public int UpdateQUantity(int id, string name, int quantity)
{
if (!itemDataAccess.HasThisId(id) || !itemDataAccess.HasThisName(name))
{
return(-1);
}
else
{
if (itemDataAccess.UpdateQuantity(id, quantity) <= 0)
{
return(-2);
}
else
{
DateTime date = DateTime.Today;
double price = itemDataAccess.GetUnitPrice(id);
if (transactionDataAccess.HasTransaction(date))
{
return(transactionDataAccess.UpdateExpense(date, quantity * price));
}
else
{
return(transactionDataAccess.AddExpense(DateTime.Today, quantity * price, 0));
}
}
}
}
