error when no type

routers/repo/dataset.go

@@ -49,6 +49,12 @@ func DatasetIndex(ctx *context.Context) {
 		ctx.NotFound("GetDatasetByRepo", err)
 		return
 	}
+
+	if ctx.Query("type") == "" {
+		log.Error("not found param type")
+		ctx.NotFound("type error", nil)
+		return
+	}
 	err = models.GetDatasetAttachments(ctx.QueryInt("type"), dataset)
 	if err != nil {
 		ctx.ServerError("GetDatasetAttachments", err)