n

backend/shop/views.py

@@ -709,9 +709,17 @@ class OrderViewSet(viewsets.ModelViewSet):
         order.save()
 
         try:
+            # 动态生成描述
+            if order.config:
+                description = f"购买 {order.config.name} x {order.quantity}"
+            elif order.course:
+                description = f"报名 {order.course.title}"
+            else:
+                description = f"支付订单 {order.id}"
+
             # 统一下单 (JSAPI)
             code, message = wxpay.pay(
-                description=f"购买 {order.config.name} x {order.quantity}",
+                description=description,
                 out_trade_no=out_trade_no,
                 amount={'total': amount_in_cents, 'currency': 'CNY'},
                 payer={'openid': user.openid}, # 小程序支付必须传 openid