/// <summary>
/// 用于监测Context中的Entity是否存在，如果存在，将其Detach，防止出现问题。
/// </summary>
/// <param name="entity"></param>
/// <returns></returns>
private Boolean RemoveHoldingEntityInContext(PtaEgTruck entity)
{
var objContext = ((IObjectContextAdapter)_GateContext).ObjectContext;
var objSet = objContext.CreateObjectSet <PtaEgTruck>();
var entityKey = objContext.CreateEntityKey(objSet.EntitySet.Name, entity);
Object foundEntity;
var exists = objContext.TryGetObjectByKey(entityKey, out foundEntity);
if (exists)
{
objContext.Detach(foundEntity);
}
return(exists);
}
/// <summary>
/// 保存一条PTA\EG车辆信息
/// </summary>
/// <param name="goods"></param>
/// <returns></returns>
public IHttpActionResult SavePtaEgTruck(PtaEgTruck ptaEgTruck)
{
try
{
Console.WriteLine("SavePtaEgTruck：" + DateTime.Now.ToString());
string voucherId = string.IsNullOrEmpty(ptaEgTruck.VoucherID) ? "" : ptaEgTruck.VoucherID;
var _PtaEgTruck = _GateContext.PtaEgTrucks.Find(voucherId);
string result = string.Empty;
if (_PtaEgTruck != null)
{
ptaEgTruck.Stamp = DateTime.Now;
//
RemoveHoldingEntityInContext(ptaEgTruck);
//
_GateContext.Entry(ptaEgTruck).State = EntityState.Modified;
}
else
{
if (string.IsNullOrEmpty(ptaEgTruck.Status))
{
ptaEgTruck.Status = "";
}
string vouIdNew = GetPtaEgTruckVoucherIDFlow();
ptaEgTruck.VoucherID = vouIdNew;
ptaEgTruck.Stamp = DateTime.Now;
_GateContext.PtaEgTrucks.Add(ptaEgTruck);
}
_GateContext.SaveChanges();
return(Ok(ptaEgTruck));
}
catch (Exception e)
{
Loger.Error(e);
Console.WriteLine(e);
return(BadRequest(e.Message + e.StackTrace));
}
}
