public string AddBook(Book book)
{
if (book != null)
{
using (BookDBContext contextObj = new BookDBContext())
{
contextObj.books.Add(book);
contextObj.SaveChanges();
return "Book record added successfully";
}
}
else
{
return "Invalid book record";
}
}
public string UpdateBook(Book book)
{
if (book != null)
{
using (BookDBContext contextObj = new BookDBContext())
{
int bookId = Convert.ToInt32(book.Id);
Book _book = contextObj.books.Where(b => b.Id == bookId).FirstOrDefault();
_book.Title = book.Title;
_book.Author = book.Author;
_book.Publisher = book.Publisher;
_book.Isbn = book.Isbn;
contextObj.SaveChanges();
return "Book record updated successfully";
}
}
else
{
return "Invalid book record";
}
}