311 lines
9.0 KiB
C++
311 lines
9.0 KiB
C++
/*
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* Copyright (C) 2015 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 "services/database/Artist.hpp"
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#include <Wt/Dbo/WtSqlTraits.h>
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#include "services/database/Cluster.hpp"
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#include "services/database/Release.hpp"
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#include "services/database/Session.hpp"
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#include "services/database/Track.hpp"
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#include "services/database/User.hpp"
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#include "utils/Logger.hpp"
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#include "SqlQuery.hpp"
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#include "Utils.hpp"
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#include "EnumSetTraits.hpp"
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#include "IdTypeTraits.hpp"
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namespace Database
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{
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Artist::Artist(const std::string& name, const std::optional<UUID>& MBID)
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: _name {std::string(name, 0 , _maxNameLength)},
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_sortName {_name},
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_MBID {MBID ? MBID->getAsString() : ""}
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{
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}
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Artist::pointer
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Artist::create(Session& session, const std::string& name, const std::optional<UUID>& MBID)
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{
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return session.getDboSession().add(std::unique_ptr<Artist> {new Artist {name, MBID}});
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}
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std::size_t
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Artist::getCount(Session& session)
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{
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session.checkSharedLocked();
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return session.getDboSession().query<int>("SELECT COUNT(*) FROM artist");
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}
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std::vector<Artist::pointer>
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Artist::find(Session& session, const std::string& name)
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{
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session.checkSharedLocked();
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Wt::Dbo::collection<Wt::Dbo::ptr<Artist>> res = session.getDboSession().find<Artist>()
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.where("name = ?").bind(std::string {name, 0, _maxNameLength})
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.orderBy("LENGTH(mbid) DESC"); // put mbid entries first
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return std::vector<Artist::pointer>(res.begin(), res.end());
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}
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Artist::pointer
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Artist::find(Session& session, const UUID& mbid)
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{
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session.checkSharedLocked();
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return session.getDboSession().find<Artist>().where("mbid = ?").bind(std::string {mbid.getAsString()}).resultValue();
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}
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Artist::pointer
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Artist::find(Session& session, ArtistId id)
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{
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session.checkSharedLocked();
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return session.getDboSession().find<Artist>().where("id = ?").bind(id).resultValue();
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}
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bool
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Artist::exists(Session& session, ArtistId id)
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{
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session.checkSharedLocked();
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return session.getDboSession().query<int>("SELECT 1 FROM artist").where("id = ?").bind(id).resultValue() == 1;
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}
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static
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Wt::Dbo::Query<ArtistId>
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createQuery(Session& session, const Artist::FindParameters& params)
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{
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session.checkSharedLocked();
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auto query {session.getDboSession().query<ArtistId>("SELECT DISTINCT a.id FROM artist a")};
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if (params.sortMethod == ArtistSortMethod::LastWritten
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|| params.writtenAfter.isValid()
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|| params.linkType
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|| params.track.isValid()
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|| 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.join("track_artist_link t_a_l ON t_a_l.artist_id = a.id");
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}
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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.writtenAfter.isValid())
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query.where("t.file_last_write > ?").bind(params.writtenAfter);
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if (!params.keywords.empty())
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{
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std::vector<std::string> clauses;
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std::vector<std::string> sortClauses;
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for (std::string_view keyword : params.keywords)
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{
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clauses.push_back("a.name LIKE ? ESCAPE '" ESCAPE_CHAR_STR "'");
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query.bind("%" + Utils::escapeLikeKeyword(keyword) + "%");
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}
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for (std::string_view keyword : params.keywords)
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{
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sortClauses.push_back("a.sort_name LIKE ? ESCAPE '" ESCAPE_CHAR_STR "'");
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query.bind("%" + Utils::escapeLikeKeyword(keyword) + "%");
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}
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query.where("(" + StringUtils::joinStrings(clauses, " AND ") + ") OR (" + StringUtils::joinStrings(sortClauses, " AND ") + ")");
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}
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if (params.starringUser.isValid())
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{
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assert(params.scrobbler);
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query.join("starred_artist s_a ON s_a.artist_id = a.id")
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.where("s_a.user_id = ?").bind(params.starringUser)
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.where("s_a.scrobbler = ?").bind(*params.scrobbler)
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.where("s_a.scrobbling_state <> ?").bind(ScrobblingState::PendingRemove);
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}
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if (!params.clusters.empty())
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{
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std::ostringstream oss;
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oss << "a.id IN (SELECT DISTINCT a.id FROM artist a"
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" INNER JOIN track t ON t.id = t_a_l.track_id"
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" INNER JOIN track_artist_link t_a_l ON t_a_l.artist_id = a.id"
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" INNER JOIN cluster c ON c.id = t_c.cluster_id"
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" INNER JOIN track_cluster t_c ON t_c.track_id = t.id";
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WhereClause clusterClause;
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for (const ClusterId clusterId : params.clusters)
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{
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clusterClause.Or(WhereClause("c.id = ?"));
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query.bind(clusterId);
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}
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oss << " " << clusterClause.get();
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oss << " GROUP BY t.id,a.id HAVING COUNT(DISTINCT c.id) = " << params.clusters.size() << ")";
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query.where(oss.str());
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}
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if (params.track.isValid())
