Symfony save date for every change status - symfony

Question

how i can to do this: I have OrderWork entity this for order and have relation manyToMany with Status entity. All work good, but i want have date for every saved and updated order.
* Order
*
* #ORM\Table(name="order_work")
* #ORM\Entity(repositoryClass="AppBundle\Repository\OrderWorkRepository")
*/
class OrderWork
{
/**
* #var int
*
* #ORM\Column(name="id", type="integer")
* #ORM\Id
* #ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* #ORM\ManyToOne(targetEntity="Client", cascade={"persist"})
* #ORM\JoinColumn(name="client_id", referencedColumnName="id")
*/
private $client;
/**
* #var string
*
* #ORM\Column(name="orderNumber", type="string", length=255)
*/
private $orderNumber;
/**
* #var string
*
* #ORM\Column(name="orderCity", type="string", length=255)
*/
private $orderCity;
/**
* #var date
*
* #ORM\Column(name="date", type="string", length=255)
*/
private $date;
/**
* #var \DateTime
*
* #ORM\Column(name="orderDate", type="string", length=255, options={"default": NULL})
*/
private $orderDate;
/**
* #var \DateTime
*
* #ORM\Column(name="returnDate", type="string", length=255, nullable=true)
*/
private $returnDate;
/**
* #var string
*
* #ORM\Column(name="device", type="string", length=255)
*/
private $device;
/**
* #ORM\ManyToOne(targetEntity="SurrogatePhone", cascade={"persist"})
* #ORM\JoinColumn(name="surrogate_id", referencedColumnName="id")
*/
private $surrogatePhone;
/**
* #var int
*
* #ORM\Column(name="orderType", type="integer")
*/
public $orderType;
/**
* #ORM\ManyToMany(targetEntity="Status")
* #ORM\JoinTable(name="order_status",
* joinColumns={#ORM\JoinColumn(name="order_id", referencedColumnName="id", unique=false)},
* inverseJoinColumns={#ORM\JoinColumn(name="status_id", referencedColumnName="id", unique=false)}
* )
*/
private $status;
How better resolve this solution?

Answer 1

Define date in your constructor (for creating):
class OrderWork
{
//...
public function __construct()
{
$this->date = new DateTime();
}
}
And update date field when updating:
$orderWork->setDate(new DateTime());
$em->flush();