I use "notify" as the change tracking policy. Is it sufficient to call
onPropertyChanged() on the the owning side of the association, because this
is actually related to a database column? Or do I have to call
onPropertyChanged() on both sides? Here is my example code:
<?php
declare(encoding='UTF-8');
namespace MyCompany\MyBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
use Doctrine\Common\Collections\ArrayCollection;
/**
* @ORM\Entity
* @ORM\ChangeTrackingPolicy( "NOTIFY" )
* @ORM\Table( name = "person" )
*/
class Person extends Entity {
public function __construct() {
parent::__construct();
$this->id = null;
$this->postalAddresses = new ArrayCollection();
}
public function addPostalAddress( PostalAddress $postalAddress = null ) {
if( is_null( $postalAddress ) ) return $this;
if( $this->postalAddresses->contains( $postalAddress ) ) return $this;
$oldPostalAddresses = $this->postalAddresses;
$newPostalAddresses = clone( $oldPostalAddresses );
$newPostalAddresses->add( $postalAddress );
$this->postalAddresses = $newPostalAddresses;
$this->onPropertyChanged( 'postalAddresses', $oldPostalAddresses,
$newPostalAddresses );
$postalAddress->setPerson( $this );
return $this;
}
public function removePostalAddress( PostalAddress $postalAddress = null,
Person $newPerson = null ) {
if( is_null( $postalAddress ) ) return $this;
if( !( $this->postalAddresses->contains( $postalAddress ) ) ) return
$this;
if( $newPerson == $this ) return $this;
$oldPostalAddresses = $this->postalAddresses;
$newPostalAddresses = clone( $oldPostalAddresses );
$newPostalAddresses->removeElement( $postalAddress );
$this->postalAddresses = $newPostalAddresses;
$this->onPropertyChanged( 'postalAddresses', $oldPostalAddresses,
$newPostalAddresses );
$postalAddress->setPerson( $newPerson );
return $this;
}
/**
* @ORM\Id
* @ORM\Column( name = "id", type = "integer" )
* @ORM\GeneratedValue( strategy = "SEQUENCE" )
* @var int
*/
protected $id = null;
/**
* @ORM\OneToMany( targetEntity = "PostalAddress", mappedBy = "person" )
* @var Doctrine\Common\Collections\ArrayCollection
*/
protected $postalAddresses = null;
}
/**
* @ORM\Entity
* @ORM\ChangeTrackingPolicy( "NOTIFY" )
* @ORM\Table( name = "postal_address" )
*/
class PostalAddress extends Entity {
public function __construct( Person $person ) {
parent::__construct();
$this->id = null;
$this->setPerson( $person );
}
public function setPerson( Person $newPerson = null ) {
if( $this->person == $newPerson ) return $this;
$oldPerson = $this->person;
$this->person = $newPerson;
$this->onPropertyChanged( 'person', $oldPerson, $newPerson );
if( !is_null( $oldPerson ) ) $oldPerson->removePostalAddress( $this,
$newPerson );
if( !is_null( $newPerson ) ) $newPerson->addPostalAddress( $this );
return $this;
}
/**
* @ORM\Id
* @ORM\Column( name = "id", type = "integer" )
* @ORM\GeneratedValue( strategy = "SEQUENCE" )
* @var int
*/
protected $id = null;
/**
* @ORM\ManyToOne( targetEntity = "Person", inversedBy =
"postalAddresses" )
* @ORM\JoinColumn( name = "person_id", referencedColumnName = "id",
nullable = false );
* @var Person
*/
protected $person = null;
}
?>
It seems that it works either way but what is the intended (i.e. correct)
way to go? If it is sufficient to do the notification at the owning side,
the getters and setters for the ArrayCollection can be simplified and a
costly clone of the ArrayCollection can be avoided. Instead of my current
code the following snippet would be enough:
public function addPostalAddress( PostalAddress $postalAddress = null ) {
if( is_null( $postalAddress ) ) return $this;
if( $this->postalAddresses->contains( $postalAddress ) ) return $this;
$this->postalAddresses->add( $postalAddress );
$postalAddress->setPerson( $this );
return $this;
}
This seems to work, too, but will it do so in future versions of Doctrine?
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