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Preserve discovery data when re-mirroring playlists

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mirror_playlist() was deleting all tracks and re-inserting them,
which wiped the extra_data containing discovery results. Now saves
the {source_track_id: extra_data} map before deleting and restores
it on re-insert for tracks that don't bring their own extra_data.
This prevents discovery loss when playlists auto-refresh on tab load.
This commit is contained in:
Broque Thomas 2026-03-31 10:40:18 -07:00
parent 06f0e53a6f
commit 5334a4688e
1 changed files with 16 additions and 0 deletions
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16
database/music_database.py
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@ -9192,12 +9192,28 @@ class MusicDatabase:
(source, source_playlist_id, profile_id)
).fetchone()['id']
# Preserve existing extra_data (discovery results) before replacing tracks
old_extra_map = {}
try:
cursor.execute("""
SELECT source_track_id, extra_data FROM mirrored_playlist_tracks
WHERE playlist_id = ? AND source_track_id IS NOT NULL AND extra_data IS NOT NULL
""", (playlist_id,))
old_extra_map = {row['source_track_id']: row['extra_data'] for row in cursor.fetchall()}
except Exception:
pass
# Replace all tracks
cursor.execute("DELETE FROM mirrored_playlist_tracks WHERE playlist_id=?", (playlist_id,))
for i, t in enumerate(tracks):
extra = t.get('extra_data')
if extra and not isinstance(extra, str):
extra = json.dumps(extra)
# Restore preserved discovery data if the incoming track doesn't have its own
if not extra:
sid = t.get('source_track_id')
if sid and sid in old_extra_map:
extra = old_extra_map[sid]
cursor.execute("""
INSERT INTO mirrored_playlist_tracks
(playlist_id, position, track_name, artist_name, album_name, duration_ms, image_url, source_track_id, extra_data)