From 1a1f88cbdf261dace802e1131b9661a87cf49c69 Mon Sep 17 00:00:00 2001
From: panliang <1163816051@qq.com>
Date: Sun, 28 Jun 2026 22:31:48 +0800
Subject: [PATCH] OfflineOrderItem.coupon_discount_amount

---
 app/Models/UserCoupon.php | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/app/Models/UserCoupon.php b/app/Models/UserCoupon.php
index 9ada496f..56c6c67a 100644
--- a/app/Models/UserCoupon.php
+++ b/app/Models/UserCoupon.php
@@ -176,13 +176,15 @@ class UserCoupon extends Model
     public function getDiscountAmount(int $total)
     {
         $couponDiscount = 0;
-        // 优惠券: 直接抵扣
-        if ($this->coupon_type == Coupon::TYPE_AMOUNT) {
-            $couponDiscount = $this->coupon_amount;
-        }
-        // 优惠券: 折扣
-        else if ($this->coupon_type == Coupon::TYPE_DISCOUNT) {
-            $couponDiscount = (int) bcmul($total, bcdiv(100 - $this->coupon_amount, 100, 2));
+        if ($this->coupon_amount > 0) {
+            // 优惠券: 直接抵扣
+            if ($this->coupon_type == Coupon::TYPE_AMOUNT) {
+                $couponDiscount = $this->coupon_amount;
+            }
+            // 优惠券: 折扣
+            else if ($this->coupon_type == Coupon::TYPE_DISCOUNT) {
+                $couponDiscount = (int) bcmul($total, bcdiv(100 - $this->coupon_amount, 100, 2));
+            }
         }
 
         return $couponDiscount;