public int Save(CD cd)
{
var cdEntity = MapCDViewModelToCDEntity(cd);
if (cd.Tracks != null)
{
cdEntity.Tracks = new List<Data.Entities.Track>();
foreach (var trackModel in cd.Tracks)
{
var trackEntity = new Data.Entities.Track
{
Id = trackModel.Id,
Artist = trackModel.Artist,
CD = cdEntity,
Length = trackModel.Length,
Name = trackModel.Name
};
cdEntity.Tracks.Add(trackEntity);
}
}
return _cdRepository.Save(cdEntity);
}
public ActionResult Delete(int id, CD cd)
{
try
{
_cdModel.Delete(id);
return RedirectToAction("Index");
}
catch
{
return View();
}
}
public ActionResult Create(CD cd)
{
try
{
_cdModel.Save(cd);
return RedirectToAction("Index");
}
catch
{
return View();
}
}
public ActionResult Edit(int id, CD cd)
{
try
{
_cdModel.Save(cd);
return RedirectToAction("Index");
}
catch
{
return View();
}
}
private static Track MapTrackEntitToTrackModel(Data.Entities.Track trackEntity)
{
var cdModel = new CD
{
Artist = trackEntity.CD.Artist,
Genre = trackEntity.CD.Genre,
Id = trackEntity.CD.Id,
Title = trackEntity.CD.Title,
Year = trackEntity.CD.Year
};
var trackModel = new Track
{
Artist = trackEntity.Artist,
Id = trackEntity.Id,
Length = trackEntity.Length,
Name = trackEntity.Name,
CD = cdModel
};
return trackModel;
}
private static Data.Entities.CD MapCDViewModelToCDEntity(CD cd)
{
return new Data.Entities.CD
{
Id = cd.Id,
Artist = cd.Artist,
Genre = cd.Genre,
Title = cd.Title,
Year = cd.Year
};
}
private static CD MapCdEntityToCdViewModel(Data.Entities.CD cdEntity)
{
var cd = new CD
{
Id = cdEntity.Id,
Artist = cdEntity.Artist,
Genre = cdEntity.Genre,
Title = cdEntity.Title,
Year = cdEntity.Year,
Tracks = new List<Track>()
};
foreach (var track in cdEntity.Tracks.Select(trackEntity => new Track
{
Id = trackEntity.Id,
Artist = trackEntity.Artist,
Length = trackEntity.Length,
Name = trackEntity.Name,
CD = cd
}))
{
cd.Tracks.Add(track);
}
return cd;
}