* Added LovedTracksModel.

src/libtomahawk/playlist/LovedTracksModel.cpp

@@ -0,0 +1,133 @@
+/* === This file is part of Tomahawk Player - <http://tomahawk-player.org> ===
+ *
+ *   Copyright 2010-2012, 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 "LovedTracksModel.h"
+
+#include <QMimeData>
+#include <QTreeView>
+
+#include "Source.h"
+#include "SourceList.h"
+#include "database/Database.h"
+#include "database/DatabaseCommand_GenericSelect.h"
+#include "PlayableItem.h"
+#include "utils/TomahawkUtils.h"
+#include "utils/Logger.h"
+
+#define LOVED_TRACK_ITEMS 25
+
+using namespace Tomahawk;
+
+
+LovedTracksModel::LovedTracksModel( QObject* parent )
+    : PlaylistModel( parent )
+    , m_limit( LOVED_TRACK_ITEMS )
+{
+}
+
+
+LovedTracksModel::~LovedTracksModel()
+{
+}
+
+
+void
+LovedTracksModel::loadTracks()
+{
+    if ( rowCount( QModelIndex() ) )
+    {
+        clear();
+    }
+    startLoading();
+
+    QString sql;
+    if ( m_source.isNull() )
+    {
+        sql = QString( "SELECT track.name, artist.name, source, COUNT(*) as counter "
+                       "FROM social_attributes, track, artist "
+                       "WHERE social_attributes.id = track.id AND artist.id = track.artist AND social_attributes.k = 'Love' AND social_attributes.v = 'true' "
+                       "GROUP BY track.id "
+                       "ORDER BY counter DESC, social_attributes.timestamp DESC LIMIT 0, 50" );
+    }
+    else
+    {
+        sql = QString( "SELECT track.name, artist.name, COUNT(*) as counter "
+                       "FROM social_attributes, track, artist "
+                       "WHERE social_attributes.id = track.id AND artist.id = track.artist AND social_attributes.k = 'Love' AND social_attributes.v = 'true' AND social_attributes.source %1 "
+                       "GROUP BY track.id "
+                       "ORDER BY counter DESC, social_attributes.timestamp DESC " ).arg( m_source->isLocal() ? "IS NULL" : QString( "= %1" ).arg( m_source->id() ) );
+    }
+
+    DatabaseCommand_GenericSelect* cmd = new DatabaseCommand_GenericSelect( sql, DatabaseCommand_GenericSelect::Track, -1, 0 );
+    connect( cmd, SIGNAL( tracks( QList<Tomahawk::query_ptr> ) ), this, SLOT( appendQueries( QList<Tomahawk::query_ptr> ) ) );
+    Database::instance()->enqueue( QSharedPointer<DatabaseCommand>( cmd ) );
+}
+
+
+void
+LovedTracksModel::onSourcesReady()
+{
+    Q_ASSERT( m_source.isNull() );
+
+    loadTracks();
+
+    foreach ( const source_ptr& source, SourceList::instance()->sources() )
+        onSourceAdded( source );
+}
+
+
+void
+LovedTracksModel::setSource( const Tomahawk::source_ptr& source )
+{
+    m_source = source;
+    if ( source.isNull() )
+    {
+        if ( SourceList::instance()->isReady() )
+            onSourcesReady();
+        else
+            connect( SourceList::instance(), SIGNAL( ready() ), SLOT( onSourcesReady() ) );
+
+        connect( SourceList::instance(), SIGNAL( sourceAdded( Tomahawk::source_ptr ) ), SLOT( onSourceAdded( Tomahawk::source_ptr ) ) );
+    }
+    else
+    {
+        onSourceAdded( source );
+        loadTracks();
+    }
+}
+
+
+void
+LovedTracksModel::onSourceAdded( const Tomahawk::source_ptr& source )
+{
+    connect( source.data(), SIGNAL( socialAttributesChanged( QString ) ), SLOT( onTrackLoved() ), Qt::UniqueConnection );
+}
+
+
+void
+LovedTracksModel::onTrackLoved()
+{
+    loadTracks();
+}
+
+
+bool
+LovedTracksModel::isTemporary() const
+{
+    return true;
+}

src/libtomahawk/playlist/LovedTracksModel.h

@@ -0,0 +1,58 @@
+/* === This file is part of Tomahawk Player - <http://tomahawk-player.org> ===
+ *
+ *   Copyright 2010-2011, 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 LOVEDTRACKSMODEL_H
+#define LOVEDTRACKSMODEL_H
+
+#include <QList>
+#include <QHash>
+
+#include "Typedefs.h"
+#include "PlaylistModel.h"
+
+#include "DllMacro.h"
+
+class DLLEXPORT LovedTracksModel : public PlaylistModel
+{
+Q_OBJECT
+
+public:
+    explicit LovedTracksModel( QObject* parent = 0 );
+    ~LovedTracksModel();
+
+    unsigned int limit() const { return m_limit; }
+    void setLimit( unsigned int limit ) { m_limit = limit; }
+
+    bool isTemporary() const;
+
+public slots:
+    void setSource( const Tomahawk::source_ptr& source );
+
+private slots:
+    void onSourcesReady();
+    void onSourceAdded( const Tomahawk::source_ptr& source );
+
+    void onTrackLoved();
+    void loadTracks();
+
+private:
+    Tomahawk::source_ptr m_source;
+    unsigned int m_limit;
+};
+
+#endif // LOVEDTRACKSMODEL_H