Exemplo n.º 1
0
        static void GiveOut(int bookIndex, string clientName, Entities.Catalogue library)
        {
            if (bookIndex > library.catalogue.Count || bookIndex < 0)
            {
                throw new ArgumentOutOfRangeException("\n\nI can't give out the book. bookIndex is out of range of catalogue.");
            }

            Entities.Book book = library.catalogue[bookIndex];

            if (book.Available == false)
            {
                throw new Exceptions.UnAvailableBookException("\n\nI can't give out the book. This book is given out!!!");
            }

            Entities.LibraryCard card = library.clientCards.Find(item => item.Reader.Name == clientName);

            if (card == null)
            {
                throw new Exceptions.InexistentClientException("\n\nI can't give out the book. There is no such Client! ");
            }
            else
            {
                book.Available = false;
                card.clientBookList.Add(book, DateTime.Today);
            }
        }
Exemplo n.º 2
0
        static void GetBack(int bookIndex, string clientName, Entities.Catalogue library)
        {
            if (bookIndex > library.catalogue.Count || bookIndex < 0)
            {
                throw new ArgumentOutOfRangeException("\n\nI can't take the book. bookIndex is out of range of catalogue.");
            }

            Entities.Book book = library.catalogue[bookIndex];

            if (book.Available == true)
            {
                throw new Exceptions.UnAvailableBookException("\n\nI can't take the book. This book is available already!!!");
            }

            Entities.LibraryCard card = library.clientCards.Find(item => item.Reader.Name == clientName);

            if (card == null)
            {
                throw new Exceptions.InexistentClientException("\n\nI can't take the book. There is no such Client! ");
            }
            else
            {
                book.Available = true;
                Boolean rezult = card.clientBookList.Remove(book);
                if (rezult == false)
                {
                    throw new Exceptions.NoCardRecordException("\n\nI can't take the book. Client did not take the book!!!");
                }
            }
        }