Question

我的控制器中有一个方法，用于检查是否已经过了一定的时间，如果是，则更新模型属性并将其保存到数据库中。然而，该模型没有更新，我不确定为什么，如果有人可以提供任何建议？谢谢！目前正在从数据库中删除订单，但不会更改eventDetails.TicketsRemaining。

 [HttpPost]
 [ValidateAntiForgeryToken]
 public ActionResult Charge(SummaryVm summaryVm)
 {

 if (checkDateTime(summaryVm.orderDate))
  {

  //do something

 }else{

  // get the event being booked from db based on the ID
  Event eventDetails = _eventRepository.GetByID(summaryVm.eventID);

  // get the order being processed from db based on the ID
  Order thisOrder = db.Orders.Find(summaryVm.orderID);

 //update the number of tickets remaining for event returning the number of tickets requested to the available tickets
  eventDetails.TicketsRemaining += summaryVm.ticketQuantity;

 //remove order from db as payment was not received and order was not processed
 db.Orders.Remove(thisOrder);

 //save these db changes
 db.SaveChanges();

 return RedirectToAction("TimeOut", new { id = summaryVm.eventID });

  }
}

Answer 1

_eventRepository.SaveChanges()

当您混合设计模式时，您的代码很奇怪......

如果您创建了_eventRepository

，则

db不应该存在

您已经创建了两个上下文..并且您没有将保存更改提交给您更改数据的那个。

ALTERNATIVELY

你可以通过

来解决

  Event eventDetails = db.Events.GetByID(summaryVm.eventID);

实体框架模型未正确更新

1 个答案: