photoprism/internal/entity/album.go

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package entity
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import (
"fmt"
"os"
"strconv"
"strings"
"time"
"github.com/gosimple/slug"
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"github.com/jinzhu/gorm"
"github.com/photoprism/photoprism/internal/event"
"github.com/photoprism/photoprism/internal/form"
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"github.com/photoprism/photoprism/internal/maps"
"github.com/photoprism/photoprism/pkg/rnd"
"github.com/photoprism/photoprism/pkg/txt"
"github.com/ulule/deepcopier"
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)
const (
AlbumDefault = "album"
AlbumFolder = "folder"
AlbumMoment = "moment"
AlbumMonth = "month"
AlbumState = "state"
)
type Albums []Album
// Album represents a photo album
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type Album struct {
ID uint `gorm:"primary_key" json:"ID" yaml:"-"`
AlbumUID string `gorm:"type:VARBINARY(42);unique_index;" json:"UID" yaml:"UID"`
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ParentUID string `gorm:"type:VARBINARY(42);default:'';" json:"ParentUID,omitempty" yaml:"ParentUID,omitempty"`
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AlbumSlug string `gorm:"type:VARBINARY(160);index;" json:"Slug" yaml:"Slug"`
AlbumPath string `gorm:"type:VARBINARY(500);index;" json:"Path,omitempty" yaml:"Path,omitempty"`
AlbumType string `gorm:"type:VARBINARY(8);default:'album';" json:"Type" yaml:"Type,omitempty"`
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AlbumTitle string `gorm:"type:VARCHAR(160);index;" json:"Title" yaml:"Title"`
AlbumLocation string `gorm:"type:VARCHAR(160);" json:"Location" yaml:"Location,omitempty"`
AlbumCategory string `gorm:"type:VARCHAR(100);index;" json:"Category" yaml:"Category,omitempty"`
AlbumCaption string `gorm:"type:TEXT;" json:"Caption" yaml:"Caption,omitempty"`
AlbumDescription string `gorm:"type:TEXT;" json:"Description" yaml:"Description,omitempty"`
AlbumNotes string `gorm:"type:TEXT;" json:"Notes" yaml:"Notes,omitempty"`
AlbumFilter string `gorm:"type:VARBINARY(1024);" json:"Filter" yaml:"Filter,omitempty"`
AlbumOrder string `gorm:"type:VARBINARY(32);" json:"Order" yaml:"Order,omitempty"`
AlbumTemplate string `gorm:"type:VARBINARY(255);" json:"Template" yaml:"Template,omitempty"`
AlbumState string `gorm:"type:VARCHAR(100);index;" json:"State" yaml:"State,omitempty"`
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AlbumCountry string `gorm:"type:VARBINARY(2);index:idx_albums_country_year_month;default:'zz';" json:"Country" yaml:"Country,omitempty"`
AlbumYear int `gorm:"index:idx_albums_ymd;index:idx_albums_country_year_month;" json:"Year" yaml:"Year,omitempty"`
AlbumMonth int `gorm:"index:idx_albums_ymd;index:idx_albums_country_year_month;" json:"Month" yaml:"Month,omitempty"`
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AlbumDay int `gorm:"index:idx_albums_ymd;" json:"Day" yaml:"Day,omitempty"`
AlbumFavorite bool `json:"Favorite" yaml:"Favorite,omitempty"`
AlbumPrivate bool `json:"Private" yaml:"Private,omitempty"`
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Thumb string `gorm:"type:VARBINARY(128);index;default:'';" json:"Thumb" yaml:"Thumb,omitempty"`
ThumbSrc string `gorm:"type:VARBINARY(8);default:'';" json:"ThumbSrc,omitempty" yaml:"ThumbSrc,omitempty"`
CreatedAt time.Time `json:"CreatedAt" yaml:"CreatedAt,omitempty"`
UpdatedAt time.Time `json:"UpdatedAt" yaml:"UpdatedAt,omitempty"`
DeletedAt *time.Time `sql:"index" json:"DeletedAt" yaml:"DeletedAt,omitempty"`
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Photos PhotoAlbums `gorm:"foreignkey:AlbumUID;association_foreignkey:AlbumUID;" json:"-" yaml:"Photos,omitempty"`
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}
// TableName returns the entity database table name.
