public ActionResult RenderActivity(ActivityViewModel model) { if (!Services.Authorizer.Authorize(StandardPermissions.SiteOwner, T("Not authorized to edit workflows"))) { return(new HttpUnauthorizedResult()); } var activity = _activitiesManager.GetActivityByName(model.Name); if (activity == null) { return(HttpNotFound()); } dynamic shape = New.Activity(activity); if (model.State != null) { var state = FormParametersHelper.ToDynamic(FormParametersHelper.ToString(model.State)); shape.State(state); } else { shape.State(FormParametersHelper.FromJsonString("{}")); } shape.Metadata.Alternates.Add("Activity__" + activity.Name); return(new ShapeResult(this, shape)); }