readonly ILogger _logger;
private readonly TypeMapper _typeMapper = new TypeMapper();
/// <summary>
/// Gets the name of the repository
/// </summary>
@@ -52,15 +51,15 @@ namespace MediaBrowser.Server.Implementations.Persistence
/// <summary>
/// The _save item command
/// </summary>
private SQLiteCommand _saveItemCommand;
private IDbCommand _saveItemCommand;
private readonly string _criticReviewsPath;
private SqliteChapterRepository _chapterRepository;
private SQLiteCommand _deleteChildrenCommand;
private SQLiteCommand _saveChildrenCommand;
private IDbCommand _deleteChildrenCommand;
private IDbCommand _saveChildrenCommand;
/// <summary>
/// Initializes a new instance of the <see cref="SqliteItemRepository"/> class.
/// </summary>
@@ -104,7 +103,7 @@ namespace MediaBrowser.Server.Implementations.Persistence
public async Task Initialize()
{
var dbFile = Path.Combine(_appPaths.DataPath, "library.db");
_connection = await SqliteExtensions.ConnectToDb(dbFile).ConfigureAwait(false);
string[] queries = {
@@ -136,29 +135,20 @@ namespace MediaBrowser.Server.Implementations.Persistence
/// </summary>
private void PrepareStatements()
{
_saveItemCommand = new SQLiteCommand
{
CommandText = "replace into TypedBaseItems (guid, type, data) values (@1, @2, @3)"
};
_saveItemCommand = _connection.CreateCommand();
_saveItemCommand.CommandText = "replace into TypedBaseItems (guid, type, data) values (@1, @2, @3)";
_saveItemCommand.Parameters.Add(_saveItemCommand, "@1");
_saveItemCommand.Parameters.Add(_saveItemCommand, "@2");
_saveItemCommand.Parameters.Add(_saveItemCommand, "@3");
_saveItemCommand.Parameters.Add(new SQLiteParameter("@1"));
_saveItemCommand.Parameters.Add(new SQLiteParameter("@2"));
_saveItemCommand.Parameters.Add(new SQLiteParameter("@3"));
_deleteChildrenCommand = _connection.CreateCommand();
_deleteChildrenCommand.CommandText = "delete from ChildrenIds where ParentId=@ParentId";
_deleteChildrenCommand.Parameters.Add(_deleteChildrenCommand, "@ParentId");
_deleteChildrenCommand = new SQLiteCommand
{
CommandText = "delete from ChildrenIds where ParentId=@ParentId"
};
_deleteChildrenCommand.Parameters.Add(new SQLiteParameter("@ParentId"));
_saveChildrenCommand = new SQLiteCommand
{
CommandText = "replace into ChildrenIds (ParentId, ItemId) values (@ParentId, @ItemId)"
};
_saveChildrenCommand.Parameters.Add(new SQLiteParameter("@ParentId"));
_saveChildrenCommand.Parameters.Add(new SQLiteParameter("@ItemId"));
_saveChildrenCommand = _connection.CreateCommand();
_saveChildrenCommand.CommandText = "replace into ChildrenIds (ParentId, ItemId) values (@ParentId, @ItemId)";
_saveChildrenCommand.Parameters.Add(_saveChildrenCommand, "@ParentId");
_saveChildrenCommand.Parameters.Add(_saveChildrenCommand, "@ItemId");
}
/// <summary>
@@ -205,7 +195,7 @@ namespace MediaBrowser.Server.Implementations.Persistence
await _writeLock.WaitAsync(cancellationToken).ConfigureAwait(false);
SQLiteTransaction transaction = null;
IDbTransaction transaction = null;
try
{
@@ -215,13 +205,13 @@ namespace MediaBrowser.Server.Implementations.Persistence
{
cancellationToken.ThrowIfCancellationRequested();
_saveItemCommand.Parameters[0].Value = item.Id;
_saveItemCommand.Parameters[1].Value = item.GetType().FullName;
_saveItemCommand.Parameters[2].Value = _jsonSerializer.SerializeToBytes(item);
_saveItemCommand.GetParameter(0).Value = item.Id;
_saveItemCommand.GetParameter(1).Value = item.GetType().FullName;
_saveItemCommand.GetParameter(2).Value = _jsonSerializer.SerializeToBytes(item);
_saveItemCommand.Transaction = transaction;
await _saveItemCommand.ExecuteNonQueryAsync(cancellationToken);
_saveItemCommand.ExecuteNonQuery();
}
transaction.Commit();
@@ -274,8 +264,7 @@ namespace MediaBrowser.Server.Implementations.Persistence
using (var cmd = _connection.CreateCommand())
{
cmd.CommandText = "select type,data from TypedBaseItems where guid = @guid";
var guidParam = cmd.Parameters.Add("@guid", DbType.Guid);
guidParam.Value = id;
cmd.Parameters.Add(cmd, "@guid", DbType.Guid).Value = id;
using (var reader = cmd.ExecuteReader(CommandBehavior.SequentialAccess | CommandBehavior.SingleResult | CommandBehavior.SingleRow))
{
@@ -446,7 +435,7 @@ namespace MediaBrowser.Server.Implementations.Persistence
{
cmd.CommandText = "select ItemId from ChildrenIds where ParentId = @ParentId";
cmd.Parameters.Add("@ParentId", DbType.Guid).Value = parentId;
cmd.Parameters.Add(cmd, "@ParentId", DbType.Guid).Value = parentId;
using (var reader = cmd.ExecuteReader(CommandBehavior.SequentialAccess | CommandBehavior.SingleResult))
{
@@ -479,27 +468,28 @@ namespace MediaBrowser.Server.Implementations.Persistence
await _writeLock.WaitAsync(cancellationToken).ConfigureAwait(false);
SQLiteTransaction transaction = null;
IDbTransaction transaction = null;
try
{
transaction = _connection.BeginTransaction();
// First delete
_deleteChildrenCommand.Parameters[0].Value = parentId;
_deleteChildrenCommand.GetParameter(0).Value = parentId;
_deleteChildrenCommand.Transaction = transaction;
await _deleteChildrenCommand.ExecuteNonQueryAsync(cancellationToken);
_deleteChildrenCommand.ExecuteNonQuery();
foreach (var id in children)
{
cancellationToken.ThrowIfCancellationRequested();
_saveChildrenCommand.Parameters[0].Value = parentId;
_saveChildrenCommand.Parameters[1].Value = id;
_saveChildrenCommand.GetParameter(0).Value = parentId;
_saveChildrenCommand.GetParameter(1).Value = id;
_saveChildrenCommand.Transaction = transaction;
await _saveChildrenCommand.ExecuteNonQueryAsync(cancellationToken);
_saveChildrenCommand.ExecuteNonQuery();
}
transaction.Commit();