public bool Remove(Book book)
{
if (book == null)
return false;
return _books.Remove(book);
}
public bool Save(Book book)
{
if (book == null)
return false;
book.Id = _books.Any() ? _books.Max(x => x.Id) + 1 : 1;
_books.Add(book);
return true;
}
public bool Update(Book book)
{
if (book == null)
return false;
var _book = GetBook(book.Id);
if (_book == null)
return false;
_book.Title = book.Title;
_book.Authors = book.Authors;
_book.Pages = book.Pages;
_book.Publisher = book.Publisher;
_book.PublishingYear = book.PublishingYear;
_book.Isbn = book.Isbn;
_book.BookImage = book.BookImage;
return true;
}
public BookInfo(Book book)
: this(book.Id, book.Pages, book.PublishingYear, book.Title, book.Publisher, book.Isbn, book.Authors)
{
}
