Removed the database lib from services as it is still not a service

src/libs/database/impl/TrackArtistLink.cpp

@@ -0,0 +1,111 @@
+/*
+ * Copyright (C) 2013-2016 Emeric Poupon
+ *
+ * This file is part of LMS.
+ *
+ * LMS 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.
+ *
+ * LMS 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 LMS.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "database/TrackArtistLink.hpp"
+
+#include "database/Artist.hpp"
+#include "database/Session.hpp"
+#include "database/Track.hpp"
+
+#include "IdTypeTraits.hpp"
+#include "Utils.hpp"
+
+namespace Database
+{
+    namespace
+    {
+        Wt::Dbo::Query<TrackArtistLinkId> createQuery(Session& session, const TrackArtistLink::FindParameters& params)
+        {
+            session.checkReadTransaction();
+
+            auto query{ session.getDboSession().query<TrackArtistLinkId>("SELECT DISTINCT t_a_l.id FROM track_artist_link t_a_l") };
+
+            if (params.linkType)
+                query.where("t_a_l.type = ?").bind(*params.linkType);
+
+            if (params.track.isValid() || params.release.isValid())
+                query.join("track t ON t.id = t_a_l.track_id");
+
+            if (params.artist.isValid())
+                query.join("artist a ON a.id = t_a_l.artist_id");
+
+            if (params.release.isValid())
+                query.where("t.release_id = ?").bind(params.release);
+
+            if (params.track.isValid())
+                query.where("t.id = ?").bind(params.track);
+
+            return query;
+        }
+    }
+
+    TrackArtistLink::TrackArtistLink(ObjectPtr<Track> track, ObjectPtr<Artist> artist, TrackArtistLinkType type, std::string_view subType)
+        : _type{ type }
+        , _subType{ subType }
+        , _track{ getDboPtr(track) }
+        , _artist{ getDboPtr(artist) }
+    {
+    }
+
+    TrackArtistLink::pointer TrackArtistLink::create(Session& session, ObjectPtr<Track> track, ObjectPtr<Artist> artist, TrackArtistLinkType type, std::string_view subType)
+    {
+        session.checkWriteTransaction();
+
+        TrackArtistLink::pointer res{ session.getDboSession().add(std::make_unique<TrackArtistLink>(track, artist, type, subType)) };
+        session.getDboSession().flush();
+
+        return res;
+    }
+
+    TrackArtistLink::pointer TrackArtistLink::find(Session& session, TrackArtistLinkId id)
+    {
+        session.checkReadTransaction();
+        return session.getDboSession().find<TrackArtistLink>().where("id = ?").bind(id).resultValue();
+    }
+
+    RangeResults<TrackArtistLinkId> TrackArtistLink::find(Session& session, const FindParameters& params)
+    {
+        session.checkReadTransaction();
+
+        auto query{ createQuery(session, params) };
+        return Utils::execQuery<TrackArtistLinkId>(query, params.range);
+    }
+
+    EnumSet<TrackArtistLinkType> TrackArtistLink::findUsedTypes(Session& session)
+    {
+        session.checkReadTransaction();
+
+        auto res{ session.getDboSession().query<TrackArtistLinkType>("SELECT DISTINCT type from track_artist_link").resultList() };
+
+        return EnumSet<TrackArtistLinkType>(std::begin(res), std::end(res));
+    }
+
+    EnumSet<TrackArtistLinkType> TrackArtistLink::findUsedTypes(Session& session, ArtistId artistId)
+    {
+        session.checkReadTransaction();
+
+        auto res{ session.getDboSession()
+            .query<TrackArtistLinkType>("SELECT DISTINCT type from track_artist_link")
+            .where("artist_id = ?").bind(artistId)
+            .resultList() };
+
+        return EnumSet<TrackArtistLinkType>(std::begin(res), std::end(res));
+    }
+}
+