photoprism/internal/entity/album.go
Michael Mayer 8fa1cb9392 Add favorite places
Signed-off-by: Michael Mayer <michael@liquidbytes.net>
2020-06-08 18:32:51 +02:00

367 lines
9.5 KiB
Go

package entity
import (
"fmt"
"strings"
"time"
"github.com/gosimple/slug"
"github.com/jinzhu/gorm"
"github.com/photoprism/photoprism/internal/event"
"github.com/photoprism/photoprism/internal/form"
"github.com/photoprism/photoprism/pkg/rnd"
"github.com/photoprism/photoprism/pkg/txt"
"github.com/ulule/deepcopier"
)
const (
AlbumDefault = "album"
AlbumFolder = "folder"
AlbumMoment = "moment"
AlbumMonth = "month"
AlbumState = "state"
)
type Albums []Album
// Album represents a photo album
type Album struct {
ID uint `gorm:"primary_key" json:"ID" yaml:"-"`
AlbumUID string `gorm:"type:varbinary(36);unique_index;" json:"UID" yaml:"UID"`
CoverUID string `gorm:"type:varbinary(36);" json:"CoverUID" yaml:"CoverUID,omitempty"`
FolderUID string `gorm:"type:varbinary(36);index;" json:"FolderUID" yaml:"FolderUID,omitempty"`
AlbumSlug string `gorm:"type:varbinary(255);index;" json:"Slug" yaml:"Slug"`
AlbumType string `gorm:"type:varbinary(8);default:'album';" json:"Type" yaml:"Type,omitempty"`
AlbumTitle string `gorm:"type:varchar(255);" json:"Title" yaml:"Title"`
AlbumCategory string `gorm:"type:varchar(255);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"`
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_country_year_month;" json:"Year" yaml:"Year,omitempty"`
AlbumMonth int `gorm:"index:idx_albums_country_year_month;" json:"Month" yaml:"Month,omitempty"`
AlbumFavorite bool `json:"Favorite" yaml:"Favorite,omitempty"`
AlbumPrivate bool `json:"Private" yaml:"Private,omitempty"`
Links []Link `gorm:"foreignkey:share_uid;association_foreignkey:album_uid" json:"Links" yaml:"-"`
CreatedAt time.Time `json:"CreatedAt" yaml:"-"`
UpdatedAt time.Time `json:"UpdatedAt" yaml:"-"`
DeletedAt *time.Time `sql:"index" json:"-" yaml:"-"`
}
// 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 := time.Now().UTC()
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, albumSlug, albumFilter string) *Album {
if albumTitle == "" || albumSlug == "" || albumFilter == "" {
return nil
}
now := time.Now().UTC()
result := &Album{
AlbumOrder: SortOrderOldest,
AlbumType: AlbumFolder,
AlbumTitle: albumTitle,
AlbumSlug: albumSlug,
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 := time.Now().UTC()
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 := time.Now().UTC()
result := &Album{
AlbumOrder: SortOrderOldest,
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: year,
Month: month,
Public: true,
}
now := time.Now().UTC()
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.
func FindAlbumBySlug(slug, albumType string) *Album {
result := Album{}
if err := UnscopedDb().Where("album_slug = ? AND album_type = ?", slug, albumType).First(&result).Error; err != nil {
return nil
}
return &result
}
// Find updates the entity with values from the database.
func (m *Album) Find() error {
if rnd.IsPPID(m.AlbumUID, 'a') {
log.Debugf("IS PPID: %s", m.AlbumUID)
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]"
}
// Checks 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 {
if len(m.AlbumTitle) < txt.ClipSlug {
m.AlbumSlug = slug.Make(m.AlbumTitle)
} else {
m.AlbumSlug = slug.Make(txt.Clip(m.AlbumTitle, txt.ClipSlug)) + "-" + m.AlbumUID
}
}
}
// Saves 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 != "" {
m.AlbumCategory = txt.Title(txt.Clip(f.AlbumCategory, txt.ClipKeyword))
}
if f.AlbumTitle != "" {
m.SetTitle(f.AlbumTitle)
}
return Db().Save(m).Error
}
// Updates a column in the database.
func (m *Album) Update(attr string, value interface{}) error {
return UnscopedDb().Model(m).UpdateColumn(attr, value).Error
}
// 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
}
// Returns the album title.
func (m *Album) Title() string {
return m.AlbumTitle
}
// AddPhotos adds photos to an existing album.
func (m *Album) AddPhotos(UIDs []string) (added []PhotoAlbum) {
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 []PhotoAlbum) {
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
}