public IHttpActionResult PutArtist(int id, Artist artist)
{
if (!ModelState.IsValid)
{
return(BadRequest(ModelState));
}
if (id != artist.ArtistId)
{
return(BadRequest());
}
_db.Entry(artist).State = EntityState.Modified;
try
{
_db.SaveChanges();
}
catch (DbUpdateConcurrencyException)
{
if (!ArtistExists(id))
{
return(NotFound());
}
throw;
}
return(StatusCode(HttpStatusCode.NoContent));
}
public async Task <IActionResult> PutArtist([FromRoute] int id, [FromBody] Artist artist)
{
if (!ModelState.IsValid)
{
return(BadRequest(ModelState));
}
if (id != artist.ArtistId)
{
return(BadRequest());
}
_context.Entry(artist).State = EntityState.Modified;
try
{
await _context.SaveChangesAsync();
}
catch (DbUpdateConcurrencyException)
{
if (!ArtistExists(id))
{
return(NotFound());
}
else
{
throw;
}
}
return(NoContent());
}
public IHttpActionResult PutGenre(int id, Genre genre)
{
if (!ModelState.IsValid)
{
return(BadRequest(ModelState));
}
if (id != genre.GenreId)
{
return(BadRequest());
}
_db.Entry(genre).State = EntityState.Modified;
try
{
_db.SaveChanges();
}
catch (DbUpdateConcurrencyException)
{
if (!GenreExists(id))
{
return(NotFound());
}
throw;
}
return(StatusCode(HttpStatusCode.NoContent));
}
public ActionResult Edit([Bind(Include = "ArtistID,Name")] Artist artist)
{
if (ModelState.IsValid)
{
db.Entry(artist).State = EntityState.Modified;
db.SaveChanges();
return(RedirectToAction("Index"));
}
return(View(artist));
}
public ActionResult Edit([Bind(Include = "OrderId,OrderDate,Username,FirstName,LastName,Address,City,State,PostalCode,Country,Phone,Email,Total")] Order order)
{
if (ModelState.IsValid)
{
db.Entry(order).State = EntityState.Modified;
db.SaveChanges();
return(RedirectToAction("Index"));
}
return(View(order));
}
public ActionResult Edit([Bind(Include = "UserId,UserName,Password")] User user)
{
if (ModelState.IsValid)
{
db.Entry(user).State = EntityState.Modified;
db.SaveChanges();
return(RedirectToAction("Index"));
}
return(View(user));
}
public ActionResult Edit(Album album)
{
if (ModelState.IsValid)
{
db.Entry(album).State = EntityState.Modified;
db.SaveChanges();
return(RedirectToAction("Index"));
}
return(View(album));
}
public ActionResult Edit([Bind(Include = "GenreId,Name,Description")] Genre genre)
{
if (ModelState.IsValid)
{
db.Entry(genre).State = EntityState.Modified;
db.SaveChanges();
return(RedirectToAction("Index"));
}
return(View(genre));
}
public ActionResult Edit([Bind(Include = "StudentId,StuNo,Name,Gender,height,weight")] Student student)
{
if (ModelState.IsValid)
{
db.Entry(student).State = EntityState.Modified;
db.SaveChanges();
return(RedirectToAction("Index"));
}
return(View(student));
}
public ActionResult Edit([Bind(Include = "AlbumId,GenreId,AritstId,Title,Price,AlbumArtUrl")] Album album)
{
if (ModelState.IsValid)
{
db.Entry(album).State = EntityState.Modified;
db.SaveChanges();
return(RedirectToAction("Index"));
}
ViewBag.GenreId = new SelectList(db.Genres, "GenreId", "Name", album.GenreId);
return(View(album));
}
public ActionResult Edit([Bind(Include = "MusicId,Name,Description,Price,ArtistId,CategoryId")] Music music)
{
if (ModelState.IsValid)
{
db.Entry(music).State = EntityState.Modified;
db.SaveChanges();
return(RedirectToAction("Index"));
}
ViewBag.ArtistId = new SelectList(db.Artists, "ArtistId", "Name", music.ArtistId);
ViewBag.CategoryId = new SelectList(db.Categorys, "CategoryId", "Name", music.CategoryId);
return(View(music));
}
public ActionResult Edit(Album album)
{
if (ModelState.IsValid)
{
db.Entry(album).State = EntityState.Modified;
db.SaveChanges();
return(RedirectToAction("Index"));
}
ViewBag.GenreId = new SelectList(db.Genres, "GenreId", "Name", album.GenreId);
ViewBag.ArtistId = new SelectList(db.Artists, "ArtistId", "Name", album.ArtistId);
return(View(album));
}
public ActionResult Buy(int id)
{
var userName = User.Identity.Name;
if (userName == null || userName == "")
{
userName = "******";
}
var album = db.Albums.Find(id);
var cart = db.Carts.SingleOrDefault(c => c.UserName == userName);
if (cart == null)
{
cart = new Cart {
UserName = userName,
CartItems = new List <OrderDetail>()
};
db.Carts.Add(cart);
}
else
{
