photoprism/internal/entity/camera.go
Michael Mayer b24d5c03a1 Use YAML files to save and restore photo metadata
Signed-off-by: Michael Mayer <michael@liquidbytes.net>
2020-05-18 22:18:58 +02:00

83 lines
2.3 KiB
Go

package entity
import (
"fmt"
"strings"
"time"
"github.com/gosimple/slug"
"github.com/photoprism/photoprism/pkg/txt"
)
// Camera model and make (as extracted from UpdateExif metadata)
type Camera struct {
ID uint `gorm:"primary_key" yaml:"CameraID"`
CameraSlug string `gorm:"type:varbinary(255);unique_index;" yaml:"Slug"`
CameraModel string `gorm:"type:varchar(255);" yaml:"Model"`
CameraMake string `gorm:"type:varchar(255);" yaml:"Make"`
CameraType string `gorm:"type:varchar(255);" yaml:"Type,omitempty"`
CameraDescription string `gorm:"type:text;" yaml:"Description,omitempty"`
CameraNotes string `gorm:"type:text;" yaml:"Notes,omitempty"`
CreatedAt time.Time `yaml:"-"`
UpdatedAt time.Time `yaml:"-"`
DeletedAt *time.Time `sql:"index" yaml:"-"`
}
var UnknownCamera = Camera{
CameraModel: "Unknown",
CameraMake: "",
CameraSlug: "zz",
}
// CreateUnknownCamera initializes the database with an unknown camera if not exists
func CreateUnknownCamera() {
UnknownCamera.FirstOrCreate()
}
// NewCamera creates a camera entity from a model name and a make name.
func NewCamera(modelName string, makeName string) *Camera {
modelName = txt.Clip(modelName, txt.ClipDefault)
makeName = txt.Clip(makeName, txt.ClipDefault)
if modelName == "" {
return &UnknownCamera
} else if strings.HasPrefix(modelName, makeName) {
modelName = strings.TrimSpace(modelName[len(makeName):])
}
var cameraSlug string
if makeName != "" {
cameraSlug = slug.Make(txt.Clip(makeName+" "+modelName, txt.ClipSlug))
} else {
cameraSlug = slug.Make(txt.Clip(modelName, txt.ClipSlug))
}
result := &Camera{
CameraModel: modelName,
CameraMake: makeName,
CameraSlug: cameraSlug,
}
return result
}
// FirstOrCreate checks if the camera model exist already in the database
func (m *Camera) FirstOrCreate() *Camera {
if err := Db().FirstOrCreate(m, "camera_model = ? AND camera_make = ?", m.CameraModel, m.CameraMake).Error; err != nil {
log.Errorf("camera: %s", err)
}
return m
}
// String returns a string designing the given Camera entity
func (m *Camera) String() string {
if m.CameraMake != "" && m.CameraModel != "" {
return fmt.Sprintf("%s %s", m.CameraMake, m.CameraModel)
} else if m.CameraModel != "" {
return m.CameraModel
}
return ""
}