public function __construct(PromotionType $type)
 {
     parent::__construct($type);
     $this->entityDTO->isFixed = $this->entity->isFixed();
     $this->entityDTO->isPercent = $this->entity->isPercent();
     $this->entityDTO->isExact = $this->entity->isExact();
 }
 /**
  * @param int $unitPrice
  * @return int
  */
 public function getUnitPrice($unitPrice)
 {
     $returnValue = 0;
     if ($this->type->isFixed()) {
         $returnValue = $unitPrice - $this->value;
     } elseif ($this->type->isPercent()) {
         $returnValue = $unitPrice - $unitPrice * ($this->value / 100);
     } elseif ($this->type->isExact()) {
         $returnValue = $this->value;
     }
     return (int) $returnValue;
 }