解决报名支付

backend/shop/admin.py

@@ -373,12 +373,14 @@ class OrderAdmin(ModelAdmin):
             return f"[硬件] {obj.config.name}"
         if obj.course:
             return f"[课程] {obj.course.title}"
+        if obj.activity:
+            return f"[活动] {obj.activity.title}"
         return "未知商品"
     get_item_name.short_description = "购买商品"
 
     fieldsets = (
         ('订单信息', {
-            'fields': ('config', 'course', 'quantity', 'total_price', 'status', 'created_at')
+            'fields': ('config', 'course', 'activity', 'quantity', 'total_price', 'status', 'created_at')
         }),
         ('客户信息', {
             'fields': ('customer_name', 'phone_number', 'shipping_address', 'wechat_user')