Serialize EXIF data for images

platform/types/image.go

@@ -1,14 +1,39 @@
 package types
 
 import (
+	"encoding/json"
+
+	"github.com/Gleipnir-Technology/nidus-sync/config"
 	"github.com/google/uuid"
 )
 
+type Exif struct {
+	Created string `json:"created"`
+	Make    string `json:"make"`
+	Model   string `json:"model"`
+}
 type Image struct {
-	ExifMake     string    `db:"exif_make"`
-	ExifModel    string    `db:"exif_model"`
-	ExifDateTime string    `db:"exif_datetime"`
+	Exif         Exif      `db:"-" json:"exif"`
+	ExifMake     string    `db:"exif_make" json:"-"`
+	ExifModel    string    `db:"exif_model" json:"-"`
+	ExifDateTime string    `db:"exif_datetime" json:"-"`
 	Location     Location  `db:"location"`
 	NuisanceID   int32     `db:"nuisance_id"`
+	URLContent   string    `db:"-" json:"url_content"`
 	UUID         uuid.UUID `db:"uuid"`
 }
+
+func (i *Image) MarshalJSON() ([]byte, error) {
+	to_marshal := make(map[string]interface{}, 0)
+	to_marshal["exif"] = Exif{
+		Created: i.ExifDateTime,
+		Make:    i.ExifMake,
+		Model:   i.ExifModel,
+	}
+	to_marshal["location"] = i.Location
+	to_marshal["nuisance_id"] = i.NuisanceID
+	to_marshal["url_content"] = config.MakeURLNidus("/api/image/%s/content", i.UUID.String())
+	to_marshal["uuid"] = i.UUID
+
+	return json.Marshal(to_marshal)
+}