Doctrine EntityManager 未注入自定义验证器

Question

我创建了一个自定义验证器来检查电子邮件是否不存在于 2 个数据库表中。

namespace AgriHealth\AhpBundle\Validator\Constraints;

use Symfony\Component\Validator\Constraint;

/**
 * @Annotation
 */
class UniqueEmailAll extends Constraint
{
    public $message = 'This email is already in use';

    public function validatedBy()
    {
        return get_class($this).'Validator';
    }
} 

namespace AgriHealth\AhpBundle\Validator\Constraints;

use Symfony\Component\Validator\Constraint;
use Symfony\Component\Validator\ConstraintValidator;

class UniqueEmailAllValidator extends ConstraintValidator
{
    private $entityManager;

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


    public function validate($value, Constraint $constraint)
    {
        $find1 = $this->entityManager->getRepository( 'AgriHealthAhpBundle:Vet')->findOneByEmail($value);
        $find2 = $this->entityManager->getRepository( 'AgriHealthAhpBundle:Farmer')->findOneByEmail($value);

        if ($find1 || $find2) {
            // If you're using the new 2.5 validation API (you probably are!)
            $this->context->buildViolation($constraint->message)
                ->addViolation();
        }
    }
}

我正在尝试像这样将 Doctrine 实体管理器注入验证器：

services:
    validator.unique.UniqueEmailAll:
        class:  AgriHealth\AhpBundle\Validator\Constraints\UniqueEmailAllValidator
        arguments:
            entityManager: "@doctrine.orm.entity_manager"
        tags:
            - { name: validator.constraint_validator, alias: UniqueEmailAllValidator }

但这似乎不起作用:

可捕获的致命错误：传递给 AgriHealth\AhpBundle\Validator\Constraints\UniqueEmailAllValidator::__construct() 的参数 1 必须是给定的 AgriHealth\AhpBundle\Validator\Constraints\EntityManager、none 的实例，在 [=22 中调用=].php 在第 71 行，在 /home/jochen/projects/ahp/trunk/src/AgriHealth/AhpBundle/Validator/Constraints/UniqueEmailAllValidator.php 第 18

行中定义

我错过了什么？在 config.yml 中，我不确定应该调用什么服务。 Cookbook 说前缀 validator.unique 但我不明白 unique 指的是什么？

Answer 1

首先，您应该在 UniqueEmailAllValidator 中声明使用 EntityManager

namespace AgriHealth\AhpBundle\Validator\Constraints;

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

class UniqueEmailAllValidator extends ConstraintValidator
{
 ...
}

其次在 UniqueEmailAll 中像这样定义 validatedBy 函数

class UniqueEmailAll extends Constraint
{
    public $message = 'This email is already in use';

    public function validatedBy()
    {
        return 'unique.email.all.validator';
    }
}

并在 services.yml 文件中执行此操作

services:
    validator.unique.UniqueEmailAll:
        class:  AgriHealth\AhpBundle\Validator\Constraints\UniqueEmailAllValidator
        arguments:
            entityManager: "@doctrine.orm.entity_manager"
        tags:
            - { name: validator.constraint_validator, alias: unique.email.all.validator }

这将解决您的问题。我不知道导致此问题的第二部分有什么问题。可能跟大写字母有关

Doctrine EntityManager 未注入自定义验证器

Doctrine EntityManager not injected into Custom Validator

symfony

doctrine-orm

validation

entitymanager

symfony-2.5