public bool Delete(User user, string isbn)
{
if (HasGuid(user))
{
BooksTable booksTable = new BooksTable();
booksTable.Delete(booksTable.ListByISBN(isbn));
}
return(false);
}
public BookModel ListByIsbn(User user, string isbn)
{
if (HasGuid(user))
{
BooksTable booksTable = new BooksTable();
return(booksTable.ListByISBN(isbn));
}
return(null);
}