public async Task <IActionResult> Edit(Guid id)
{
var book = await _context.Books.Include(it => it.Authors).Include(it => it.Cover).SingleAsync(it => it.Id.Equals(id));
var authors = book.Authors.Select(it => it.AuthorId);
var authorSelectList = _context.Authors.AsNoTracking().Select(it => new SelectListItem
{
Selected = authors.Contains(it.Id),
Value = it.Id.ToString(),
Text = it.Name
});
var cover = _fileUpload.UrlFor(book.Cover?.Path);
var viewModel = new EditBookViewModel
{
Id = book.Id,
Title = book.Title,
Authors = authors,
AuthorSelectList = authorSelectList,
Cover = cover
};
return(View(viewModel));
}
