// Update Albums Meta by Id
func updateMeta(albumId int) error {
a, ok := Albums[albumId]
if !ok {
return errors.New("Unknown AlbumId for meta update: " + strconv.Itoa(albumId))
}
var err error
if a.MetaInfo, err = model.AlbumMeta(a.AlbumId); err != nil {
return err
} else if err := model.UpdateMeta(a); err != nil {
return err
}
return nil
}
// Sync Album with photos.
// Can be partial or full
func syncAlbum(si *SyncItem) {
if si.FullSync {
log.Printf("Going full fs sync for album %s\n", si.Album.Alias)
} else {
log.Printf("Going partial sync for album %s\n", si.Album.Alias)
}
index := make(map[string]*model.Photo)
for _, p := range si.Album.Photos {
index[p.OriginalName] = p
}
var exists, nextId int
var newPhotos model.PhotoList
if si.FullSync {
nextId = si.Album.Photos.MaxPhotoId() + 1
} else {
nextId, _ = si.Album.MaxFilename()
nextId++
}
// critical section???
for _, p := range si.FsPhotos {
_, ok := index[p.OriginalName]
if !ok {
log.Println("Found new photo " + p.OriginalName)
FillPhoto(si.Album, p, nextId)
if err := CreatePhotos(si.Album, p); err != nil {
log.Println(err)
continue
}
newPhotos = append(newPhotos, p)
nextId++
} else {
exists++
}
} //eof
if len(newPhotos) > 0 {
tx, err := model.DB().Begin()
if err != nil {
log.Println(err)
}
if err := model.AddPhotos(newPhotos); err != nil {
log.Println(err)
if err = tx.Rollback(); err != nil {
log.Println(err)
}
} else {
// Update Meta
if si.Album.MetaInfo, err = model.AlbumMeta(si.Album.AlbumId); err != nil {
log.Println(err)
} else if err := model.UpdateMeta(si.Album); err != nil {
log.Println(err)
}
// Commit transaction
if err = tx.Commit(); err != nil {
log.Println(err)
}
}
}
log.Printf("Sync Done. %d new, %d exists\n", len(newPhotos), exists)
}