public void AddOrUpdateBook(Book book)
{
if (book.Id == default(int))
context.Books.Add(book);
else
context.Entry(book).State = EntityState.Modified;
}
public async Task<IActionResult> Edit(Book book)
{
if (ModelState.IsValid)
{
_context.Update(book);
await _context.SaveChangesAsync();
return RedirectToAction("Index");
}
ViewData["AuthorID"] = new SelectList(_context.Set<Author>(), "AuthorID", "Author", book.AuthorID);
return View(book);
}
public IActionResult Create(Book book)
{
if (ModelState.IsValid)
{
_context.Book.Add(book);
_context.SaveChanges();
return RedirectToAction("Index");
}
ViewData["AuthorID"] = new SelectList(_context.Set<Author>(), "AuthorID", "Author", book.AuthorID);
return View(book);
}
public IActionResult Create(Book book)
{
if (ModelState.IsValid)
{
db.AddOrUpdateBook(book);
db.SaveChanges();
TempData["success"] = $"New book added successfully with Id = {book.Id}";
return RedirectToAction("Index");
}
AddAuthorDropdown(book.AuthorId);
return View(book);
}