Function SoftDeleteFile

api/model/file.go:1826–1891

SoftDeleteFile 执行软删除：目标标记主动删除，未主动删除的子级批量被动删除

(eid int64, fileID int64, userID int64)

// SoftDeleteFile 执行软删除：目标标记主动删除，未主动删除的子级批量被动删除
func SoftDeleteFile(eid int64, fileID int64, userID int64) error {
	now := time.Now().UTC().UnixMilli()

	file, err := GetFileByID(eid, fileID)
	if err != nil {
		return err
	}

	tx := DB.Begin()
	defer func() {
		if r := recover(); r != nil {
			tx.Rollback()
		}
	}()

	// 标记目标为主动删除
	if err := tx.Model(&File{}).
		Where("eid = ? AND id = ? AND is_deleted = ?", eid, fileID, false).
		Updates(map[string]interface{}{
			"is_deleted":        true,
			"is_active_deleted": true,
			"deleted_by":        userID,
			"deleted_at":        now,
		}).Error; err != nil {
		tx.Rollback()
		return err
	}

	// 标记未主动删除的子级为被动删除（仅当前未删除的）
	if err := tx.Model(&File{}).
		Where("eid = ? AND library_id = ? AND path LIKE ? AND is_deleted = ?", eid, file.LibraryID, file.Path+"/%", false).
		Updates(map[string]interface{}{
			"is_deleted":        true,
			"is_active_deleted": false,
			"deleted_by":        userID,
			"deleted_at":        now,
		}).Error; err != nil {
		tx.Rollback()
		return err
	}

	var affectedFileIDs []int64
	if err := tx.Model(&File{}).
		Select("id").
		Where("eid = ? AND library_id = ? AND is_deleted = ? AND (id = ? OR path LIKE ?)", eid, file.LibraryID, true, fileID, file.Path+"/%").
		Pluck("id", &affectedFileIDs).Error; err != nil {
		tx.Rollback()
		return err
	}
	if len(affectedFileIDs) > 0 {
		if err := tx.Model(&EntityChunkRelation{}).
			Where("eid = ? AND file_id IN ? AND status <> ?", eid, affectedFileIDs, EntityRelationStatusDeleted).
			Update("status", EntityRelationStatusDeleted).Error; err != nil {
			tx.Rollback()
			return err
		}
	}