filterTransform

filterTransform.scala

val objTransformer =
      (__ \ "_embedded" \ "contract").json.copyFrom(
        (__ \ "contract").readNullable[JsArray].map(_.getOrElse(JsArray()))
      ) and
      (__ \ "_embedded" \ "comment").json.copyFrom(
        (__ \ "comment").readNullable[Comment].filter(reviewOpt => isApproved(reviewOpt))
      )
    (__ \ "title").readNullable[String].map(_.fold(JsObject(Nil))(s => Json.obj("title" -> s)))
    
    
  def isApproved(commentOpt : Option[Comment]) = {
    (for {
      comment <- commentOpt
      status <- comment.status
    } yield {
      status==Status.approved
    }).getOrElse(false)
  }

mais ça ne marche pas avec le orElse?