func (Album) TableName() string {
return "albums"
}
// AddPhotoToAlbums adds a photo UID to multiple albums and automatically creates them if needed.
func AddPhotoToAlbums(photo string, albums []string) (err error) {
if photo == "" || len(albums) == 0 {
// Do nothing.
return nil
}
if !rnd.IsPPID(photo, 'p') {
return fmt.Errorf("album: invalid photo uid %s", photo)
}
for _, album := range albums {
var aUID string
if album == "" {
log.Debugf("album: empty album identifier while adding photo %s", photo)
continue
}
if rnd.IsPPID(album, 'a') {
aUID = album
} else {
a := NewAlbum(album, AlbumDefault)
if err = a.Find(); err == nil {
aUID = a.AlbumUID
} else if err = a.Create(); err == nil {
aUID = a.AlbumUID
} else {
log.Errorf("album: %s (add photo %s to albums)", err.Error(), photo)
}
}
if aUID != "" {
entry := PhotoAlbum{AlbumUID: aUID, PhotoUID: photo, Hidden: false}
if err = entry.Save(); err != nil {
log.Errorf("album: %s (add photo %s to albums)", err.Error(), photo)
}
}
}
return err
}
// NewAlbum creates a new album; default name is current month and year
func NewAlbum(albumTitle, albumType string) *Album {
now := TimeStamp()
if albumType == "" {
albumType = AlbumDefault
}
result := &Album{
AlbumOrder: SortOrderOldest,
AlbumType: albumType,
CreatedAt: now,
UpdatedAt: now,
}
result.SetTitle(albumTitle)
return result
}
// NewFolderAlbum creates a new folder album.
func NewFolderAlbum(albumTitle, albumPath, albumFilter string) *Album {
albumSlug := slug.Make(albumPath)
if albumTitle == "" || albumSlug == "" || albumPath == "" || albumFilter == "" {
return nil
}
now := TimeStamp()
result := &Album{
AlbumOrder: SortOrderAdded,
AlbumType: AlbumFolder,
AlbumTitle: albumTitle,
AlbumSlug: albumSlug,
AlbumPath: albumPath,
AlbumFilter: albumFilter,
CreatedAt: now,
UpdatedAt: now,
}
return result
}
// NewMomentsAlbum creates a new moment.
func NewMomentsAlbum(albumTitle, albumSlug, albumFilter string) *Album {
if albumTitle == "" || albumSlug == "" || albumFilter == "" {
return nil
}
now := TimeStamp()
result := &Album{
AlbumOrder: SortOrderOldest,
AlbumType: AlbumMoment,
AlbumTitle: albumTitle,
AlbumSlug: albumSlug,
AlbumFilter: albumFilter,
CreatedAt: now,
UpdatedAt: now,
}
return result
}
// NewStateAlbum creates a new moment.
func NewStateAlbum(albumTitle, albumSlug, albumFilter string) *Album {
if albumTitle == "" || albumSlug == "" || albumFilter == "" {
return nil
}
now := TimeStamp()
result := &Album{
AlbumOrder: SortOrderNewest,
AlbumType: AlbumState,
AlbumTitle: albumTitle,
AlbumSlug: albumSlug,
AlbumFilter: albumFilter,
CreatedAt: now,
UpdatedAt: now,
}
return result
}
// NewMonthAlbum creates a new month album.
func NewMonthAlbum(albumTitle, albumSlug string, year, month int) *Album {
if albumTitle == "" || albumSlug == "" || year == 0 || month == 0 {
return nil
}
f := form.PhotoSearch{
Year: strconv.Itoa(year),
Month: strconv.Itoa(month),
Public: true,
}
now := TimeStamp()
result := &Album{
AlbumOrder: SortOrderOldest,
AlbumType: AlbumMonth,
AlbumTitle: albumTitle,
AlbumSlug: albumSlug,
AlbumFilter: f.Serialize(),
AlbumYear: year,
AlbumMonth: month,
CreatedAt: now,
UpdatedAt: now,
}
return result
}
// FindAlbumBySlug finds a matching album or returns nil.
