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improved Thumbnail generation performance (#1158)

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* improved Thumbnail generation performance

* unified SQL query style

* adjusted query

* changed query to make it more readable
This commit is contained in:
Andreas
2025-02-02 20:43:12 +01:00
committed by GitHub
parent b93d48f94e
commit 6d716a1f1e
1 changed files with 21 additions and 19 deletions
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40
api/graphql/models/album.go
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@@ -83,26 +83,28 @@ func GetParentsFromAlbums(db *gorm.DB, filter func(*gorm.DB) *gorm.DB, albumID i
func (a *Album) Thumbnail(db *gorm.DB) (*Media, error) {
var media Media
if a.CoverID == nil {
if err := db.Raw(`
WITH recursive sub_albums AS (
SELECT * FROM albums AS root WHERE id = ?
UNION ALL
SELECT child.* FROM albums AS child JOIN sub_albums ON child.parent_album_id = sub_albums.id
)
if a.CoverID != nil {
if err := db.First(&media, *a.CoverID).Error; err != nil {
return nil, err
}
return &media, nil
}
SELECT * FROM media WHERE media.album_id IN (
SELECT id FROM sub_albums
) AND media.id IN (
SELECT media_id FROM media_urls WHERE media_urls.media_id = media.id
) ORDER BY id LIMIT 1
`, a.ID).Find(&media).Error; err != nil {
return nil, err
}
} else {
if err := db.Where("id = ?", a.CoverID).Find(&media).Error; err != nil {
return nil, err
}
query := `
WITH RECURSIVE sub_albums AS (
SELECT id FROM albums WHERE id = ?
UNION ALL
SELECT children.id FROM albums AS children
INNER JOIN sub_albums ON children.parent_album_id = sub_albums.id
)
SELECT * FROM media
INNER JOIN media_urls ON media_urls.media_id = media.id
WHERE media.album_id IN (SELECT id FROM sub_albums)
LIMIT 1
`
if err := db.Raw(query, a.ID).Scan(&media).Error; err != nil {
return nil, err
}
return &media, nil