From 2741dcb3e9ecdc7e8d39f8375dd37580a4fa2249 Mon Sep 17 00:00:00 2001
From: Nick Zeng <Nick.Zeng@wpic.co>
Date: Wed, 10 Dec 2025 12:56:37 +0800
Subject: [PATCH] update store model

---
 backend/app/Model/Store.php | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/backend/app/Model/Store.php b/backend/app/Model/Store.php
index 52201f7..6c34bf8 100644
--- a/backend/app/Model/Store.php
+++ b/backend/app/Model/Store.php
@@ -74,4 +74,18 @@ class Store extends Model
         'created_at' => 'datetime',
         'updated_at' => 'datetime',
     ];
+
+    /**
+     * 获取标准时区字符串
+     * 将 UTC 偏移值（如 +8）转换为标准时区格式（如 '+08:00'）
+     *
+     * @return string 标准时区字符串，可用于 Carbon 和 DateTime
+     */
+    public function getTimezoneString(): string
+    {
+        $offset = $this->timezone ?? 0;
+        $sign = $offset >= 0 ? '+' : '-';
+        $absOffset = abs($offset);
+        return sprintf('%s%02d:00', $sign, $absOffset);
+    }
 }