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Symfony2 - 自定义验证器和依赖注入

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我试图使用依赖注入自定义验证器，以便能够使用entityManager .

我按照Symfony示例：Dependency Injection，但我总是收到此错误消息：

FatalErrorException：错误：在/home/milos/workspace/merrin3/vendor/symfony/symfony/src/Symfony/Bundle/FrameworkBundle/Validator/ConstraintValidatorFactory.php第68行中找不到类'isdoi'

这是我的课程：

1. The IsDOI class:

<?php
    namespace Merrin\MainBundle\Validator\Constraints;
    use Symfony\Component\Validator\Constraint;

    /**
     * @Annotation
    */
    class IsDOI extends Constraint
    {
    public $message_publisher_DOI = 'The Publisher DOI abbreviation does not correspond to the DOI you filled in !';
    public $message_journal_DOI = 'No journal found with the DOI you filled in !';
    public $journal;
    public $doiAbbreviation;

     public function validatedBy() {
            return "isdoi";
        }

        public function getTargets()
        {
            return self::CLASS_CONSTRAINT;
        }
    }

2. The IsDOIValidator class:

<?php

namespace Merrin\MainBundle\Validator\Constraints;

use Doctrine\ORM\EntityManager;
use Symfony\Component\Validator\Constraint;
use Symfony\Component\Validator\ConstraintValidator;
use Symfony\Component\DependencyInjection\ContainerBuilder;

class IsDOIValidator extends ConstraintValidator
{
    private $entityManager;

    public function __construct(EntityManager $entityManager)
    {
    $this->entityManager = $entityManager;
    }

    public function validate($value, Constraint $constraint)
    {       
        $em_mdpipub = $this->entityManager('mdpipub');
        //Do some tests here...

    }
}

3. Service:

merrin.main.validator.isdoi:
    class:  Merrin\MainBundle\Validator\Constraints\IsDOIValidator
    arguments: 
        entityManager: "@doctrine.orm.entity_manager"

我哪里错了？谢谢您的帮助 .

php symfony dependency-injection customvalidator

2 回答

  • 7

    您有错误的服务文件，当您添加标签和别名时，您可以使用“isdoi”名称

    merrin.main.validator.isdoi:
    class:  Merrin\MainBundle\Validator\Constraints\IsDOIValidator
    arguments: 
        entityManager: "@doctrine.orm.entity_manager"
    tags:
        - { name: validator.constraint_validator, alias: isdoi }
    回复于
  • 3

    你告诉Symfony2你的约束的验证器类是 isdoi （ validateBy method ） . 但是，您的验证器是 IsDOIValidator .

    你必须使用：

    public function validateBy()
{
    return "IsDOIValidator";
}

    但是，如果您的 Constraint 类名称是 IsDOI ，Symfony将自动查找 IsDOIValidator 作为 ConstraintValidator . validateBy 的默认行为是将"Validator"附加到约束名称，并查找具有此名称的类 . 因此，如果您不重载 validateBy ，Symfony2将自动搜索 IsDOIValidator .

    回复于

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