The method name must start with either findBy or findOneBy. Undefined method Symfony?

Question

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! 

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();   }  } 

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     ));     }      // .. } 

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;   --   --  } 

Where Am I doing wrong ?

Answer 1

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 {     // .. } 

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

And don't forget to regenerate entities:

php app/console doctrine:generate:entities Blogger 

UPDATE

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

Answer 2

In my case adding proper annotation was insufficient.
Deleting Doctrine Cache by php app/console doctrine:cache:clear-metadata also not worked.

I generate my entities from database by commands

php app/console doctrine:mapping:import --force AcmeBlogBundle xml
php app/console doctrine:mapping:convert annotation ./src
php app/console doctrine:generate:entities AcmeBlogBundle

First command generate orm.xml file for each DB Table in my project. After DELETING all orm.xml files Annotations started work properly.