From dfcdc09cee5f5d1d1075f42aab1baff4bb635382 Mon Sep 17 00:00:00 2001
From: Christian Muehlhaeuser <muesli@gmail.com>
Date: Thu, 16 May 2013 11:29:40 +0200
Subject: [PATCH] * Added DbCmd_LoadTrackAttributes.

---
 .../DatabaseCommand_LoadTrackAttributes.cpp   | 55 ++++++++++++
 .../DatabaseCommand_LoadTrackAttributes.h     | 83 +++++++++++++++++++
 2 files changed, 138 insertions(+)
 create mode 100644 src/libtomahawk/database/DatabaseCommand_LoadTrackAttributes.cpp
 create mode 100644 src/libtomahawk/database/DatabaseCommand_LoadTrackAttributes.h

diff --git a/src/libtomahawk/database/DatabaseCommand_LoadTrackAttributes.cpp b/src/libtomahawk/database/DatabaseCommand_LoadTrackAttributes.cpp
new file mode 100644
index 000000000..84b861e75
--- /dev/null
+++ b/src/libtomahawk/database/DatabaseCommand_LoadTrackAttributes.cpp
@@ -0,0 +1,55 @@
+/* === This file is part of Tomahawk Player - <http://tomahawk-player.org> ===
+ *
+ *   Copyright 2013, Christian Muehlhaeuser <muesli@tomahawk-player.org>
+ *
+ *   Tomahawk 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.
+ *
+ *   Tomahawk 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 Tomahawk. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "DatabaseCommand_LoadTrackAttributes.h"
+
+#include <QSqlQuery>
+
+#include "database/Database.h"
+#include "DatabaseImpl.h"
+#include "network/Servent.h"
+#include "Result.h"
+#include "utils/Logger.h"
+
+using namespace Tomahawk;
+
+
+void
+DatabaseCommand_LoadTrackAttributes::exec( DatabaseImpl* dbi )
+{
+    Q_ASSERT( m_track );
+    if ( m_track->trackId() == 0 )
+        return;
+
+    TomahawkSqlQuery query = dbi->newquery();
+
+    query.prepare( "SELECT k, v FROM track_attributes WHERE id = ?" );
+    query.bindValue( 0, m_track->trackId() );
+    query.exec();
+
+    QVariantMap attr;
+    while ( query.next() )
+    {
+        attr[ query.value( 0 ).toString() ] = query.value( 1 ).toString();
+    }
+
+    m_track->setAttributes( attr );
+
+    emit done();
+}
+
diff --git a/src/libtomahawk/database/DatabaseCommand_LoadTrackAttributes.h b/src/libtomahawk/database/DatabaseCommand_LoadTrackAttributes.h
new file mode 100644
index 000000000..9e7098db2
--- /dev/null
+++ b/src/libtomahawk/database/DatabaseCommand_LoadTrackAttributes.h
@@ -0,0 +1,83 @@
+/* === This file is part of Tomahawk Player - <http://tomahawk-player.org> ===
+ *
+ *   Copyright 2013, Christian Muehlhaeuser <muesli@tomahawk-player.org>
+ *
+ *   Tomahawk 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.
+ *
+ *   Tomahawk 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 Tomahawk. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef DATABASECOMMAND_LOADTRACKATTRIBUTES_H
+#define DATABASECOMMAND_LOADTRACKATTRIBUTES_H
+
+#include <QDateTime>
+#include <QList>
+#include "database/DatabaseCommand.h"
+
+#include "SourceList.h"
+#include "Typedefs.h"
+
+#include "DllMacro.h"
+
+/**
+ * \class DatabaseCommand_LoadTrackAttributes
+ * \brief Database command used to load track attributes from the database.
+ *
+ * This Database command allows Tomahawk to load track attributes from
+ * the local database.
+ *
+ */
+class DLLEXPORT DatabaseCommand_LoadTrackAttributes : public DatabaseCommand
+{
+Q_OBJECT
+
+public:
+    /**
+     * \brief Overloaded constructor for DatabaseCommand_LoadTrackAttributes.
+     * \param result A Tomahawk Query object.
+     * \param parent Parent class.
+     *
+     * Constructor which creates a new database command for loading all track attributes.
+     */
+    explicit DatabaseCommand_LoadTrackAttributes( const Tomahawk::trackdata_ptr& track, QObject* parent = 0 )
+        : DatabaseCommand( parent ), m_track( track )
+    {
+        setSource( SourceList::instance()->getLocal() );
+    }
+
+    /**
+     * \brief Returns the name of this database command.
+     * \return QString containing the database command name 'loadtrackattributes'.
+     */
+    virtual QString commandname() const { return "loadtrackattributes"; }
+
+    /**
+     * \brief Executes the database command.
+     * \param dbi Database instance.
+     *
+     * This method executes an sql query to load the track attributes
+     * from the database and sets it on a Track object.
+     *
+     * \see Track::setTrackAttributes()
+     */
+    virtual void exec( DatabaseImpl* );
+
+    virtual bool doesMutates() const { return false; }
+
+signals:
+    void done();
+
+private:
+    Tomahawk::trackdata_ptr m_track;
+};
+
+#endif // DATABASECOMMAND_LOADTRACKATTRIBUTES_H