/**
  * @param \Kontuak\Period $period
  * @return \Kontuak\Period
  */
 public function toResource(\Kontuak\Period $period)
 {
     $resource = new \AppBundle\Resources\Form\Resource\PeriodicalMovement\Period();
     $resource->amount = $period->amount();
     $resource->type = $period->type();
     return $period;
 }
 public function mapToDomain()
 {
     $period = null;
     $this->id = Id::parse($this->doctrineId);
     $this->period = Period::factory(self::$typeMapToDomain[$this->periodType], $this->periodAmount);
 }