fix bug

routers/repo/attachment.go

@@ -203,24 +203,22 @@ func GetPresignedPutObjectURL(ctx *context.Context) {
 		return
 	}
 
-	uuid := ""
-	url := ""
-
 	if setting.Attachment.StoreType == storage.MinioStorageType {
-		uuid = gouuid.NewV4().String()
+		uuid := gouuid.NewV4().String()
 		url, err := storage.Attachments.PresignedPutURL(models.AttachmentRelativePath(uuid))
 		if err != nil {
 			ctx.ServerError("PresignedPutURL", err)
 			return
 		}
-		log.Trace(url)
+
+		ctx.JSON(200, map[string]string{
+			"uuid": uuid,
+			"url": url,
+		})
 	} else {
 		ctx.Error(404, "storage type is not enabled")
 		return
 	}
 
-	ctx.JSON(200, map[string]string{
-		"uuid": uuid,
-		"url": url,
-	})
+
 }