public async Task <IActionResult> Edit(string id, Book book)
{
if (int.Parse(id) != book.BookId)
{
return(NotFound());
}
bool isAdmin = await _cs.IsItAdminAsync(User.Identity.Name);
if (!isAdmin)
{
return(Unauthorized());
}
if (ModelState.IsValid)
{
try
{
await _bc.UpdateAsync(book);
await _bc.CommitAsync();
}
catch (DbUpdateConcurrencyException)
{
if (!BookExists(id))
{
return(NotFound());
}
else
{
throw;
}
}
return(RedirectToAction(nameof(Index)));
}
return(View(book));
}