public IActionResult EditBook(int?id) //It is a short-cut way to write Nullable<int> "?"
{
ViewBag.deleteBookId = id; // need the Id from the database, so I can add the option in the EditBook -View to delete the book
if (id == null)
{
ViewBag.ErrorMessage = $"Book with the respective ID:{id} cannot be found.";
return(View("NotFound"));
}
//Get the book from the database
BooksDisplayed book = _bookStore.GetSpecificBook(id);
//Check for the book
if (book == null)
{
ViewBag.ErrorMessage = $"Book with the respective ID:{id} cannot be found.";
return(View("NotFound"));
}
EditBookViewModels model = new EditBookViewModels()
{
Id = book.BookId,
BooksInStore = book.BooksInStore,
BookGenre = book.BookGenre,
Price = book.Price,
StockOfBooks = book.StockOfBooks
};
return(View(model));
}
public IActionResult EditBook(EditBookViewModels model)
{
//Get the book from the database
BooksDisplayed book = _bookStore.GetSpecificBook(model.Id);
//Check for the book
if (book == null)
{
ViewBag.ErrorMessage = $"Book with the respective ID:{model.Id} cannot be found.";
return(View("NotFound"));
}
if (ModelState.IsValid)
{
book.BooksInStore = model.BooksInStore;
book.BookGenre = model.BookGenre;
book.StockOfBooks = model.StockOfBooks;
book.Price = model.Price;
_bookStore.UpdateBook(book);
}
return(View(model));
}
