Symfony2没有拿起自定义验证器类的用户实体

Question

我有一个自定义的密码验证器，有人给我的答案是another question。验证程序是这样的：

<?php 
namespace Symfony\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 
{ 
    // ... 
} 

在那里我试图用这个验证是我User实体，它看起来像这样的地方：

<?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 Symfony\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 
{ 
    public static function loadValidatorMetadata(ClassMetadata $metadata) 
    { 
     $metadata->addPropertyConstraint('current_password', new CurrentPassword()); 
    } 
} 

（我省略了一些代码，当然，为了清楚）

，我的验证类是不被认可，我遇到的问题是：

Fatal error: Class 'Symfony\Component\Validator\Constraints\CurrentPassword' not found in /home/jason/pressbox/src/VNN/PressboxBundle/Entity/User.php on line 438

为什么会发生这种情况？

Answer 1

你必须自己写约束。它不包含Symfony2。