Added an option to skip playlists that are refering to a single album + skip playlists that are empty, fixes #577

src/libs/database/impl/Migration.cpp

@@ -35,7 +35,7 @@ namespace lms::db
 {
     namespace
     {
-        static constexpr Version LMS_DATABASE_VERSION{ 77 };
+        static constexpr Version LMS_DATABASE_VERSION{ 78 };
     }
 
     VersionInfo::VersionInfo()
@@ -1029,6 +1029,12 @@ FROM tracklist)");
         utils::executeCommand(*session.getDboSession(), "UPDATE scan_settings SET scan_version = scan_version + 1");
     }
 
+    void migrateFromV77(Session& session)
+    {
+        // added new scan settings: skip single release playlists (default value is conservative, no need to rescan)
+        utils::executeCommand(*session.getDboSession(), "ALTER TABLE scan_settings ADD COLUMN skip_single_release_playlists BOOLEAN NOT NULL DEFAULT(FALSE)");
+    }
+
     bool doDbMigration(Session& session)
     {
         constexpr std::string_view outdatedMsg{ "Outdated database, please rebuild it (delete the .db file and restart)" };
@@ -1082,6 +1088,7 @@ FROM tracklist)");
             { 74, migrateFromV74 },
             { 75, migrateFromV75 },
             { 76, migrateFromV76 },
+            { 77, migrateFromV77 },
         };
 
         bool migrationPerformed{};

src/libs/database/impl/ScanSettings.cpp

@@ -94,6 +94,15 @@ namespace lms::db
         }
     }
 
+    void ScanSettings::setSkipSingleReleasePlayLists(bool value)
+    {
+        if (_skipSingleReleasePlayLists != value)
+        {
+            _skipSingleReleasePlayLists = value;
+            incScanVersion();
+        }
+    }
+
     void ScanSettings::incScanVersion()
     {
         _scanVersion += 1;

src/libs/database/include/database/ScanSettings.hpp

@@ -70,6 +70,7 @@ namespace lms::db
         SimilarityEngineType getSimilarityEngineType() const { return _similarityEngineType; }
         std::vector<std::string> getArtistTagDelimiters() const;
         std::vector<std::string> getDefaultTagDelimiters() const;
+        bool getSkipSingleReleasePlayLists() const { return _skipSingleReleasePlayLists; }
 
         // Setters
         void setUpdateStartTime(Wt::WTime t) { _startTime = t; }
@@ -78,6 +79,7 @@ namespace lms::db
         void setSimilarityEngineType(SimilarityEngineType type) { _similarityEngineType = type; }
         void setArtistTagDelimiters(std::span<const std::string_view> delimiters);
         void setDefaultTagDelimiters(std::span<const std::string_view> delimiters);
+        void setSkipSingleReleasePlayLists(bool value);
         void incScanVersion();
 
         template<class Action>
@@ -90,6 +92,7 @@ namespace lms::db
             Wt::Dbo::field(a, _extraTagsToScan, "extra_tags_to_scan");
             Wt::Dbo::field(a, _artistTagDelimiters, "artist_tag_delimiters");
             Wt::Dbo::field(a, _defaultTagDelimiters, "default_tag_delimiters");
+            Wt::Dbo::field(a, _skipSingleReleasePlayLists, "skip_single_release_playlists");
         }
 
     private:
@@ -100,5 +103,6 @@ namespace lms::db
         std::string _extraTagsToScan;
         std::string _artistTagDelimiters;
         std::string _defaultTagDelimiters;
+        bool _skipSingleReleasePlayLists{ false };
     };
 } // namespace lms::db

src/libs/database/include/database/Track.hpp

@@ -294,6 +294,7 @@ namespace lms::db
         std::vector<ObjectPtr<Artist>> getArtists(core::EnumSet<TrackArtistLinkType> artistLinkTypes) const; // no type means all
         std::vector<ArtistId> getArtistIds(core::EnumSet<TrackArtistLinkType> artistLinkTypes) const;        // no type means all
         std::vector<ObjectPtr<TrackArtistLink>> getArtistLinks() const;
+        ReleaseId getReleaseId() const { return _release.id(); }
         ObjectPtr<Release> getRelease() const { return _release; }
         std::vector<ObjectPtr<Cluster>> getClusters() const;
         std::vector<ClusterId> getClusterIds() const;