在我的symfony应用程序中,我需要一个自定义验证约束,该约束应检查电子邮件是否唯一。 此约束应该用作注释。
我遵循symfony cookbook的指南,但我得到例外:
尝试加载类" unique.email.validator"来自全局命名空间。 你忘记了"使用"声明吗
这是我在Unique Email Constraint类中的代码:
<?php
namespace MyApp\AppBundle\Validator\Constraints;
use Symfony\Component\Validator\Constraint;
/**
* Class UniqueEmail
* @package MyApp\AppBundle\Validator\Constraints
* @Annotation
*/
class UniqueEmail extends Constraint
{
public $message = 'The Email already exists.';
public function validatedBy()
{
return 'unique.email.validator';
}
}
这是我独特的EmailValidator的代码:
namespace MyApp\AppBundle\Validator\Constraints;
use Doctrine\ORM\EntityManager;
use Symfony\Component\Validator\Constraint;
use Symfony\Component\Validator\ConstraintValidator;
class UniqueEmailValidator extends ConstraintValidator
{
/**
* @var EntityManager
*/
protected $em;
public function __construct(EntityManager $entityManager)
{
$this->em = $entityManager;
}
public function validate($value, Constraint $constraint)
{
$repository = $this->em->getRepository('AppBundle:Advertiser');
$advertiser = $repository->findOneBy(array(
'email' => $value
));
if ($advertiser) {
$this->context->buildViolation($constraint->message)
->addViolation();
}
}
}
最后但并非最不重要的是我的services.yml:
services:
unique.email.validator:
class: MyApp\AppBundle\Validator\Constraints\UniqueEmailValidator
arguments:
entityManager: "@doctrine.orm.entity_manager"
tags:
- { name: validator.constraint_validator, alias: unqiue.email.validator }
有没有人有任何想法如何解决它?
答案 0 :(得分:6)
在您的services.yml中,别名拼写错误:'unqiue.email.validator'而不是'unique.email.validator'