问题描述
如何将提交的表单字段与实际的数据库数据进行比较?
如果我使用我的存储库获取实体的副本,它实际上只是获取提交的表单的副本。我想知道表单中提交的数据是否从表单中发生了变化。
namespace App\Validator;
use Symfony\Component\Validator\Constraint;
use Symfony\Component\Validator\ConstraintValidator;
use Doctrine\ORM\EntityManagerInterface;
use \App\Entity\Logistics\CarrierSendle;
use Symfony\Component\Security\Core\Security;
class CarrierDescUniqueValidator extends ConstraintValidator {
/**
* @var Security
*/
private $security;
/**
* @var Em
*/
private $em;
public function __construct(EntityManagerInterface $em,Security $security) {
$this->em = $em;
$this->security = $security;
}
public function validate($object,Constraint $constraint) {
/* @var $constraint \App\Validator\CarrierDescUnique */
if (!$constraint instanceof CarrierDescUnique) {
throw new UnexpectedTypeException($constraint,CarrierDescUnique::class);
}
if (null === $object->getDescription() || '' === $object->getDescription()) {
return;
}
$repoCurrent = $this->em->getRepository(CarrierSendle::class)
->GetCurrentName($this->security->getUser(),$object->getSendleId());
if ($object->getDescription() === $repoCurrent->getDescription()) {
return;
}
var_dump($object); var_dump($repoCurrent); die;
...
}
}
解决方法
UnitOfWork() 是答案,在这里找到Source
这将查询数据库,而不使用注入验证器的缓存版本。
$original = $this->em->getUnitOfWork()->getOriginalEntityData($object);