public bool EndShift() //завершение смены
{
using (CashboxDataContext db = new CashboxDataContext())
{
try
{
db.DBConnectionCheck();
db.Shifts.Attach(this);
EndDateTime = DateTime.Now;
db.SaveChanges();
CurrentCash = 0;
CashReceived = 0;
CashAdded = 0;
CashWithdrawn = 0;
CashReturned = 0;
IsActive = false;
return(true);
}
catch (Exception e)
{
MessageBox.Show(e.Message);
return(false);
}
}
}
public static Shift ShiftStart(IUser <User> user) //старт смены
{
using (CashboxDataContext db = new CashboxDataContext())
{
try
{
db.DBConnectionCheck();
Shift prevShift = db.Shifts.OrderByDescending(sh => sh.SId).FirstOrDefault();
decimal currCash = 0;
currCash = prevShift != null ? prevShift.CurrentCash : 0;
Shift currShift = new Shift(user, currCash);
db.Shifts.Add(currShift);
db.SaveChanges();
return(currShift);
}
catch (Exception e)
{
MessageBox.Show(e.Message);
return(null);
}
}
}