117 lines
4.3 KiB
C++
117 lines
4.3 KiB
C++
/*
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* Copyright (C) 2013-2016 Emeric Poupon
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*
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* This file is part of LMS.
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*
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* LMS is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* LMS is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with LMS. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "database/TrackArtistLink.hpp"
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#include "database/Artist.hpp"
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#include "database/Session.hpp"
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#include "database/Track.hpp"
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#include "Utils.hpp"
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#include "traits/IdTypeTraits.hpp"
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namespace lms::db
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{
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namespace
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{
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Wt::Dbo::Query<Wt::Dbo::ptr<TrackArtistLink>> createQuery(Session& session, const TrackArtistLink::FindParameters& params)
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{
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session.checkReadTransaction();
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auto query{ session.getDboSession()->query<Wt::Dbo::ptr<TrackArtistLink>>("SELECT t_a_l FROM track_artist_link t_a_l") };
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if (params.linkType)
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query.where("t_a_l.type = ?").bind(*params.linkType);
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if (params.track.isValid())
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query.where("t_a_l.track_id = ?").bind(params.track);
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if (params.artist.isValid())
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query.where("t_a_l.artist_id = ?").bind(params.artist);
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if (params.release.isValid())
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{
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query.join("track t ON t.id = t_a_l.track_id");
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query.where("t.release_id = ?").bind(params.release);
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}
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return query;
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}
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} // namespace
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TrackArtistLink::TrackArtistLink(ObjectPtr<Track> track, ObjectPtr<Artist> artist, TrackArtistLinkType type, std::string_view subType)
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: _type{ type }
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, _subType{ subType }
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, _track{ getDboPtr(track) }
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, _artist{ getDboPtr(artist) }
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{
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}
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TrackArtistLink::pointer TrackArtistLink::create(Session& session, ObjectPtr<Track> track, ObjectPtr<Artist> artist, TrackArtistLinkType type, std::string_view subType)
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{
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session.checkWriteTransaction();
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TrackArtistLink::pointer res{ session.getDboSession()->add(std::make_unique<TrackArtistLink>(track, artist, type, subType)) };
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session.getDboSession()->flush();
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return res;
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}
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TrackArtistLink::pointer TrackArtistLink::find(Session& session, TrackArtistLinkId id)
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{
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session.checkReadTransaction();
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return utils::fetchQuerySingleResult(session.getDboSession()->find<TrackArtistLink>().where("id = ?").bind(id));
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}
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void TrackArtistLink::find(Session& session, TrackId trackId, const std::function<void(const TrackArtistLink::pointer& link, const ObjectPtr<Artist>& artist)>& func)
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{
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session.checkReadTransaction();
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using ResultType = std::tuple<Wt::Dbo::ptr<TrackArtistLink>, Wt::Dbo::ptr<Artist>>;
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const auto query{ session.getDboSession()->query<ResultType>("SELECT t_a_l, a FROM track_artist_link t_a_l").join("artist a ON t_a_l.artist_id = a.id").where("t_a_l.track_id = ?").bind(trackId) };
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utils::forEachQueryResult(query, [&](const ResultType& result) {
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func(std::get<Wt::Dbo::ptr<TrackArtistLink>>(result), std::get<Wt::Dbo::ptr<Artist>>(result));
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});
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}
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void TrackArtistLink::find(Session& session, const FindParameters& parameters, const std::function<void(const TrackArtistLink::pointer&)>& func)
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{
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const auto query{ createQuery(session, parameters) };
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utils::forEachQueryResult(query, [&](const TrackArtistLink::pointer& link) {
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func(link);
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});
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}
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core::EnumSet<TrackArtistLinkType> TrackArtistLink::findUsedTypes(Session& session, ArtistId artistId)
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{
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session.checkReadTransaction();
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const auto query{ session.getDboSession()->query<TrackArtistLinkType>("SELECT DISTINCT type from track_artist_link").where("artist_id = ?").bind(artistId) };
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core::EnumSet<TrackArtistLinkType> res;
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utils::forEachQueryResult(query, [&](TrackArtistLinkType linkType) {
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res.insert(linkType);
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});
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return res;
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}
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} // namespace lms::db
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