精简后的项目：仅保留 api/ui 源码、文档、构建依赖

api/graphql/resolvers/user.util.go

@@ -0,0 +1,54 @@
+package resolvers
+
+import (
+	"os"
+	"path"
+	"strconv"
+
+	"github.com/photoview/photoview/api/graphql/models"
+	"github.com/photoview/photoview/api/scanner/face_detection"
+	"github.com/photoview/photoview/api/utils"
+	"gorm.io/gorm"
+)
+
+func cleanup(tx *gorm.DB, albumID int, childAlbumIDs []int) ([]int, error) {
+	var userAlbumCount int
+	var deletedAlbumIDs []int = nil
+
+	if err := tx.Raw("SELECT COUNT(user_id) FROM user_albums WHERE album_id = ?",
+		albumID).Scan(&userAlbumCount).Error; err != nil {
+
+		return nil, err
+	}
+
+	if userAlbumCount == 0 {
+		deletedAlbumIDs = append(childAlbumIDs, albumID)
+		childAlbumIDs = nil
+		// Delete albums from database
+		if err := tx.Delete(&models.Album{}, "id IN (?)", deletedAlbumIDs).Error; err != nil {
+			deletedAlbumIDs = nil
+			return nil, err
+		}
+	}
+	return deletedAlbumIDs, nil
+}
+
+func clearCacheAndReloadFaces(db *gorm.DB, deletedAlbumIDs []int) error {
+	if deletedAlbumIDs != nil {
+		// Delete albums from cache
+		for _, id := range deletedAlbumIDs {
+			cacheAlbumPath := path.Join(utils.MediaCachePath(), strconv.Itoa(id))
+
+			if err := os.RemoveAll(cacheAlbumPath); err != nil {
+				return err
+			}
+		}
+		// Reload faces as media might have been deleted
+		if face_detection.GlobalFaceDetector != nil {
+			if err := face_detection.GlobalFaceDetector.ReloadFacesFromDatabase(db); err != nil {
+				return err
+			}
+		}
+	}
+	return nil
+}