Symfony2拒绝我的模型类中的自定义findBy函数

Question

我按照在Doctrine模型类中设置自定义findOneByJoinedToCategory($ id)函数的示例进行操作,如此处的文档中所述:

http://symfony.com/doc/current/book/doctrine.html

在我的例子中,我有一个名为TestVendorCategory的模型类,它包含一堆属性和这个函数:

public function findOneByNameJoinedToVendorCategoryMappings($vendorCategoryName)
    {
        $query = $this->getEntityManager()
        ->createQuery('
                SELECT vc, vcm FROM TestCoreBundle:VendorCategory vc
                JOIN vcm.vendorCategoryMapping vcm
                WHERE vc.name = :name'
        )->setParameter('name', $vendorCategoryName);

        try
        {
            return $query->getSingleResult();
        }
        catch (\Doctrine\ORM\NoResultException $e)
        {
            return null;
        }
    }

在我的控制器中,我称之为:

$vendorCategoryMapping = $this->em->getRepository("TestCoreBundle:VendorCategory")->findOneByNameJoinedToVendorCategoryMappings($vendorCategoryName);

当我进入浏览器并使用此调用执行此操作时,我收到以下错误消息:

实体'Test\CoreBundle\Entity\VendorCategory'没有字段'nameJoinedToVendorCategoryMappings'.因此,您不能在实体的存储库中调用'findOneByNameJoinedToVendorCategoryMappings'

看起来Symfony 2.1希望findOneBy ...()方法只反映现有字段的名称,没有自定义"JoinedTo ..."种类的方法.我错过了什么吗？文档显示了一个这样的例子,据说它可以工作.我正在使用注释,但这种方法没有.谢谢!

Answer 1

您必须将findOneByNameJoinedToVendorCategoryMappings函数放在VendorCategoryRepository类中:

<?php
namespace Test\CoreBundle\Entity;

use Doctrine\ORM\EntityRepository;
use Doctrine\ORM\NoResultException;

class VendorCategoryRepository extends EntityRepository
{
    public function findOneByNameJoinedToVendorCategoryMappings($vendorCategoryName)
    {
        $query = $this->getEntityManager()
            ->createQuery('
            SELECT vc, vcm FROM TestCoreBundle:VendorCategory vc
            JOIN vcm.vendorCategoryMapping vcm
            WHERE vc.name = :name'
        )->setParameter('name', $vendorCategoryName);

        try
        {
            return $query->getSingleResult();
        }
        catch (NoResultException $e)
        {
            return null;
        }
    }
}

并在实体中链接此存储库类:

/**
 * @ORM\Entity(repositoryClass="Test\CoreBundle\Entity\VendorCategoryRepository")
 */
class VendorCategory