AlbumTrack.cpp 6.95 KB
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/*****************************************************************************
 * Media Library
 *****************************************************************************
 * Copyright (C) 2015 Hugo Beauzée-Luyssen, Videolabs
 *
 * Authors: Hugo Beauzée-Luyssen<hugo@beauzee.fr>
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either version 2.1 of the License, or
 * (at your option) any later version.
 *
 * This program 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
 *****************************************************************************/

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#include "AlbumTrack.h"
#include "Album.h"
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#include "Artist.h"
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#include "Media.h"
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#include "Genre.h"
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#include "database/SqliteTools.h"
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#include "logging/Logger.h"
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const std::string policy::AlbumTrackTable::Name = "AlbumTrack";
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const std::string policy::AlbumTrackTable::PrimaryKeyColumn = "id_track";
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unsigned int AlbumTrack::* const policy::AlbumTrackTable::PrimaryKey = &AlbumTrack::m_id;
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AlbumTrack::AlbumTrack( MediaLibraryPtr ml, sqlite::Row& row )
    : m_ml( ml )
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{
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    row >> m_id
        >> m_mediaId
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        >> m_artistId
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        >> m_genreId
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        >> m_trackNumber
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        >> m_albumId
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        >> m_releaseYear
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        >> m_discNumber
        >> m_isPresent;
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}

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AlbumTrack::AlbumTrack( MediaLibraryPtr ml, unsigned int mediaId, unsigned int trackNumber, unsigned int albumId, unsigned int discNumber )
    : m_ml( ml )
    , m_id( 0 )
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    , m_mediaId( mediaId )
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    , m_trackNumber( trackNumber )
    , m_albumId( albumId )
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    , m_releaseYear( 0 )
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    , m_discNumber( discNumber )
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    , m_isPresent( true )
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{
}

unsigned int AlbumTrack::id() const
{
    return m_id;
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}

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ArtistPtr AlbumTrack::artist() const
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{
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    if ( m_artistId == 0 )
        return nullptr;
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    auto lock = m_artist.lock();
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    if ( m_artist.isCached() == false )
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    {
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        m_artist = Artist::fetch( m_ml, m_artistId );
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    }
    return m_artist.get();
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}

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bool AlbumTrack::setArtist( std::shared_ptr<Artist> artist )
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{
    static const std::string req = "UPDATE " + policy::AlbumTrackTable::Name +
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            " SET artist_id = ? WHERE id_track = ?";
    if ( artist->id() == m_artistId )
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        return true;
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    if ( sqlite::Tools::executeUpdate( m_ml->getConn(), req, artist->id(), m_id ) == false )
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        return false;
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    m_artistId = artist->id();
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    m_artist = artist;
    return true;
}

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bool AlbumTrack::createTable( DBConnection dbConnection )
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{
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    static const std::string req = "CREATE TABLE IF NOT EXISTS " + policy::AlbumTrackTable::Name + "("
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                "id_track INTEGER PRIMARY KEY AUTOINCREMENT,"
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                "media_id INTEGER,"
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                "artist_id UNSIGNED INTEGER,"
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                "genre_id INTEGER,"
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                "track_number UNSIGNED INTEGER,"
                "album_id UNSIGNED INTEGER NOT NULL,"
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                "release_year UNSIGNED INTEGER,"
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                "disc_number UNSIGNED INTEGER,"
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                "is_present BOOLEAN NOT NULL DEFAULT 1,"
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                "FOREIGN KEY (media_id) REFERENCES " + policy::MediaTable::Name + "(id_media)"
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                    " ON DELETE CASCADE,"
                "FOREIGN KEY (artist_id) REFERENCES " + policy::ArtistTable::Name + "(id_artist)"
                    " ON DELETE CASCADE,"
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                "FOREIGN KEY (genre_id) REFERENCES " + policy::GenreTable::Name + "(id_genre),"
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                "FOREIGN KEY (album_id) REFERENCES Album(id_album) "
                    " ON DELETE CASCADE"
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            ")";
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    static const std::string triggerReq = "CREATE TRIGGER IF NOT EXISTS is_track_present AFTER UPDATE OF is_present "
            "ON " + policy::MediaTable::Name +
            " BEGIN"
            " UPDATE " + policy::AlbumTrackTable::Name + " SET is_present = new.is_present WHERE media_id = new.id_media;"
            " END";
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    return sqlite::Tools::executeRequest( dbConnection, req ) &&
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            sqlite::Tools::executeRequest( dbConnection, triggerReq );
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}

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std::shared_ptr<AlbumTrack> AlbumTrack::create( MediaLibraryPtr ml, unsigned int albumId, const Media& media, unsigned int trackNb, unsigned int discNumber )
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{
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    auto self = std::make_shared<AlbumTrack>( ml, media.id(), trackNb, albumId, discNumber );
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    static const std::string req = "INSERT INTO " + policy::AlbumTrackTable::Name
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            + "(media_id, track_number, album_id, disc_number) VALUES(?, ?, ?, ?)";
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    if ( insert( ml, self, req, media.id(), trackNb, albumId, discNumber ) == false )
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        return nullptr;
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    return self;
}

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AlbumTrackPtr AlbumTrack::fromMedia( MediaLibraryPtr ml, unsigned int mediaId )
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{
    static const std::string req = "SELECT * FROM " + policy::AlbumTrackTable::Name +
            " WHERE media_id = ?";
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    return fetch( ml, req, mediaId );
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}

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std::vector<AlbumTrackPtr> AlbumTrack::fromGenre( MediaLibraryPtr ml, unsigned int genreId )
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{
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    static const std::string req = "SELECT * FROM " + policy::AlbumTrackTable::Name +
            " WHERE genre_id = ?";
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    return fetchAll<IAlbumTrack>( ml, req, genreId );
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}

GenrePtr AlbumTrack::genre()
{
    auto l = m_genre.lock();
    if ( m_genre.isCached() == false )
    {
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        m_genre = Genre::fetch( m_ml, m_genreId );
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    }
    return m_genre.get();
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}

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bool AlbumTrack::setGenre( std::shared_ptr<Genre> genre )
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{
    static const std::string req = "UPDATE " + policy::AlbumTrackTable::Name
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            + " SET genre_id = ? WHERE id_track = ?";
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    if ( sqlite::Tools::executeUpdate( m_ml->getConn(), req,
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                                       sqlite::ForeignKey( genre != nullptr ? genre->id() : 0 ),
                                       m_id ) == false )
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        return false;
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    auto l = m_genre.lock();
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    m_genre = genre;
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    m_genreId = genre != nullptr ? genre->id() : 0;
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    return true;
}

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unsigned int AlbumTrack::trackNumber()
{
    return m_trackNumber;
}

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unsigned int AlbumTrack::releaseYear() const
{
    return m_releaseYear;
}

bool AlbumTrack::setReleaseYear(unsigned int year)
{
    if ( m_releaseYear == year )
        return true;
    static const std::string req = "UPDATE " + policy::AlbumTrackTable::Name +
            " SET release_year = ? WHERE id_track = ?";
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    if ( sqlite::Tools::executeUpdate( m_ml->getConn(), req, year, m_id ) == false )
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        return false;
    m_releaseYear = year;
    return true;
}

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unsigned int AlbumTrack::discNumber() const
{
    return m_discNumber;
}

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std::shared_ptr<IAlbum> AlbumTrack::album()
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{
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    auto album = m_album.lock();
    if ( album == nullptr && m_albumId != 0 )
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    {
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        album = Album::fetch( m_ml, m_albumId );
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        m_album = album;
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    }
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    return album;
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}