public TimeSpend ChangePaymentStatus(TimeSpend timeSpend, PaymentStatus newStatus)
{
if (!ProjectSecurity.CanEditPaymentStatus(timeSpend))
{
throw new SecurityException("Access denied.");
}
if (timeSpend == null)
{
throw new ArgumentNullException("timeSpend");
}
var task = taskDao.GetById(timeSpend.Task.ID);
if (task == null)
{
throw new Exception("Task can't be null.");
}
ProjectSecurity.DemandEdit(timeSpend);
if (timeSpend.PaymentStatus == newStatus)
{
return(timeSpend);
}
timeSpend.PaymentStatus = newStatus;
return(timeSpendDao.Save(timeSpend));
}