我有一个实体，它可以有另一个与父级相同类型的实体（自引用？）。
所以我有一个叫Sweden的容器，然后是另一个叫Stockholm的Container，Stockholm的$parent属性是Sweden（这两个是同一种实体）。
我有一个验证约束，可以确保没有两个实体可以具有相同的名称，但是当我为一个实体选择父级时会出现问题，因为验证的工作方式似乎是它不仅会继续检查实体 Stockholm 的名称，但还会检查我为父级选择的整个实体，显然 Stockholm 的名称已经在数据库中（否则我无法为父级选择它）存在验证错误，似乎一个catch22问题...
一些代码来说明......有什么想法吗？
实体
namespace BizTV\ContainerManagementBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
use Symfony\Component\Validator\Constraints as Assert;
use BizTV\ContainerManagementBundle\Validator\Constraints as BizTVAssert;
use BizTV\UserBundle\Entity\User as user;
use BizTV\ContainerManagementBundle\Entity\Container as Container;
/**
* BizTV\ContainerManagementBundle\Entity\Container
* @BizTVAssert\ContainerExists
* @ORM\Table(name="container")
* @ORM\Entity
*/
class Container
{
/**
* @var integer $id
* @ORM\Id
* @ORM\Column(type="integer")
* @ORM\GeneratedValue(strategy="AUTO")
*/
protected $id;
/**
* @var string $name
* @Assert\NotBlank(message = "Du måste ange ett namn")
* @ORM\Column(name="name", type="string", length=255, nullable=true)
*/
private $name;
/**
* @var object BizTV\BackendBundle\Entity\company
*
* @ORM\ManyToOne(targetEntity="BizTV\BackendBundle\Entity\company")
* @ORM\JoinColumn(name="company", referencedColumnName="id", nullable=false)
*/
protected $company;
/**
* @var object BizTV\ContainerManagementBundle\Entity\ContainerType
*
* @ORM\ManyToOne(targetEntity="BizTV\ContainerManagementBundle\Entity\ContainerType")
* @ORM\JoinColumn(name="container_type", referencedColumnName="id", nullable=false)
*/
protected $containerType;
/**
* @var object BizTV\ContainerManagementBundle\Entity\ContainerSize
*
* @ORM\ManyToOne(targetEntity="BizTV\ContainerManagementBundle\Entity\ContainerSize")
* @ORM\JoinColumn(name="container_size", referencedColumnName="id", nullable=false)
*/
protected $containerSize;
/**
* @ORM\OneToMany(targetEntity="Container", mappedBy="parent")
*/
private $children;
/**
* @ORM\OneToMany(targetEntity="BizTV\ContentManagementBundle\Entity\Content", mappedBy="container")
* @ORM\OrderBy({"sortOrder" = "ASC"})
* above code does nothing, thought to use that instead of the current jQuery tinySort but aparently not...
*/
private $content;
/**
* @var object BizTV\ContainerManagementBundle\Entity\Container
*
* @ORM\ManyToOne(targetEntity="Container", inversedBy="children")
* @ORM\JoinColumn(name="parent", referencedColumnName="id", nullable=true)
*/
protected $parent;
/**
* @var object BizTV\LayoutManagementBundle\Entity\Layout
*
* @ORM\ManyToOne(targetEntity="BizTV\LayoutManagementBundle\Entity\Layout")
* @ORM\JoinColumn(name="screen_layout", referencedColumnName="id", nullable=true)
*/
protected $screen_layout;
/**
* @ORM\Column(type="boolean", nullable=true)
*
* This only applies to the monitor containerType, others will always have false here.
* The purpose of this bool is the option of never rendering this monitor with a layout (handy for ex. BrfTV servers with lower resolution)
*/
protected $prohibitLayout;
/**
* @ORM\ManyToMany(targetEntity="BizTV\UserBundle\Entity\User", mappedBy="access")
*/
private $users;
public function __construct() {
$this->users = new \Doctrine\Common\Collections\ArrayCollection();
$this->children = new \Doctrine\Common\Collections\ArrayCollection();
$this->content = new \Doctrine\Common\Collections\ArrayCollection();
}
/**
* Get id
*
* @return integer
*/
public function getId()
{
return $this->id;
}
/**
* Set name
*
* @param string $name
*/
public function setName($name)
{
$this->name = $name;
}
/**
* Get name
*
* @return string
*/
public function getName()
{
return $this->name;
}
/**
* Set company
*
* @param BizTV\BackendBundle\Entity\company $company
*/
public function setCompany(\BizTV\BackendBundle\Entity\company $company)
{
$this->company = $company;
}
/**
* Get company
*
* @return BizTV\BackendBundle\Entity\company
*/
public function getCompany()
{
return $this->company;
}
/**
* Set containerType
*
* @param BizTV\ContainerManagementBundle\Entity\ContainerType $containerType
*/
public function setContainerType(\BizTV\ContainerManagementBundle\Entity\ContainerType $containerType)
{
$this->containerType = $containerType;
}
/**
* Get containerType
*
* @return BizTV\ContainerManagementBundle\Entity\ContainerType
*/
public function getContainerType()
{
return $this->containerType;
}
/**
* Set parent
*
* @param BizTV\ContainerManagementBundle\Entity\Container $parent
*/
public function setParent(\BizTV\ContainerManagementBundle\Entity\Container $parent = NULL)
{
$this->parent = $parent;
}
/**
* Get parent
*
* @return BizTV\ContainerManagementBundle\Entity\Container
*/
public function getParent()
{
return $this->parent;
}
/**
* Set screen_layout
*
* @param BizTV\LayoutManagementBundle\Entity\Layout $screenLayout
*/
public function setScreenLayout(\BizTV\LayoutManagementBundle\Entity\Layout $screenLayout = NULL)
