photoprism/internal/entity/photo.go
Michael Mayer a8c48ab40e Initial API and entities for link sharing
Signed-off-by: Michael Mayer <michael@liquidbytes.net>
2020-04-08 13:24:06 +02:00

236 lines
7.7 KiB
Go

package entity
import (
"strings"
"time"
"github.com/jinzhu/gorm"
"github.com/photoprism/photoprism/internal/form"
"github.com/photoprism/photoprism/pkg/rnd"
"github.com/photoprism/photoprism/pkg/txt"
"github.com/ulule/deepcopier"
)
// Photo represents a photo, all its properties, and link to all its images and sidecar files.
type Photo struct {
ID uint `gorm:"primary_key"`
TakenAt time.Time `gorm:"type:datetime;index:idx_photos_taken_uuid;" json:"TakenAt"`
PhotoUUID string `gorm:"type:varbinary(36);unique_index;index:idx_photos_taken_uuid;"`
PhotoPath string `gorm:"type:varbinary(512);index;"`
PhotoName string `gorm:"type:varbinary(256);"`
PhotoTitle string `json:"PhotoTitle"`
PhotoFavorite bool `json:"PhotoFavorite"`
PhotoPrivate bool `json:"PhotoPrivate"`
PhotoNSFW bool `json:"PhotoNSFW"`
PhotoStory bool `json:"PhotoStory"`
PhotoLat float64 `gorm:"index;" json:"PhotoLat"`
PhotoLng float64 `gorm:"index;" json:"PhotoLng"`
PhotoAltitude int `json:"PhotoAltitude"`
PhotoFocalLength int `json:"PhotoFocalLength"`
PhotoIso int `json:"PhotoIso"`
PhotoFNumber float64 `json:"PhotoFNumber"`
PhotoExposure string `gorm:"type:varbinary(64);" json:"PhotoExposure"`
CameraID uint `gorm:"index:idx_photos_camera_lens;" json:"CameraID"`
CameraSerial string `gorm:"type:varbinary(128);" json:"CameraSerial"`
LensID uint `gorm:"index:idx_photos_camera_lens;" json:"LensID"`
PlaceID string `gorm:"type:varbinary(16);index;" json:"PlaceID"`
LocationID string `gorm:"type:varbinary(16);index;" json:"LocationID"`
LocationEstimated bool `json:"LocationEstimated"`
PhotoCountry string `gorm:"index:idx_photos_country_year_month;" json:"PhotoCountry"`
PhotoYear int `gorm:"index:idx_photos_country_year_month;"`
PhotoMonth int `gorm:"index:idx_photos_country_year_month;"`
TimeZone string `gorm:"type:varbinary(64);" json:"TimeZone"`
TakenAtLocal time.Time `gorm:"type:datetime;"`
ModifiedTitle bool `json:"ModifiedTitle"`
ModifiedDescription bool `json:"ModifiedDescription"`
ModifiedDate bool `json:"ModifiedDate"`
ModifiedLocation bool `json:"ModifiedLocation"`
ModifiedCamera bool `json:"ModifiedCamera"`
Description Description `json:"Description"`
Camera *Camera `json:"Camera"`
Lens *Lens `json:"Lens"`
Location *Location `json:"-"`
Place *Place `json:"-"`
Links []Link `gorm:"foreignkey:ShareUUID;association_foreignkey:PhotoUUID"`
Keywords []Keyword `json:"-"`
Albums []Album `json:"-"`
Files []File
Labels []PhotoLabel
CreatedAt time.Time
UpdatedAt time.Time
DeletedAt *time.Time `sql:"index"`
}
// SavePhoto updates a model using form data and persists it in the database.
func SavePhoto(model Photo, form form.Photo, db *gorm.DB) error {
if err := deepcopier.Copy(&model).From(form); err != nil {
return err
}
if form.Description.PhotoID == model.ID {
if err := deepcopier.Copy(&model.Description).From(form.Description); err != nil {
return err
}
model.Description.PhotoKeywords = strings.Join(txt.UniqueKeywords(model.Description.PhotoKeywords), ", ")
}
model.IndexKeywords(db)
return db.Save(&model).Error
}
// BeforeCreate computes a unique UUID, and set a default takenAt before indexing a new photo
func (m *Photo) BeforeCreate(scope *gorm.Scope) error {
if err := scope.SetColumn("PhotoUUID", rnd.PPID('p')); err != nil {
return err
}
if m.TakenAt.IsZero() || m.TakenAtLocal.IsZero() {
now := time.Now()
if err := scope.SetColumn("TakenAt", now); err != nil {
return err
}
if err := scope.SetColumn("TakenAtLocal", now); err != nil {
return err
}
}
return nil
}
// BeforeSave ensures the existence of TakenAt properties before indexing or updating a photo
func (m *Photo) BeforeSave(scope *gorm.Scope) error {
if m.TakenAt.IsZero() || m.TakenAtLocal.IsZero() {
now := time.Now()
if err := scope.SetColumn("TakenAt", now); err != nil {
return err
}
if err := scope.SetColumn("TakenAtLocal", now); err != nil {
return err
}
}
return nil
}
// IndexKeywords adds given keywords to the photo entry
func (m *Photo) IndexKeywords(db *gorm.DB) {
var keywordIds []uint
var keywords []string
// Add title, description and other keywords
keywords = append(keywords, txt.Keywords(m.PhotoTitle)...)
