func (s *Storage) DeleteThumbnails(parentAttId string, blob tenpu.BlobStorage, meta tenpu.MetaStorage) (err error) {
thumbs := s.ThumbnailByParentId(parentAttId)
// log.Println("Delete thumbnail num:", len(thumbs))
var thumbAttIds []string
for _, thumb := range thumbs {
thumbAttIds = append(thumbAttIds, thumb.BodyId)
}
for _, thumbAttId := range thumbAttIds {
err = blob.Delete(thumbAttId)
if err != nil && err != mgo.ErrNotFound {
return
}
err = meta.Remove(thumbAttId)
if err != nil {
return
}
}
err = s.RemoveAll(parentAttId)
return
}