cart.CartItems = db.OrderDetails.Include(od => od.Album).Where(od => od.CartId == cart.CartId).ToList();
}
if (album != null)
{
var cartItem = cart.CartItems.Find(item => (item.AlbumId == album.AlbumId));
if (cartItem == null)
{
cartItem = new OrderDetail {
AlbumId = album.AlbumId,
Album = album,
Quantity = 1
};
cart.CartItems.Add(cartItem);
db.OrderDetails.Add(cartItem);
}
else
{
cartItem.Quantity++;
db.Entry(cartItem).State = EntityState.Modified;
}
}
db.SaveChanges();
return(PartialView("Cart", cart.CartItems));
}
public ActionResult Edit([Bind(Include = "OrderId,OrderDate,Username,FirstName,LastName,Address,City,State,PostalCode,Country,Phone,Email,Total")] Order order)
{
try {
if (ModelState.IsValid)
{
db.Entry(order).State = EntityState.Modified;
db.SaveChanges();
return(RedirectToAction("Index"));
}
}
catch
{
ModelState.AddModelError("", "Unable to save changes. Try again, and if the problem persists, see your system administrator.");
}
return(View(order));
}
public ActionResult Edit([Bind(Include = "ArtistId,Name")] Artist artist)
{
try
{
if (ModelState.IsValid)
{
db.Entry(artist).State = EntityState.Modified;
db.SaveChanges();
return(RedirectToAction("Index"));
}
}
catch (DataException)
{
ModelState.AddModelError("", "Operation failed. Please contact your system administrator if the problem persists.");
}
return(View(artist));
}
public ActionResult Edit([Bind(Include = "OrderId,OrderDate,Username,FirstName,LastName,Address,City,State,PostalCode,Country,Phone,Email,Total")] Order order)
{
try
{
if (ModelState.IsValid)
{
db.Entry(order).State = EntityState.Modified;
db.SaveChanges();
return(RedirectToAction("Index"));
}
}
catch (DataException)
{
ModelState.AddModelError("", "Operation failed. Please contact your system administrator if the problem persists.");
}
return(View(order));
}
public ActionResult Edit([Bind(Include = "AlbumId,GenreId,ArtistId,Title,Price,AlbumArtUrl")] Album album)
{
try {
if (ModelState.IsValid)
{
db.Entry(album).State = EntityState.Modified;
db.SaveChanges();
return(RedirectToAction("Index"));
}
}
catch
{
ModelState.AddModelError("", "Unable to save changes. Try again, and if the problem persists, see your system administrator.");
}
ViewBag.ArtistId = new SelectList(db.Artists, "ArtistId", "Name", album.ArtistId);
ViewBag.GenreId = new SelectList(db.Genres, "GenreId", "Name", album.GenreId);
return(View(album));
}
public ActionResult Edit([Bind(Include = "GenreId,Name,Description")] Genre genre)
{
try
{
if (ModelState.IsValid)
{
db.Entry(genre).State = EntityState.Modified;
db.SaveChanges();
return(RedirectToAction("Index"));
}
}
catch
{
ModelState.AddModelError("", "Unable to save changes. Try again, and if the problem persists, see your system administrator.");
}
return(View(genre));
}
public ActionResult Edit(Album album)
{
//happy path:当记录状态/模型状态为：有效时
//sad path：当模型状态：无效时执行当操作和采用路径
if (ModelState.IsValid)
{
//告诉数据上下文，对象在DB已经存在，采用修改模式
db.Entry(album).State = EntityState.Modified;
album.Genre = db.Genres.Where(x => x.GenreId == album.GenreId).FirstOrDefault();
album.Artist = db.Artists.Where(x => x.ArtistId == album.ArtistId).FirstOrDefault();
//在数据上下文找那个通过SaveChange方法生成SQL update 命令完成对应记录的更新操作
db.SaveChanges();
return(RedirectToAction("Index"));
}
ViewBag.ArtistId = new SelectList(db.Artists, "ArtistId", "Name", album.ArtistId);
ViewBag.GenreId = new SelectList(db.Genres, "GenreId", "Name", album.GenreId);
return(View(album));
}
public ActionResult Edit([Bind(Include = "AlbumId,GenreId,ArtistId,Title,Price,AlbumArtUrl")] Album album)
{
try
{
if (ModelState.IsValid)
{
db.Entry(album).State = EntityState.Modified;
db.SaveChanges();
return(RedirectToAction("Index"));
}
ViewBag.ArtistId = new SelectList(db.Artists, "ArtistId", "Name", album.ArtistId);
ViewBag.GenreId = new SelectList(db.Genres, "GenreId", "Name", album.GenreId);
}
catch (DataException)
{
ModelState.AddModelError("", "Operation failed. Please contact your system administrator if the problem persists.");
}
return(View(album));
}
// PUT api/<controller>/5
public HttpResponseMessage Put(int id, [FromBody] Album value)
{
MusicStoreDB.Entry(value).State = EntityState.Modified;
return(ToJson(MusicStoreDB.SaveChanges()));
}
