public int AddBook(Book book)
{
using (var bookContext = new LibraryEntities5())
{
bookContext.Books.Add(book);
bookContext.SaveChanges();
}
var query = from b in libDB.Books
where b.ISDN == "41242"
select b.Id;
return(query.FirstOrDefault());
}
public bool Lendbook(int bookId, int userId)
{
using (var bookContext = new LibraryEntities5())
{
var query = from u in bookContext.Users
where u.Id == userId
select u;
User selectedOne = query.First();
selectedOne.BorrowedBooks = bookId;
bookContext.SaveChanges();
}
return(true);
}
public bool EditBook(int bookId, string newName)
{
using (var bookContext = new LibraryEntities5())
{
var query = from b in bookContext.Books
where b.Id == bookId
select b;
Book selectedOne = query.First();
selectedOne.Title = newName;
bookContext.SaveChanges();
}
return(true);
}
