public void AddFormular(Book b, ReadersTicket rt)
{
if (b.FreeExemplarsCount == 0)
{
throw new ReturningException("У этой книги больше нет свободных экземпляров.");
}
if (rt.Quote == 0)
{
throw new ReturningException("У этого читателя закончилась квота, он не может брать больше книг.");
}
Formular frm = new Formular(b, rt, DateTime.Now, rt.GiveDays);
linkedFC.AddFormular(frm);
b.AddFormular(frm);
rt.AddFormular(frm);
OnChangingBookList?.Invoke(null, null);
OnChangingTicket?.Invoke(null, null);
}
private void buildFormularsFromData()
{
foreach (Tuple <int, int, DateTime> tup in linkedFC.LoadDataFromFile(filenameFormulars))
{
Book b = linkedBC.GetBookByID(tup.Item1);
if (b == null)
{
throw new WrongIDException("Loading formulars: no such book in catalog", tup.Item1);
}
ReadersTicket rt = linkedTC.GetTicketByID(tup.Item2);
if (rt == null)
{
throw new WrongIDException("Loading formulars: no such ticket in catalog", tup.Item2);
}
Formular frm = new Formular(b, rt, tup.Item3);
b.AddFormular(frm);
rt.AddFormular(frm);
linkedFC.AddFormular(frm);
}
}
