public TrackableItemViewModel(TrackableItem ti)
{
_dataSource = ti;
AddStateCommand = new DelegateCommand(AddState, x => true);
EditStateCommand = new DelegateCommand(EditState, x => _selectedState != null);
RemoveStateCommand = new DelegateCommand(RemoveState, x => _selectedState != null);
}
public T ToClientData <T>() where T : class
{
var t = new ClientDataModel.TrackableItem()
{
Description = Description, Id = Id.ToString(), IsSecured = IsSecured, Name = Name, SupportsGeolocationServices = SupportsGeolocationServices, SupportsUserInformation = SupportsUserInformation, UserId = UserId, States = new List <ClientDataModel.TrackableItemState>()
};
if (States != null)
{
t.States = States.Select(x => x.ToClientData <ClientDataModel.TrackableItemState>()).ToList();
}
return(t as T);
}
public TrackableItem UpdateTrackableItem(string sessionId, TrackableItem clientTrackableItem)
{
if (!ValidateUser(sessionId))
throw new Exception("Not authorized");
ObjectId clietTiId;
if (!ObjectId.TryParse(clientTrackableItem.Id, out clietTiId))
throw new Exception("Invalid Trackable Item ID");
string userId = GetUser(sessionId);
var serverTi =
_trackableItemsCollection.AsQueryable()
.FirstOrDefault(
x =>
x.Id == clietTiId && x.UserId == userId);
if (serverTi == null)
{
throw new Exception("TrackableItem with specified id not found in the database");
}
if (serverTi.States == null ) serverTi.States = new List<ServerDataModel.TrackableItemState>();
clientTrackableItem.States.ToList().ForEach(cst =>
{
//if server entity doesnt contain any client entity - add entity for server.
//however if it is and client's one has an ID set - generate error.
if (serverTi.States.FirstOrDefault(ss => ss.Id.ToString() == cst.Id) == null)
{
if (string.IsNullOrEmpty(cst.Id))
{
ServerDataModel.TrackableItemState sState = new ServerDataModel.TrackableItemState() { Id = ObjectId.GenerateNewId() };
serverTi.States.Add(sState);
cst.Id = sState.Id.ToString();
}
else
{
throw new Exception(string.Format("The state with id {0} wasn't found for trackable item {1}. In case adding new state leave the Id field empty." , cst.Id, clientTrackableItem.Id));
}
}
});
//Applying client data
serverTi.ApplyClientData(clientTrackableItem);
_trackableItemsCollection.Save(serverTi);
//return a result to user
return serverTi.ToClientData<TrackableItem>();
}