public void Update(Book entity)
{
if (BooksData.Books.ContainsKey(entity.Id))
BooksData.Books[entity.Id] = entity;
}
public void UpdateBook(Book book)
{
_repository.Update(book);
}
public void Add(Book entity)
{
entity.Id = ID;
BooksData.Books.Add(ID++, entity);
}
public void AddBook(Book book)
{
_repository.Add(book);
}