public ActionResult AddAlbum(int?id, AlbumAdd newItem)
{
// Validate the input
if (!ModelState.IsValid)
{
return(RedirectToAction("details", "artists", new { id = id }));
}
// Verify that the passed-in identifier is in the new item's
// collection of identifiers
if (!newItem.ArtistIds.Contains(id.GetValueOrDefault()))
{
return(RedirectToAction("details", "artists", new { id = id }));
}
// Process the input
var addedItem = m.AlbumAdd(newItem);
if (addedItem == null)
{
return(RedirectToAction("details", "artists", new { id = id }));
}
else
{
// Attention 15 - Must redirect to the albums controller
return(RedirectToAction("details", "albums", new { id = addedItem.Id }));
}
}
public AlbumBase AlbumAdd(AlbumAdd newItem)
{
// Attention 14 - Manager method to add a new album for an artist
// Validate each of the desired associated artists
var artists = new List <Artist>();
foreach (var artistId in newItem.ArtistIds)
{
var a = ds.Artists.Find(artistId);
if (a != null)
{
artists.Add(a);
}
}
// Validate each of the desired associated tracks
var tracks = new List <Track>();
foreach (var trackId in newItem.TrackIds)
{
var a = ds.Tracks.Find(trackId);
if (a != null)
{
tracks.Add(a);
}
}
// We only really want to continue if the album HAS at least one associated artist
if (artists.Count == 0)
{
return(null);
}
else
{
// Attempt to add the new item
var addedItem = ds.Albums.Add(mapper.Map <Album>(newItem));
// Set the association - artists
foreach (var item in artists)
{
addedItem.Artists.Add(item);
}
// Set the association - tracks
foreach (var item in tracks)
{
addedItem.Tracks.Add(item);
}
// Set the coordinator user name
addedItem.Coordinator = User.Name;
ds.SaveChanges();
return((addedItem == null) ? null : mapper.Map <AlbumBase>(addedItem));
}
}
// Create a new album with artists
public AlbumWithDetail AlbumAdd(AlbumAdd newItem)
{
var o = ds.Albums.Add(Mapper.Map <Album>(newItem));
foreach (var item in newItem.ArtistIds)
{
var a = ds.Artists.Find(item);
o.Artists.Add(a);
}
foreach (var item in newItem.TrackIds)
{
var a = ds.Tracks.Find(item);
o.Tracks.Add(a);
}
ds.SaveChanges();
return((o == null) ? null : Mapper.Map <AlbumWithDetail>(o));
}
public ActionResult Create(AlbumAdd newItem)
{
newItem.Coordinator = HttpContext.User.Identity.Name;
ModelState.Clear();
if (!ModelState.IsValid)
{
return(View(newItem));
}
var addedItem = m.AlbumAdd(newItem);
if (addedItem == null)
{
return(View(newItem));
}
else
{
return(RedirectToAction("details", new { id = addedItem.Id }));
}
}
