Symfony2 自定义验证器注释不起作用

Question

我在src/VNN/PressboxBundle/Component/Validator/CurrentPasswordValidator.php 中有一个自定义验证器：

<?php
namespace VNN\PressboxBundle\Component\Validator\Constraints;

use Symfony\Component\Validator\ConstraintValidator,
    Symfony\Component\Validator\Constraint,
    Symfony\Component\Security\Core\Encoder\EncoderFactoryInterface,
    Symfony\Component\Security\Core\SecurityContextInterface,
    JMS\DiExtraBundle\Annotation\Validator,
    JMS\DiExtraBundle\Annotation\InjectParams,
    JMS\DiExtraBundle\Annotation\Inject;

/**
 * @Validator("user.validator.current_password")
 */
class CurrentPasswordValidator extends ConstraintValidator
{
    // ...
}

然后我在src/VNN/PressboxBundle/Component/Validator/Contraints/CurrentPassword.php：

<?php
namespace VNN\PressboxBundle\Component\Validator\Constraints;

use Symfony\Component\Validator\Constraint;

/**
 * @Annotation
 */
class CurrentPassword extends Constraint
{
    public $message = "Your current password is not valid";

    /** 
     * @return string
     */
    public function validatedBy()
    {   
        return 'user.validator.current_password';
    }   
}

由于某种原因，当我尝试添加使用此验证器的注释时，我收到错误消息。这是我的实体/注释：

<?php

namespace VNN\PressboxBundle\Entity;

use Symfony\Component\Security\Core\User\UserInterface;
use Doctrine\ORM\Mapping as ORM;
use Doctrine\ORM\Mapping\JoinTable as JoinTable;
use Doctrine\ORM\Mapping\JoinColumn as JoinColumn;
use Symfony\Component\Validator\Constraints as Assert;
use Symfony\Component\Validator\ExecutionContext;
use Symfony\Component\Validator\Mapping\ClassMetadata;
use Symfony\Component\Validator\Constraints\NotBlank;
use Symfony\Component\Validator\Constraints\MaxLength;
use Symfony\Component\Validator\Constraints\Email;
use VNN\PressboxBundle\Component\Validator\Constraints\CurrentPassword;
use Symfony\Bridge\Doctrine\Validator\Constraints\UniqueEntity;

/**
 * VNN\PressboxBundle\Entity\User
 *
 * @ORM\Table(name="user")
 * @ORM\Entity
 */
class User implements UserInterface, \Serializable
{

    /**
     * @var string $password
     * @Assert\NotBlank()
     * @CurrentPassword()
     *
     * @ORM\Column(name="password", type="string", length=255)
     */
    private $password;
}

我得到的错误是：

AnnotationException: [语义错误] 注释 “@VNN\PressboxBundle\Component\Validator\Constraints\CurrentPassword” 在属性 VNN\PressboxBundle\Entity\User::$password 中不存在， 或无法自动加载。

我做错了什么？

Answer 1

检查VNN\PressboxBundle\VNNPressboxBundle() 是否在AppKernel.php 中的内核中正确注册。

更新：如果已正确注册，并且 src/ 已注册为自动加载器的后备（假设 VNN/ 在 src/ 下），您可能需要尝试加载手动为自己服务并在失败时检查堆栈跟踪：

$validator = $container->get('user.validator.current_password');
// Pretending this is a unit test:
// $this->assertInstanceOf('VNN\PressboxBundle\Component\Validator\Constraints\CurrentPasswordValidator', $validator);

另外，请确保您已清除缓存（如果不在dev 环境中测试）。

---

旁注（但与您的问题无关） - 如果您开始添加更多验证器，使用此语法会更有用：

<?php

namespace VNN\PressboxBundle\Entity;

use VNN\PressboxBundle\Component\Validator\Constraints as VNN;

class User implements UserInterface, \Serializable
{
    /**
     * @VNN\CurrentPassword
     */
    private $password;
}