Added a message box to display some track information. closes #276

src/libs/services/database/impl/Artist.cpp

@@ -94,7 +94,10 @@ createQuery(Session& session, const Artist::FindParameters& params)
 	session.checkSharedLocked();
 
 	auto query {session.getDboSession().query<ArtistId>("SELECT DISTINCT a.id FROM artist a")};
-	if (params.sortMethod == ArtistSortMethod::LastWritten || params.writtenAfter.isValid() || params.linkType)
+	if (params.sortMethod == ArtistSortMethod::LastWritten
+			|| params.writtenAfter.isValid()
+			|| params.linkType
+			|| params.track.isValid())
 	{
 		query.join("track t ON t.id = t_a_l.track_id");
 		query.join("track_artist_link t_a_l ON t_a_l.artist_id = a.id");
@@ -157,6 +160,11 @@ createQuery(Session& session, const Artist::FindParameters& params)
 		query.where(oss.str());
 	}
 
+	if (params.track.isValid())
+	{
+		query.where("t.id = ?").bind(params.track);
+	}
+
 	switch (params.sortMethod)
 	{
 		case ArtistSortMethod::None:

src/libs/services/database/include/services/database/Artist.hpp

@@ -33,6 +33,7 @@
 #include "services/database/ReleaseId.hpp"
 #include "services/database/Types.hpp"
 #include "services/database/UserId.hpp"
+#include "services/database/TrackId.hpp"
 #include "utils/EnumSet.hpp"
 #include "utils/UUID.hpp"
 
@@ -61,6 +62,7 @@ class Artist : public Object<Artist, ArtistId>
 			Wt::WDateTime						writtenAfter;
 			UserId								starringUser;	// only artists starred by this user
 			std::optional<Scrobbler>			scrobbler;		// and for this scrobbler
+			TrackId								track;		// artists involved in this track
 
 			FindParameters& setClusters(const std::vector<ClusterId>& _clusters) { clusters = _clusters; return *this; }
 			FindParameters& setKeywords(const std::vector<std::string_view>& _keywords) { keywords = _keywords; return *this; }
@@ -69,6 +71,7 @@ class Artist : public Object<Artist, ArtistId>
 			FindParameters& setRange(Range _range) {range = _range; return *this; }
 			FindParameters& setWrittenAfter(const Wt::WDateTime& _after) { writtenAfter = _after; return *this; }
 			FindParameters& setStarringUser(UserId _user, Scrobbler _scrobbler) { starringUser = _user; scrobbler = _scrobbler; return *this; }
+			FindParameters& setTrack(TrackId _track) { track = _track; return *this; }
 		};
 
 		Artist() = default;

src/libs/services/database/test/Artist.cpp

@@ -92,21 +92,27 @@ TEST_F(DatabaseFixture, Artist_singleTrack)
 	}
 
 	{
-		auto transaction {session.createUniqueTransaction()};
+		auto transaction {session.createSharedTransaction()};
 		auto tracks {Track::find(session, Track::FindParameters{}.setName("MyTrackName").setArtistName("MyArtist"))};
 		ASSERT_EQ(tracks.results.size(), 1);
 		EXPECT_EQ(tracks.results.front(), track.getId());
 	}
 	{
-		auto transaction {session.createUniqueTransaction()};
+		auto transaction {session.createSharedTransaction()};
 		auto tracks {Track::find(session, Track::FindParameters{}.setName("MyTrackName").setArtistName("MyArtistFoo"))};
 		EXPECT_EQ(tracks.results.size(), 0);
 	}
 	{
-		auto transaction {session.createUniqueTransaction()};
+		auto transaction {session.createSharedTransaction()};
 		auto tracks {Track::find(session, Track::FindParameters{}.setName("MyTrackNameFoo").setArtistName("MyArtist"))};
 		EXPECT_EQ(tracks.results.size(), 0);
 	}
+	{
+		auto transaction {session.createSharedTransaction()};
+		auto artists {Artist::find(session, Artist::FindParameters{}.setTrack(track->getId()))};
+		ASSERT_EQ(artists.results.size(), 1);
+		EXPECT_EQ(artists.results.front(), artist.getId());
+	}
 }
 
 TEST_F(DatabaseFixture, Artist_singleTracktMultiRoles)
@@ -198,7 +204,7 @@ TEST_F(DatabaseFixture, Artist_singleTrackMultiArtists)
 	}
 
 	{
-		auto transaction {session.createUniqueTransaction()};
+		auto transaction {session.createSharedTransaction()};
 
 		auto tracks {Track::find(session, Track::FindParameters {}.setArtist(artist1->getId()))};
 		ASSERT_EQ(tracks.results.size(), 1);