simplecomposition

simplecomposition.scala

MyController extends Controller with ParameterMapper with Renderable{
  post("/widgets/")((request, response) => {
    mapRequest[Widget](request)(widget => {
       render(WidgetService.save(widget))
    })
  })
}

object WidgetService extends Validations{

  def save(widget: Widget): Widget = {
    validations(widget){
      val validator = new WidgetValidator(widget)
      validator.add(new UniqueValidator({widget.id}))
      validator.validate
    }
    dao.persist(widget)
  }
}