Initial commit.

src/core/scopedtransaction.cpp

@@ -0,0 +1,50 @@
+/*
+ * Strawberry Music Player
+ * This file was part of Clementine.
+ * Copyright 2010, David Sansome <me@davidsansome.com>
+ *
+ * Strawberry is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Strawberry is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Strawberry.  If not, see <http://www.gnu.org/licenses/>.
+ * 
+ */
+
+#include "config.h"
+
+#include "scopedtransaction.h"
+#include "core/logging.h"
+
+#include <QSqlDatabase>
+#include <QtDebug>
+
+ScopedTransaction::ScopedTransaction(QSqlDatabase* db)
+    : db_(db), pending_(true) {
+  db->transaction();
+}
+
+ScopedTransaction::~ScopedTransaction() {
+  if (pending_) {
+    qLog(Warning) << "Rolling back transaction";
+    db_->rollback();
+  }
+}
+
+void ScopedTransaction::Commit() {
+  if (!pending_) {
+    qLog(Warning) << "Tried to commit a ScopedTransaction twice";
+    return;
+  }
+
+  db_->commit();
+  pending_ = false;
+}
+