public async Task <IActionResult> Edit(int id, [Bind("id,name")] Genre genre)
{
if (id != genre.id)
{
return(NotFound());
}
if (ModelState.IsValid)
{
try
{
_context.Update(genre);
await _context.SaveChangesAsync();
}
catch (DbUpdateConcurrencyException)
{
if (!GenreExists(genre.id))
{
return(NotFound());
}
else
{
throw;
}
}
return(RedirectToAction(nameof(Index)));
}
return(View(genre));
}
public async Task <IActionResult> Edit(int id, [Bind("id,name,genreId,authors")] Book book)
{
if (id != book.id)
{
return(NotFound());
}
if (ModelState.IsValid)
{
try
{
_context.Update(book);
this._context.Entry(book).Collection(book => book.authorBookList).Load( );
book.authorBookList.Clear( );
foreach (int author in book.authors)
{
book.authorBookList.Add(
new AuthorBook( )
{
authorId = author
}
);
}
await _context.SaveChangesAsync();
}
catch (DbUpdateConcurrencyException)
{
if (!BookExists(book.id))
{
return(NotFound());
}
else
{
throw;
}
}
return(RedirectToAction(nameof(Index)));
}
ViewData["genreId"] = new SelectList(_context.genres, "id", "name", book.genreId);
return(View(book));
}
public async Task <IActionResult> Edit(int id, [Bind("id,firstName,lastName,country")] Author author)
{
if (id != author.id)
{
return(NotFound());
}
if (ModelState.IsValid)
{
//proveravam da li je menjano ime ili country
bool isOld = this._context.authors.Where(
dauthor => dauthor.id == author.id && dauthor.firstName == author.firstName && dauthor.lastName == author.lastName
).Any();
if (isOld || !this.DoesExist(author.firstName, author.lastName))
{
//try catch blok zbog utrkivanja
try
{
_context.Update(author);
await _context.SaveChangesAsync();
}
catch (DbUpdateConcurrencyException)
{
if (!AuthorExists(author.id))
{
return(NotFound());
}
else
{
throw;
}
}
return(RedirectToAction(nameof(Index)));
}
else
{
ModelState.AddModelError("", "Author already exists");
}
}
return(View(author));
}