Associate user provided images with playlists (using EXTIMG or same named file), fixes #833

src/libs/database/impl/Migration.cpp

@@ -35,7 +35,7 @@ namespace lms::db
 {
     namespace
     {
-        static constexpr Version LMS_DATABASE_VERSION{ 104 };
+        static constexpr Version LMS_DATABASE_VERSION{ 105 };
     }
 
     VersionInfo::VersionInfo()
@@ -1723,6 +1723,12 @@ FROM track)");
         utils::executeCommand(*session.getDboSession(), "ALTER TABLE scan_settings ADD COLUMN musicnn_model_identifier TEXT NOT NULL DEFAULT ''");
     }
 
+    void migrateFromV104(Session& session)
+    {
+        utils::executeCommand(*session.getDboSession(), R"(ALTER TABLE "playlist_file" ADD COLUMN "preferred_artwork_id" bigint)");
+        utils::executeCommand(*session.getDboSession(), R"(ALTER TABLE "playlist_file" ADD COLUMN "cover_image_file" text NOT NULL DEFAULT '')");
+    }
+
     bool doDbMigration(Session& session)
     {
         constexpr std::string_view outdatedMsg{ "Outdated database, please rebuild it (delete the .db file and restart)" };
@@ -1803,6 +1809,7 @@ FROM track)");
             { 101, migrateFromV101 },
             { 102, migrateFromV102 },
             { 103, migrateFromV103 },
+            { 104, migrateFromV104 },
         };
 
         bool migrationPerformed{};