From b61b396acc49e38c230d93b533e99da4fd9ea674 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=BE=90=E8=81=AA?= <xucong.053@bytedance.com>
Date: Tue, 4 Jan 2022 21:14:33 +0800
Subject: [PATCH] feat: data-driven.

---
 models.go | 1 +
 1 file changed, 1 insertion(+)

diff --git a/models.go b/models.go
index 839234e8..cc55d77a 100644
--- a/models.go
+++ b/models.go
@@ -69,6 +69,7 @@ func (iter *Iterator) Next() (value map[string]interface{}) {
 	iter.Lock()
 	defer iter.Unlock()
 	if len(iter.data) == 0 {
+		iter.index++
 		return map[string]interface{}{}
 	}
 	if iter.strategy == strategyRandom {