keywords = append(keywords, txt.Keywords(m.Description.PhotoDescription)...)
keywords = append(keywords, txt.Keywords(m.Description.PhotoKeywords)...)
keywords = append(keywords, txt.Keywords(m.Description.PhotoSubject)...)
keywords = append(keywords, txt.Keywords(m.Description.PhotoArtist)...)
keywords = txt.UniqueWords(keywords)
for _, w := range keywords {
kw := NewKeyword(w).FirstOrCreate(db)
if kw.Skip {
continue
}
keywordIds = append(keywordIds, kw.ID)
NewPhotoKeyword(m.ID, kw.ID).FirstOrCreate(db)
}
db.Where("photo_id = ? AND keyword_id NOT IN (?)", m.ID, keywordIds).Delete(&PhotoKeyword{})
}
// PreloadFiles prepares gorm scope to retrieve photo file
func (m *Photo) PreloadFiles(db *gorm.DB) {
q := db.NewScope(nil).DB().
Table("files").
Select(`files.*`).
Where("files.photo_id = ?", m.ID).
Order("files.file_primary DESC")
logError(q.Scan(&m.Files))
}
/* func (m *Photo) PreloadLabels(db *gorm.DB) {
q := db.NewScope(nil).DB().
Table("labels").
Select(`labels.*`).
Joins("JOIN photos_labels ON photos_labels.label_id = labels.id AND photos_labels.photo_id = ?", m.ID).
Where("labels.deleted_at IS NULL").
Order("labels.label_name ASC")
logError(q.Scan(&m.Labels))
} */
// PreloadKeywords prepares gorm scope to retrieve photo keywords
func (m *Photo) PreloadKeywords(db *gorm.DB) {
q := db.NewScope(nil).DB().
Table("keywords").
Select(`keywords.*`).
Joins("JOIN photos_keywords ON photos_keywords.keyword_id = keywords.id AND photos_keywords.photo_id = ?", m.ID).
Order("keywords.keyword ASC")
logError(q.Scan(&m.Keywords))
}
// PreloadAlbums prepares gorm scope to retrieve photo albums
func (m *Photo) PreloadAlbums(db *gorm.DB) {
q := db.NewScope(nil).DB().
Table("albums").
Select(`albums.*`).
Joins("JOIN photos_albums ON photos_albums.album_uuid = albums.album_uuid AND photos_albums.photo_uuid = ?", m.PhotoUUID).
Where("albums.deleted_at IS NULL").
Order("albums.album_name ASC")
logError(q.Scan(&m.Albums))
}
// PreloadMany prepares gorm scope to retrieve photo file, albums and keywords
func (m *Photo) PreloadMany(db *gorm.DB) {
m.PreloadFiles(db)
// m.PreloadLabels(db)
m.PreloadKeywords(db)
m.PreloadAlbums(db)
}
// NoLocation checks if the photo has no location
func (m *Photo) NoLocation() bool {
return m.LocationID == ""
}
// HasLocation checks if the photo has a location
func (m *Photo) HasLocation() bool {
return m.LocationID != ""
}
// NoPlace checks if the photo has no Place
func (m *Photo) NoPlace() bool {
return len(m.PlaceID) < 2
}
// HasPlace checks if the photo has a Place
func (m *Photo) HasPlace() bool {
return len(m.PlaceID) >= 2
}
// NoTitle checks if the photo has no Title
func (m *Photo) NoTitle() bool {
return m.PhotoTitle == ""
}
// NoCameraSerial checks if the photo has no CameraSerial
func (m *Photo) NoCameraSerial() bool {
return m.CameraSerial == ""
}
// HasTitle checks if the photo has a Title
func (m *Photo) HasTitle() bool {
return m.PhotoTitle != ""
}