修复修改订单报错

Edu.Module.Course/OrderModule.cs

@@ -2201,10 +2201,16 @@ namespace Edu.Module.Course
                     { nameof(RB_Order_ViewModel.UpOrderId),demodel.UpOrderId},
                     { nameof(RB_Order_ViewModel.CustomerId),demodel.CustomerId},
                     { nameof(RB_Order_ViewModel.CourseConsultantId),demodel.CourseConsultantId},
-                    { nameof(RB_Order_ViewModel.TotalClassHours),demodel.TotalClassHours},
+
                     { nameof(RB_Order_ViewModel.TextbookFee),demodel.TextbookFee},
                     { nameof(RB_Order_ViewModel.CoursewareFee),demodel.CoursewareFee},
                 };
+                if (demodel.TotalClassHours == 0)//兼容之前的数据
+                {
+                    demodel.TotalClassHours = (glist?.FirstOrDefault()?.TotalHours ?? 0);
+                }
+                keyValues.Add(nameof(RB_Order_ViewModel.TotalClassHours), demodel.TotalClassHours);
+
                 flag = orderRepository.Update(keyValues, new WhereHelper(nameof(RB_Order_ViewModel.OrderId), demodel.OrderId));//更新订单信息
 
                 #region 更新Order_Guest中的有效课时和课时单价  2024-09-06 add by:W
@@ -2212,10 +2218,18 @@ namespace Edu.Module.Course
                 {
                     foreach (var item in glist)
                     {
-                        item.TotalHours = demodel.TotalClassHours;
+                        item.TotalHours = demodel.TotalClassHours == 0 ? item.TotalHours : demodel.TotalClassHours;
+                        if (item.TotalHours == 0)
+                        {
+                            item.ClassUnitPrice = 0;
+                            item.ValidClassHours = 0;
+                        }
+                        else
+                        {
                             item.ClassUnitPrice = Math.Round(((demodel.PreferPrice - demodel.TextbookFee - demodel.CoursewareFee) / demodel.TotalClassHours), 6);//课时单价  （应收总金额-教材费-课件费）/总课时
                             decimal validClassHours = Math.Round(((demodel.Income + demodel.PlatformTax - demodel.Refund - demodel.TextbookFee - demodel.CoursewareFee) / item.ClassUnitPrice), 2);
                             item.ValidClassHours = validClassHours < item.CompleteHours ? item.CompleteHours : validClassHours;//有效课时  =    (实收+手续费-退款 - 课件费 - 教材费)/课时单价  ；   如果  有效课时 < 已完成课时 ，有效课时  =   已完成课时
+                        }
                         Dictionary<string, object> keyValuesOG = new Dictionary<string, object>()
                         {
                             { nameof(RB_Order_Guest_ViewModel.TotalHours),item.TotalHours},