public async Task <ICommandResult <Star> > CreateAsync(Star model)
{
// Validate
if (model == null)
{
throw new ArgumentNullException(nameof(model));
}
// If we have an Id we should perform an update not a create
if (model.Id > 0)
{
throw new ArgumentOutOfRangeException(nameof(model.Id));
}
// ThingId should be optional
if (model.ThingId < 0)
{
throw new ArgumentOutOfRangeException(nameof(model.ThingId));
}
// We already need a userId
if (model.CreatedUserId <= 0)
{
throw new ArgumentOutOfRangeException(nameof(model.CreatedUserId));
}
if (String.IsNullOrWhiteSpace(model.Name))
{
throw new ArgumentNullException(nameof(model.Name));
}
// Invoke StarCreating subscriptions
foreach (var handler in _broker.Pub <Star>(this, "StarCreating"))
{
model = await handler.Invoke(new Message <Star>(model, this));
}
var result = new CommandResult <Star>();
var newStar = await _starStore.CreateAsync(model);
if (newStar != null)
{
// Invoke StarCreated subscriptions
foreach (var handler in _broker.Pub <Star>(this, "StarCreated"))
{
newStar = await handler.Invoke(new Message <Star>(newStar, this));
}
// Return success
return(result.Success(newStar));
}
return(result.Failed(new CommandError("An unknown error occurred whilst attempting to create a follow.")));
}
