weee

migrations/0005_artist_photos_and_edits.sql

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+-- Artist photos (auto-fetched or manually overridden) reuse the
+-- existing cover_art table rather than a parallel one, so photo
+-- resizing/caching/serving (internal/coverart, /cover-art/{id}) works
+-- unchanged for artists. That requires adding an artist_id column and
+-- widening the "must belong to something" CHECK, which SQLite can only
+-- do by rebuilding the table.
+--
+-- albums.cover_art_id and podcast_channels.cover_art_id are declared
+-- "ON DELETE SET NULL" against cover_art(id), and SQLite's DROP TABLE
+-- performs an implicit DELETE FROM first when foreign_keys=ON — which
+-- would fire that SET NULL and silently wipe every album's/channel's
+-- chosen cover on upgrade. Back those columns up and restore them
+-- after the rebuild.
+CREATE TEMP TABLE _cover_art_migration_backup_albums AS
+    SELECT id, cover_art_id FROM albums WHERE cover_art_id IS NOT NULL;
+CREATE TEMP TABLE _cover_art_migration_backup_podcasts AS
+    SELECT id, cover_art_id FROM podcast_channels WHERE cover_art_id IS NOT NULL;
+
+CREATE TABLE cover_art_new (
+    id              TEXT PRIMARY KEY,
+    album_id        TEXT REFERENCES albums(id) ON DELETE CASCADE,
+    media_file_id   TEXT REFERENCES media_files(id) ON DELETE CASCADE,
+    artist_id       TEXT REFERENCES artists(id) ON DELETE CASCADE,
+    source          TEXT NOT NULL CHECK (source IN ('embedded','folder','external')),
+    source_path     TEXT NOT NULL DEFAULT '',
+    mime_type       TEXT NOT NULL DEFAULT '',
+    content_hash    TEXT NOT NULL DEFAULT '',
+    width            INTEGER NOT NULL DEFAULT 0,
+    height           INTEGER NOT NULL DEFAULT 0,
+    updated_at      TEXT NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%fZ','now')),
+    CHECK ((album_id IS NOT NULL) OR (media_file_id IS NOT NULL) OR (artist_id IS NOT NULL))
+);
+
+INSERT INTO cover_art_new (id, album_id, media_file_id, artist_id, source, source_path, mime_type, content_hash, width, height, updated_at)
+SELECT id, album_id, media_file_id, NULL, source, source_path, mime_type, content_hash, width, height, updated_at FROM cover_art;
+
+DROP TABLE cover_art;
+ALTER TABLE cover_art_new RENAME TO cover_art;
+
+CREATE INDEX idx_cover_art_album ON cover_art(album_id);
+CREATE INDEX idx_cover_art_media_file ON cover_art(media_file_id);
+CREATE INDEX idx_cover_art_artist ON cover_art(artist_id);
+
+UPDATE albums SET cover_art_id = (
+    SELECT cover_art_id FROM _cover_art_migration_backup_albums WHERE _cover_art_migration_backup_albums.id = albums.id
+) WHERE id IN (SELECT id FROM _cover_art_migration_backup_albums);
+UPDATE podcast_channels SET cover_art_id = (
+    SELECT cover_art_id FROM _cover_art_migration_backup_podcasts WHERE _cover_art_migration_backup_podcasts.id = podcast_channels.id
+) WHERE id IN (SELECT id FROM _cover_art_migration_backup_podcasts);
+
+DROP TABLE _cover_art_migration_backup_albums;
+DROP TABLE _cover_art_migration_backup_podcasts;
+
+-- Artist bio + photo (auto-fetched or admin-overridden).
+ALTER TABLE artists ADD COLUMN bio TEXT NOT NULL DEFAULT '';
+ALTER TABLE artists ADD COLUMN cover_art_id TEXT REFERENCES cover_art(id);
+ALTER TABLE artists ADD COLUMN photo_manual INTEGER NOT NULL DEFAULT 0;
+
+-- Lets an admin edit a song's title/track/disc/composer/conductor
+-- without a later library rescan silently overwriting the edit.
+ALTER TABLE songs ADD COLUMN metadata_locked INTEGER NOT NULL DEFAULT 0;