From c9dceefb0f2ce53a758ed4beef5aee2e3ebb204d Mon Sep 17 00:00:00 2001
From: chenweijian <820961417@qq.com>
Date: Wed, 12 Jul 2023 17:48:56 +0800
Subject: [PATCH] =?UTF-8?q?=E9=BB=84=E9=92=BB=E4=B9=B0=E7=B2=89=E9=92=BB?=
MIME-Version: 1.0
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---
 resource/redisCli/util.go | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/resource/redisCli/util.go b/resource/redisCli/util.go
index b6b4f80..5c6fd4c 100644
--- a/resource/redisCli/util.go
+++ b/resource/redisCli/util.go
@@ -74,3 +74,26 @@ func DelCache(key string) error {
 	}
 	return nil
 }
+
+func DecrBy(key string, num int64) (int64, error) {
+	resNum, err := RedisClient.DecrBy(context.Background(), key, num).Result()
+	if err != nil {
+		return 0, err
+	}
+	return resNum, nil
+}
+
+func DecrNumExpire(key string, num int64, expiration time.Duration) (int64, error) {
+	times, err := DecrBy(key, num)
+	if err != nil {
+		return 0, err
+	}
+	ttl, err := RedisClient.TTL(context.Background(), key).Result()
+	if err != nil {
+		return 0, err
+	}
+	if ttl == -1 {
+		RedisClient.Expire(context.Background(), key, expiration)
+	}
+	return times, nil
+}
-- 
2.22.0