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Optimize GetAll genres query

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Deluan
2021-07-19 15:30:22 -04:00
committed by Deluan Quintão
parent 1471e1240d
commit b6e9ec4db4
3 changed files with 8 additions and 17 deletions
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persistence/genre_repository.go
+4 -8
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@@ -26,14 +26,10 @@ func NewGenreRepository(ctx context.Context, o orm.Ormer) model.GenreRepository
return r
}
func (r *genreRepository) GetAll() (model.Genres, error) {
sq := Select("genre.*",
"count(distinct a.album_id) as album_count",
"count(distinct f.media_file_id) as song_count").
From(r.tableName).
LeftJoin("album_genres a on a.genre_id = genre.id").
LeftJoin("media_file_genres f on f.genre_id = genre.id").
GroupBy("genre.id")
func (r *genreRepository) GetAll(opt ...model.QueryOptions) (model.Genres, error) {
sq := r.newSelect(opt...).Columns("genre.id", "genre.name", "a.album_count", "m.song_count").
LeftJoin("(select ag.genre_id, count(ag.album_id) as album_count from album_genres ag group by ag.genre_id) a on a.genre_id = genre.id").
LeftJoin("(select mg.genre_id, count(mg.media_file_id) as song_count from media_file_genres mg group by mg.genre_id) m on m.genre_id = genre.id")
res := model.Genres{}
err := r.queryAll(sq, &res)
return res, err