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func FindAlbumBySlug(albumSlug, albumType string) *Album {
result := Album{}
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if err := UnscopedDb().Where("album_slug = ? AND album_type = ?", albumSlug, albumType).First(&result).Error; err != nil {
return nil
}
return &result
}
// FindFolderAlbum finds a matching folder album or returns nil.
func FindFolderAlbum(albumPath string) *Album {
albumPath = strings.Trim(albumPath, string(os.PathSeparator))
albumSlug := slug.Make(albumPath)
if albumSlug == "" {
return nil
}
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result := Album{}
if err := UnscopedDb().Where("album_slug = ? AND album_type = ?", albumSlug, AlbumFolder).First(&result).Error; err != nil {
return nil
}
return &result
}
// Find returns an entity from the database.
func (m *Album) Find() error {
if rnd.IsPPID(m.AlbumUID, 'a') {
if err := UnscopedDb().First(m, "album_uid = ?", m.AlbumUID).Error; err != nil {
return err
}
}
if err := UnscopedDb().First(m, "album_slug = ? AND album_type = ?", m.AlbumSlug, m.AlbumType).Error; err != nil {
return err
}
return nil
}
// BeforeCreate creates a random UID if needed before inserting a new row to the database.
func (m *Album) BeforeCreate(scope *gorm.Scope) error {
if rnd.IsUID(m.AlbumUID, 'a') {
return nil
}
return scope.SetColumn("AlbumUID", rnd.PPID('a'))
}
// String returns the id or name as string.
func (m *Album) String() string {
if m.AlbumSlug != "" {
return m.AlbumSlug
}
if m.AlbumTitle != "" {
return txt.Quote(m.AlbumTitle)
}
if m.AlbumUID != "" {
return m.AlbumUID
}
return "[unknown album]"
}
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// IsMoment tests if the album is of type moment.
func (m *Album) IsMoment() bool {
return m.AlbumType == AlbumMoment
}
// SetTitle changes the album name.
func (m *Album) SetTitle(title string) {
title = strings.TrimSpace(title)
if title == "" {
title = m.CreatedAt.Format("January 2006")
}
m.AlbumTitle = txt.Clip(title, txt.ClipDefault)
if m.AlbumType == AlbumDefault || m.AlbumSlug == "" {
if len(m.AlbumTitle) < txt.ClipSlug {
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m.AlbumSlug = txt.Slug(m.AlbumTitle)
} else {
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m.AlbumSlug = txt.Slug(m.AlbumTitle) + "-" + m.AlbumUID
}
}
if m.AlbumSlug == "" {
m.AlbumSlug = "-"
}
}
// UpdateState updates the album location.
func (m *Album) UpdateState(stateName, countryCode string) error {
if stateName == "" || countryCode == "" {
return nil
}
changed := false
countryName := maps.CountryName(countryCode)
if m.AlbumCountry != countryCode {
m.AlbumCountry = countryCode
changed = true
}
if changed || m.AlbumLocation == "" {
m.AlbumLocation = countryName
changed = true
}
if m.AlbumState != stateName {
m.AlbumState = stateName
changed = true
}
if !changed {
return nil
}
m.AlbumTitle = stateName
return m.Updates(Values{"album_title": m.AlbumTitle, "album_location": m.AlbumLocation, "album_country": m.AlbumCountry, "album_state": m.AlbumState})
}
// SaveForm updates the entity using form data and stores it in the database.
func (m *Album) SaveForm(f form.Album) error {
if err := deepcopier.Copy(m).From(f); err != nil {
return err
}
if f.AlbumCategory != "" {
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m.AlbumCategory = txt.Clip(txt.Title(f.AlbumCategory), txt.ClipCategory)
}
if f.AlbumTitle != "" {
m.SetTitle(f.AlbumTitle)
}
return Db().Save(m).Error
}
// Update sets a new value for a database column.
func (m *Album) Update(attr string, value interface{}) error {
return UnscopedDb().Model(m).UpdateColumn(attr, value).Error
}
// Updates multiple columns in the database.
func (m *Album) Updates(values interface{}) error {
return UnscopedDb().Model(m).UpdateColumns(values).Error
}
// UpdateFolder updates the path, filter and slug for a folder album.
