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Fix watchlist NOT NULL constraint failing for iTunes-only artists

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The migration to make spotify_artist_id nullable was using fragile string
matching against CREATE TABLE SQL, which silently failed for some databases.
Now uses PRAGMA table_info to reliably detect the NOT NULL flag.
This commit is contained in:
Broque Thomas 2026-03-15 14:23:42 -07:00
parent ab21855af3
commit 25cc96e120
1 changed files with 22 additions and 11 deletions
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33
database/music_database.py
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@ -1111,16 +1111,21 @@ class MusicDatabase:
"""
Make spotify_artist_id nullable in watchlist_artists table.
This allows adding iTunes-only artists without Spotify IDs.
Since SQLite doesn't support modifying column constraints directly,
we need to recreate the table if the constraint needs to be changed.
"""
try:
# Check if spotify_artist_id is currently NOT NULL
cursor.execute("SELECT sql FROM sqlite_master WHERE type='table' AND name='watchlist_artists'")
result = cursor.fetchone()
if result and 'spotify_artist_id TEXT UNIQUE NOT NULL' in result[0]:
# Check if spotify_artist_id is currently NOT NULL using PRAGMA
# (more reliable than string-matching the CREATE TABLE SQL)
cursor.execute("PRAGMA table_info(watchlist_artists)")
columns = {col[1]: col for col in cursor.fetchall()}
spotify_col = columns.get('spotify_artist_id')
# notnull flag is index 3 in PRAGMA table_info
has_not_null = spotify_col and spotify_col[3] == 1
if has_not_null:
logger.info("Migrating watchlist_artists table to make spotify_artist_id nullable...")
# Drop leftover temp table from any previous failed migration
@ -1148,11 +1153,17 @@ class MusicDatabase:
)
""")
# Copy data from old table
cursor.execute("""
INSERT INTO watchlist_artists_new
SELECT * FROM watchlist_artists
""")
# Copy data from old table (only columns that exist in both)
cursor.execute("PRAGMA table_info(watchlist_artists)")
old_cols = [col[1] for col in cursor.fetchall()]
new_cols = ['id', 'spotify_artist_id', 'artist_name', 'date_added',
'last_scan_timestamp', 'created_at', 'updated_at', 'image_url',
'include_albums', 'include_eps', 'include_singles', 'include_live',
'include_remixes', 'include_acoustic', 'include_compilations',
'itunes_artist_id']
shared_cols = [c for c in new_cols if c in old_cols]
cols_str = ', '.join(shared_cols)
cursor.execute(f"INSERT INTO watchlist_artists_new ({cols_str}) SELECT {cols_str} FROM watchlist_artists")
# Drop old table
cursor.execute("DROP TABLE watchlist_artists")