方法名称必须以 findBy 或 findOneBy 开头.未定义的方法 Symfony? [英] The method name must start with either findBy or findOneBy. Undefined method Symfony?

问题描述

我正在研究 Symfony2 的第 4 部分，在更新控制器和辅助类代码时，我收到以下错误消息

I am working through part4 of Symfony2, and while updating the controller and helper class code i got the following error message

Undefined method 'getLatestBlogs'. The method name must start with either
findBy or findOneBy!

在我将一些代码放入控制器之前，我按照教程的教导转移到了我的助手类，这导致了上述错误消息.

before i had put some code in controller that i shifted to my helper class as taught by tutorial, which result in the above error message.

<?php
// src/Blogger/BlogBundle/Repository/BlogRepository.php
namespace Blogger\BlogBundle\Repository;
use Doctrine\ORM\EntityRepository;

/**
 * BlogRepository
 * This class was generated by the Doctrine ORM. Add your own custom
 * repository methods below.
*/
class BlogRepository extends EntityRepository
{
 public function getLatestBlogs($limit = null)
 {
    $qb = $this->createQueryBuilder('b')
               ->select('b')
               ->addOrderBy('b.created', 'DESC');

    if (false === is_null($limit))
        $qb->setMaxResults($limit);

    return $qb->getQuery()
              ->getResult();
  } 
}

这是我的控制器文件索引操作代码:-

And here is my controller file index Action Code:-

// src/Blogger/BlogBundle/Controller/PageController.php
class PageController extends Controller
{
  public function indexAction()
  {
    $em = $this->getDoctrine()
               ->getEntityManager();

    $blogs = $em->getRepository('BloggerBlogBundle:Blog')
                ->getLatestBlogs();

    return $this->render('BloggerBlogBundle:Page:index.html.twig', array(
        'blogs' => $blogs
    ));
    }

    // ..
}

我从/Entity/Blog.php 文件中附上几行.请根据您的回答查看它们是否正确.

I am attaching few lines from /Entity/Blog.php file. please see if they are correct as per your answer.

<?php
// src/Blogger/BlogBundle/Entity/Blog.php

namespace Blogger\BlogBundle\Entity;
use Doctrine\ORM\Mapping as ORM;

/**
 * @ORM\Entity(repositoryClass="Blogger\BlogBundle\Repository\BlogRepository")
 * @ORM\Table(name="blog")
 * @ORM\HasLifecycleCallbacks()
 * @ORM\Entity
 */

class Blog
 {
  /**
   * @ORM\Id
   * @ORM\Column(type="integer")
   * @ORM\GeneratedValue(strategy="AUTO")
   * @ORM\HasLifecycleCallbacks()
  */
  protected $id;
  --
  --
 }

我哪里做错了?

推荐答案

确保你已经修改了你的实体类:

Make sure that you have modified your entity class:

// src/Blogger/BlogBundle/Entity/Blog.php
/**
 * @ORM\Entity(repositoryClass="Blogger\BlogBundle\Repository\BlogRepository")
 * @ORM\Table(name="blog")
 * @ORM\HasLifecycleCallbacks()
 */
class Blog
{
    // ..
}

注释 @ORM\Entity(repositoryClass="Blogger\BlogBu​​ndle\Repository\BlogRepository") 是必需的.

the annotation @ORM\Entity(repositoryClass="Blogger\BlogBundle\Repository\BlogRepository") is required.

并且不要忘记重新生成实体:

And don't forget to regenerate entities:

php app/console doctrine:generate:entities Blogger

更新

移除注解@ORM\Entity.它覆盖了正确的注释 @ORM\Entity(repositoryClass="Blogger\BlogBu​​ndle\Repository\BlogRepository")

UPDATE

Remove annotation @ORM\Entity. It overrides correct annotation @ORM\Entity(repositoryClass="Blogger\BlogBundle\Repository\BlogRepository")

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