use json_array_length

src/plugins/playlists.js

@@ -153,17 +153,15 @@ class PlaylistsRepository {
  const { db } = this.#uw;
 
  const playlist = await db.selectFrom('playlists')
- .leftJoin('playlistItems', 'playlistItems.playlistID', 'playlists.id')
  .where('userID', '=', user.id)
  .where('playlists.id', '=', id)
- .groupBy('playlists.id')
  .select([
  'playlists.id',
  'playlists.userID',
  'playlists.name',
  'playlists.createdAt',
  'playlists.updatedAt',
- db.fn.countAll().as('size'),
+ (eb) => sql`json_array_length(${eb.ref('playlists.items')})`.as('size'),
  ])
  .executeTakeFirst();
 
@@ -212,10 +210,13 @@ class PlaylistsRepository {
  const { db } = this.#uw;
 
  const playlists = await db.selectFrom('playlists')
- .leftJoin('playlistItems', 'playlistItems.playlistID', 'playlists.id')
  .where('userID', '=', user.id)
- .select(['playlists.id', 'name', db.fn.countAll().as('size'), 'playlists.createdAt'])
- .groupBy('playlists.id')
+ .select([
+ 'id',
+ 'name',
+ (eb) => sql`json_array_length(${eb.ref('items')})`.as('size'),
+ 'createdAt',
+ ])
  .execute();
 
  return playlists.map((playlist) => {
@@ -372,24 +373,26 @@ class PlaylistsRepository {
 
  const totalQuery = db.selectFrom('playlists')
  .select(sql`json_array_length(items)`.as('count'))
- .where('id', '=', playlist.id);
+ .where('id', '=', playlist.id)
+ .executeTakeFirstOrThrow();
 
  const filteredQuery = filter == null ? totalQuery : db.selectFrom('playlistItems')
  .select((eb) => eb.fn.countAll().as('count'))
  .where('playlistID', '=', playlist.id)
  .where((eb) => eb.or([
  eb('playlistItems.artist', 'like', filter),
  eb('playlistItems.title', 'like', filter),
- ]));
+ ]))
+ .executeTakeFirstOrThrow();
 
  const [
  playlistItemsRaw,
  filtered,
  total,
  ] = await Promise.all([
  query.execute(),
- filteredQuery.executeTakeFirstOrThrow(),
- totalQuery.executeTakeFirstOrThrow(),
+ filteredQuery,
+ totalQuery,
  ]);
 
  const playlistItems = playlistItemsRaw.map(playlistItemFromSelection);