From 7d2c80378a6eca3a82144d01444ac91cd60a2541 Mon Sep 17 00:00:00 2001
From: xmdhs <xmdhss@gmail.com>
Date: Tue, 12 Sep 2023 13:21:51 +0800
Subject: [PATCH] fix cache

---
 db/cache/cache.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/db/cache/cache.go b/db/cache/cache.go
index 1ea41b5..e952760 100644
--- a/db/cache/cache.go
+++ b/db/cache/cache.go
@@ -21,6 +21,9 @@ func (c CacheHelp[T]) Get(k []byte) (T, error) {
 	if err != nil {
 		return t, err
 	}
+	if b == nil {
+		return t, nil
+	}
 	err = json.Unmarshal(b, &t)
 	if err != nil {
 		return t, err