func (m *Album) UpdateFolder(albumPath, albumFilter string) error {
albumPath = strings.Trim(albumPath, string(os.PathSeparator))
albumSlug := slug.Make(albumPath)
if albumSlug == "" {
return nil
}
if err := UnscopedDb().Model(m).UpdateColumns(map[string]interface{}{
"AlbumPath": albumPath,
"AlbumFilter": albumFilter,
"AlbumSlug": albumSlug,
}).Error; err != nil {
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return err
} else if err := UnscopedDb().Exec("UPDATE albums SET album_path = NULL WHERE album_path = ? AND id <> ?", albumPath, m.ID).Error; err != nil {
return err
}
return nil
}
// Save updates the existing or inserts a new row.
func (m *Album) Save() error {
return Db().Save(m).Error
}
// Create inserts a new row to the database.
func (m *Album) Create() error {
if err := Db().Create(m).Error; err != nil {
return err
}
switch m.AlbumType {
case AlbumDefault:
event.Publish("count.albums", event.Data{"count": 1})
case AlbumMoment:
event.Publish("count.moments", event.Data{"count": 1})
case AlbumMonth:
event.Publish("count.months", event.Data{"count": 1})
case AlbumFolder:
event.Publish("count.folders", event.Data{"count": 1})
}
return nil
}
// Delete marks the entity as deleted in the database.
func (m *Album) Delete() error {
if m.Deleted() {
return nil
}
if err := Db().Delete(m).Error; err != nil {
return err
}
switch m.AlbumType {
case AlbumDefault:
event.Publish("count.albums", event.Data{"count": -1})
case AlbumMoment:
event.Publish("count.moments", event.Data{"count": -1})
case AlbumMonth:
event.Publish("count.months", event.Data{"count": -1})
case AlbumFolder:
event.Publish("count.folders", event.Data{"count": -1})
}
return nil
}
// DeletePermanently permanently removes an album from the index.
func (m *Album) DeletePermanently() error {
albumType := m.AlbumType
wasDeleted := m.Deleted()
if err := UnscopedDb().Delete(m).Error; err != nil {
return err
}
if !wasDeleted {
switch albumType {
case AlbumDefault:
event.Publish("count.albums", event.Data{"count": -1})
case AlbumMoment:
event.Publish("count.moments", event.Data{"count": -1})
case AlbumMonth:
event.Publish("count.months", event.Data{"count": -1})
case AlbumFolder:
event.Publish("count.folders", event.Data{"count": -1})
}
}
return nil
}
// Deleted tests if the entity is deleted.
func (m *Album) Deleted() bool {
return m.DeletedAt != nil
}
// Restore restores the entity in the database.
func (m *Album) Restore() error {
if !m.Deleted() {
return nil
}
if err := UnscopedDb().Model(m).Update("DeletedAt", nil).Error; err != nil {
return err
}
m.DeletedAt = nil
switch m.AlbumType {
case AlbumDefault:
event.Publish("count.albums", event.Data{"count": 1})
case AlbumMoment:
event.Publish("count.moments", event.Data{"count": 1})
case AlbumMonth:
event.Publish("count.months", event.Data{"count": 1})
case AlbumFolder:
event.Publish("count.folders", event.Data{"count": 1})
}
return nil
}
// Title returns the album title.
func (m *Album) Title() string {
return m.AlbumTitle
}
// ZipName returns the zip download filename.
func (m *Album) ZipName() string {
s := slug.Make(m.AlbumTitle)
if len(s) < 2 {
s = fmt.Sprintf("photoprism-album-%s", m.AlbumUID)
}
return fmt.Sprintf("%s.zip", s)
}
// AddPhotos adds photos to an existing album.
func (m *Album) AddPhotos(UIDs []string) (added PhotoAlbums) {
for _, uid := range UIDs {
entry := PhotoAlbum{AlbumUID: m.AlbumUID, PhotoUID: uid, Hidden: false}
if err := entry.Save(); err != nil {
log.Errorf("album: %s (add to album %s)", err.Error(), m)
} else {
added = append(added, entry)
}
}
return added
}
// RemovePhotos removes photos from an album.
func (m *Album) RemovePhotos(UIDs []string) (removed PhotoAlbums) {
for _, uid := range UIDs {
entry := PhotoAlbum{AlbumUID: m.AlbumUID, PhotoUID: uid, Hidden: true}
if err := entry.Save(); err != nil {
log.Errorf("album: %s (remove from album %s)", err.Error(), m)
} else {
removed = append(removed, entry)
}
}
return removed
}
// Links returns all share links for this entity.
func (m *Album) Links() Links {
return FindLinks("", m.AlbumUID)
}