package entity import ( "sync" "github.com/jinzhu/gorm" "github.com/photoprism/photoprism/pkg/rnd" ) var photoMergeMutex = sync.Mutex{} // ResolvePrimary ensures there is only one primary file for a photo. func (m *Photo) ResolvePrimary() error { var file File if err := Db().Where("file_primary = 1 AND photo_id = ?", m.ID).Order("file_width DESC, file_hdr DESC").First(&file).Error; err == nil && file.ID > 0 { return file.ResolvePrimary() } return nil } // Stackable tests if the photo may be stacked. func (m *Photo) Stackable() bool { if !m.HasID() || m.PhotoStack == IsUnstacked || m.PhotoName == "" { return false } return true } // Identical returns identical photos that can be merged. func (m *Photo) Identical(includeMeta, includeUuid bool) (identical Photos, err error) { if !m.Stackable() { return identical, nil } includeMeta = includeMeta && m.TrustedLocation() && m.TrustedTime() includeUuid = includeUuid && rnd.IsUUID(m.UUID) switch { case includeMeta && includeUuid: if err := Db(). Where("(taken_at = ? AND taken_src = 'meta' AND place_src <> 'estimate' AND photo_stack > -1 AND cell_id = ? AND camera_serial = ? AND camera_id = ?) "+ "OR (uuid = ? AND photo_stack > -1)"+ "OR (photo_path = ? AND photo_name = ?)", m.TakenAt, m.CellID, m.CameraSerial, m.CameraID, m.UUID, m.PhotoPath, m.PhotoName). Order("photo_quality DESC, id ASC").Find(&identical).Error; err != nil { return identical, err } case includeMeta: if err := Db(). Where("(taken_at = ? AND taken_src = 'meta' AND place_src <> 'estimate' AND photo_stack > -1 AND cell_id = ? AND camera_serial = ? AND camera_id = ?) "+ "OR (photo_path = ? AND photo_name = ?)", m.TakenAt, m.CellID, m.CameraSerial, m.CameraID, m.PhotoPath, m.PhotoName). Order("photo_quality DESC, id ASC").Find(&identical).Error; err != nil { return identical, err } case includeUuid: if err := Db(). Where("(uuid = ? AND photo_stack > -1) OR (photo_path = ? AND photo_name = ?)", m.UUID, m.PhotoPath, m.PhotoName). Order("photo_quality DESC, id ASC").Find(&identical).Error; err != nil { return identical, err } default: if err := Db(). Where("photo_path = ? AND photo_name = ?", m.PhotoPath, m.PhotoName). Order("photo_quality DESC, id ASC").Find(&identical).Error; err != nil { return identical, err } } return identical, nil } // Merge photo with identical ones. func (m *Photo) Merge(mergeMeta, mergeUuid bool) (original Photo, merged Photos, err error) { photoMergeMutex.Lock() defer photoMergeMutex.Unlock() identical, err := m.Identical(mergeMeta, mergeUuid) if len(identical) < 2 || err != nil { return Photo{}, merged, err } logResult := func(res *gorm.DB) { if res.Error != nil { log.Errorf("merge: %s", res.Error.Error()) err = res.Error } } for i, merge := range identical { if i == 0 { original = merge log.Debugf("photo: merging id %d with %d identical", original.ID, len(identical)-1) continue } deleted := TimeStamp() logResult(UnscopedDb().Exec("UPDATE `files` SET photo_id = ?, photo_uid = ?, file_primary = 0 WHERE photo_id = ?", original.ID, original.PhotoUID, merge.ID)) logResult(UnscopedDb().Exec("UPDATE `photos` SET photo_quality = -1, deleted_at = ? WHERE id = ?", TimeStamp(), merge.ID)) switch DbDialect() { case MySQL: logResult(UnscopedDb().Exec("UPDATE IGNORE `photos_keywords` SET `photo_id` = ? WHERE photo_id = ?", original.ID, merge.ID)) logResult(UnscopedDb().Exec("UPDATE IGNORE `photos_labels` SET `photo_id` = ? WHERE photo_id = ?", original.ID, merge.ID)) logResult(UnscopedDb().Exec("UPDATE IGNORE `photos_albums` SET `photo_uid` = ? WHERE photo_uid = ?", original.PhotoUID, merge.PhotoUID)) case SQLite3: logResult(UnscopedDb().Exec("UPDATE OR IGNORE `photos_keywords` SET `photo_id` = ? WHERE photo_id = ?", original.ID, merge.ID)) logResult(UnscopedDb().Exec("UPDATE OR IGNORE `photos_labels` SET `photo_id` = ? WHERE photo_id = ?", original.ID, merge.ID)) logResult(UnscopedDb().Exec("UPDATE OR IGNORE `photos_albums` SET `photo_uid` = ? WHERE photo_uid = ?", original.PhotoUID, merge.PhotoUID)) default: log.Warnf("sql: unsupported dialect %s", DbDialect()) } merge.DeletedAt = &deleted merge.PhotoQuality = -1 merged = append(merged, merge) } if original.ID != m.ID { deleted := TimeStamp() m.DeletedAt = &deleted m.PhotoQuality = -1 } return original, merged, err }