{
$this->screen_layout = $screenLayout;
}
/**
* Get screen_layout
*
* @return BizTV\LayoutManagementBundle\Entity\Layout
*/
public function getScreenLayout()
{
return $this->screen_layout;
}
public function getSelectLabel()
{
if (isset($this->parent)) {
return $this->name . ' (' . $this->parent->getName() . ')';
}
else {
return $this->name;
}
}
/**
* Add users
*
* @param BizTV\UserBundle\Entity\User $users
*/
public function addUser(\BizTV\UserBundle\Entity\User $users)
{
$this->users[] = $users;
}
/**
* Get users
*
* @return Doctrine\Common\Collections\Collection
*/
public function getUsers()
{
return $this->users;
}
/**
* Add children
*
* @param BizTV\ContainerManagementBundle\Entity\Container $children
*/
public function addContainer(\BizTV\ContainerManagementBundle\Entity\Container $children)
{
$this->children[] = $children;
}
/**
* Get children
*
* @return Doctrine\Common\Collections\Collection
*/
public function getChildren()
{
return $this->children;
}
/**
* Add content
*
* @param BizTV\ContentManagementBundle\Entity\Content $content
*/
public function addContent(\BizTV\ContentManagementBundle\Entity\Content $content)
{
$this->content[] = $content;
}
/**
* Get content
*
* @return Doctrine\Common\Collections\Collection
*/
public function getContent()
{
return $this->content;
}
/**
* Set containerSize
*
* @param BizTV\ContainerManagementBundle\Entity\ContainerSize $containerSize
*/
public function setContainerSize(\BizTV\ContainerManagementBundle\Entity\ContainerSize $containerSize)
{
$this->containerSize = $containerSize;
}
/**
* Get containerSize
*
* @return BizTV\ContainerManagementBundle\Entity\ContainerSize
*/
public function getContainerSize()
{
return $this->containerSize;
}
/**
* Set prohibitLayout
*
* @param boolean $prohibitLayout
*/
public function setProhibitLayout($prohibitLayout)
{
$this->prohibitLayout = $prohibitLayout;
}
/**
* Get prohibitLayout
*
* @return boolean
*/
public function getProhibitLayout()
{
return $this->prohibitLayout;
}
}
形式
namespace BizTV\ContainerManagementBundle\Form;
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilder;
use Doctrine\ORM\EntityRepository;
class ContainerBuildingType extends AbstractType
{
function __construct(\BizTV\BackendBundle\Entity\company $company, \BizTV\ContainerManagementBundle\Entity\ContainerType $parentType) {
$this->parentType = $parentType;
$this->company = $company;
}
public function buildForm(FormBuilder $builder, array $options)
{
$builder->add('name', 'text', array('label' => 'Namn på fastighet '));
$parentType = $this->parentType;
$company = $this->company;
$builder->add('parent', 'entity', array(
'label' => 'Välj ett geografiskt område för fastigheten ',
'class' => 'BizTVContainerManagementBundle:Container','property'=>'name',
'query_builder' => function(EntityRepository $er) use ($parentType, $company) {
return $er->createQueryBuilder('u')
->where('u.containerType = :type', 'u.company = :company')
->setParameters( array('type' => $parentType, 'company' => $company) )
->orderBy('u.name', 'ASC');
},
));
}
public function getName()
{
return 'biztv_containermanagementbundle_containerbuildingtype';
}
}
约束
use Symfony\Component\Validator\Constraint;
/**
* @Annotation
*/
class ContainerExists extends Constraint
{
public $message = 'Namnet är upptaget, vänligen välj ett annat.';
public function validatedBy()
{
return 'containerExists';
}
public function getTargets()
{
return self::CLASS_CONSTRAINT;
}
}
验证器
use Symfony\Component\Validator\Constraint;
use Symfony\Component\Validator\ConstraintValidator;
use Symfony\Component\DependencyInjection\ContainerInterface as Container;
use Doctrine\ORM\EntityManager as EntityManager;
class ContainerExistsValidator extends ConstraintValidator
{
private $container;
private $em;
public function __construct(Container $container, EntityManager $em) {
$this->container = $container;
$this->em = $em;
}
public function isValid($object, Constraint $constraint)
{
$em = $this->em;
$container = $this->container;
$company = $this->container->get('security.context')->getToken()->getUser()->getCompany();
$parent = $object->getParent();
//Fetch entities with same name in the same container
$repository = $em->getRepository('BizTVContainerManagementBundle:Container');
$query = $repository->createQueryBuilder('c')
->where('c.company = :company and c.parent = :parent')
->setParameters(array('company' => $company, 'parent' => $parent))
->orderBy('c.name', 'ASC')
->getQuery();
$containers = $query->getResult();
foreach ($containers as $g) {
echo "testing ".$g->getName()." against ".$object->getName()."<br/>";
if ( $g->getName() == $object->getName() ) {
$this->setMessage('Namnet '.$object->getName().' är upptaget, vänligen välj ett annat');
return false;
}
}
return true;
}
}