bvandeusen
30b0edf97b
DeleteTrack returns album_id + artist_id so the calling service can chain the album-empty / artist-empty cascade. DeleteAlbumIfEmpty and DeleteArtistIfEmpty are no-ops when other rows still reference the parent — the service treats pgx.ErrNoRows as "not orphaned, skip".
77 lines
2.7 KiB
SQL
77 lines
2.7 KiB
SQL
-- name: UpsertArtist :one
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-- Insert or update by mbid when present; otherwise by (name, sort_name).
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-- Callers pass the canonical sort_name; scanner is responsible for derivation.
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INSERT INTO artists (name, sort_name, mbid)
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VALUES ($1, $2, $3)
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ON CONFLICT (mbid) WHERE mbid IS NOT NULL
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DO UPDATE SET
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name = EXCLUDED.name,
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sort_name = EXCLUDED.sort_name,
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updated_at = now()
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RETURNING *;
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-- name: GetArtistByID :one
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SELECT * FROM artists WHERE id = $1;
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-- name: GetArtistByName :one
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SELECT * FROM artists WHERE name = $1 LIMIT 1;
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-- name: ListArtists :many
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SELECT * FROM artists ORDER BY sort_name;
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-- name: SearchArtists :many
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SELECT * FROM artists
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WHERE name ILIKE '%' || $1 || '%'
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ORDER BY sort_name
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LIMIT $2 OFFSET $3;
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-- name: ListArtistsAlpha :many
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SELECT * FROM artists ORDER BY sort_name, name, id LIMIT $1 OFFSET $2;
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-- name: ListArtistsNewest :many
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-- Secondary id tiebreaker keeps pagination stable when created_at ties.
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SELECT * FROM artists ORDER BY created_at DESC, id DESC LIMIT $1 OFFSET $2;
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-- name: CountArtists :one
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SELECT COUNT(*) FROM artists;
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-- name: CountArtistsMatching :one
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SELECT COUNT(*) FROM artists WHERE name ILIKE '%' || $1::text || '%';
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-- name: GetArtistsByIDs :many
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-- Batched lookup used by M5c suggestion attribution to resolve top-3
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-- contributing seed UUIDs back to artist names in one round-trip.
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SELECT * FROM artists WHERE id = ANY($1::uuid[]);
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-- name: ListArtistsAlphaWithCovers :many
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-- M6a: alpha-sorted artist list with derived cover_album_id (most-recent
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-- album whose cover_art_path is set). Replaces ListArtistsAlpha for the
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-- /api/artists?sort=alpha branch — the new column is appended, so the
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-- alpha branch is purely additive on the wire. album_count is computed
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-- in the same query to drop the old N+1 in handleListArtists.
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SELECT sqlc.embed(artists),
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cov.id AS cover_album_id,
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cnt.album_count::bigint AS album_count
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FROM artists
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LEFT JOIN LATERAL (
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SELECT id FROM albums
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WHERE artist_id = artists.id AND cover_art_path IS NOT NULL
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ORDER BY created_at DESC LIMIT 1
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) cov ON true
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LEFT JOIN LATERAL (
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SELECT count(*) AS album_count
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FROM albums WHERE artist_id = artists.id
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) cnt ON true
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ORDER BY artists.sort_name, artists.name, artists.id
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LIMIT $1 OFFSET $2;
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-- name: DeleteArtistIfEmpty :one
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-- M7 #372: deletes the artist row only when it has no remaining albums
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-- AND no remaining tracks (defensive — tracks can in principle exist
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-- without an album, though the scanner doesn't write that shape today).
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DELETE FROM artists a
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WHERE a.id = $1
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AND NOT EXISTS (SELECT 1 FROM albums al WHERE al.artist_id = a.id)
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AND NOT EXISTS (SELECT 1 FROM tracks t WHERE t.artist_id = a.id)
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RETURNING a.id;
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