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query.where("t.id = ?").bind(params.track);
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if (params.release.isValid())
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query.where("t.release_id = ?").bind(params.release);
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switch (params.sortMethod)
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{
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case ArtistSortMethod::None:
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break;
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case ArtistSortMethod::ByName:
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query.orderBy("a.name COLLATE NOCASE");
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break;
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case ArtistSortMethod::BySortName:
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query.orderBy("a.sort_name COLLATE NOCASE");
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break;
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case ArtistSortMethod::Random:
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query.orderBy("RANDOM()");
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break;
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case ArtistSortMethod::LastWritten:
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query.orderBy("t.file_last_write DESC");
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break;
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case ArtistSortMethod::StarredDateDesc:
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assert(params.starringUser.isValid());
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query.orderBy("s_a.date_time DESC");
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break;
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}
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return query;
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}
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RangeResults<ArtistId>
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Artist::findAllOrphans(Session& session, Range range)
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{
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session.checkSharedLocked();
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auto query {session.getDboSession().query<ArtistId>("SELECT DISTINCT a.id FROM artist a WHERE NOT EXISTS(SELECT 1 FROM track t INNER JOIN track_artist_link t_a_l ON t_a_l.artist_id = a.id WHERE t.id = t_a_l.track_id)")};
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return Utils::execQuery(query, range);
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}
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RangeResults<ArtistId>
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Artist::find(Session& session, const FindParameters& params)
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{
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session.checkSharedLocked();
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auto query {createQuery(session, params)};
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return Utils::execQuery(query, params.range);
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}
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RangeResults<ArtistId>
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Artist::findSimilarArtists(EnumSet<TrackArtistLinkType> artistLinkTypes, Range range) const
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{
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assert(session());
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std::ostringstream oss;
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oss <<
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"SELECT a.id FROM artist a"
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" INNER JOIN track_artist_link t_a_l ON t_a_l.artist_id = a.id"
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" INNER JOIN track t ON t.id = t_a_l.track_id"
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" INNER JOIN track_cluster t_c ON t_c.track_id = t.id"
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" WHERE "
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" t_c.cluster_id IN (SELECT c.id from cluster c"
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" INNER JOIN track t ON c.id = t_c.cluster_id"
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" INNER JOIN track_cluster t_c ON t_c.track_id = t.id"
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" INNER JOIN artist a ON a.id = t_a_l.artist_id"
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" INNER JOIN track_artist_link t_a_l ON t_a_l.track_id = t.id"
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" WHERE a.id = ?)"
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" AND a.id <> ?";
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if (!artistLinkTypes.empty())
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{
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oss << " AND t_a_l.type IN (";
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bool first {true};
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for (TrackArtistLinkType type : artistLinkTypes)
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{
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(void) type;
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if (!first)
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oss << ", ";
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oss << "?";
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first = false;
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}
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oss << ")";
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}
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auto query {session()->query<ArtistId>(oss.str())
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.bind(getId())
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.bind(getId())
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.groupBy("a.id")
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.orderBy("COUNT(*) DESC, RANDOM()")};
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for (TrackArtistLinkType type : artistLinkTypes)
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query.bind(type);
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return Utils::execQuery(query, range);
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}
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std::vector<std::vector<Cluster::pointer>>
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Artist::getClusterGroups(std::vector<ClusterType::pointer> clusterTypes, std::size_t size) const
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{
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assert(session());
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WhereClause where;
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std::ostringstream oss;
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oss << "SELECT c FROM cluster c INNER JOIN track t ON c.id = t_c.cluster_id INNER JOIN track_cluster t_c ON t_c.track_id = t.id INNER JOIN cluster_type c_type ON c.cluster_type_id = c_type.id INNER JOIN artist a ON t_a_l.artist_id = a.id INNER JOIN track_artist_link t_a_l ON t_a_l.track_id = t.id";
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where.And(WhereClause("a.id = ?")).bind(getId().toString());
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{
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WhereClause clusterClause;
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for (auto clusterType : clusterTypes)
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clusterClause.Or(WhereClause("c_type.id = ?")).bind(clusterType->getId().toString());
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where.And(clusterClause);
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}
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oss << " " << where.get();
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oss << "GROUP BY c.id ORDER BY COUNT(DISTINCT c.id) DESC";
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Wt::Dbo::Query<Wt::Dbo::ptr<Cluster>> query = session()->query<Wt::Dbo::ptr<Cluster>>( oss.str() );
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for (const std::string& bindArg : where.getBindArgs())
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query.bind(bindArg);
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Wt::Dbo::collection<Wt::Dbo::ptr<Cluster>> queryRes = query;
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std::map<ClusterTypeId, std::vector<Cluster::pointer>> clustersByType;
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for (Cluster::pointer cluster : queryRes)
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{
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if (clustersByType[cluster->getType()->getId()].size() < size)
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clustersByType[cluster->getType()->getId()].push_back(cluster);
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}
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std::vector<std::vector<Cluster::pointer>> res;
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for (const auto& [clusterTypeId, clusters] : clustersByType)
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res.push_back(clusters);
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return res;
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}
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void
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Artist::setSortName(const std::string& sortName)
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{
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_sortName = std::string(sortName, 0 , _maxNameLength);
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}
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} // namespace Database
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