SymBlog：未定义方法。方法名称必须以findBy或findOneBy开头 [英] SymBlog: Undefined method. The method name must start with either findBy or findOneBy

问题描述

我目前正在与Symfony2的第4部分SymBlog项目
我收到此错误消息：

I am currently working with Symfony2's Part 4 OF The SymBlog project I am getting this ERROR message:

Undefined method 'getLatestPosts'. The method name must start with either findBy 
or findOneBy!500 Internal Server Error - BadMethodCallException

这是我的PostRepository类：

This is my PostRepository Class:

    <?php

namespace BLog\BlogBundle\Entity; use Doctrine\ORM\EntityRepository;

class PostRepository extends EntityRepository {

    public function getLatestPosts($limit = null) {
        $qp = $this->createQueryBuilder('p')
                ->select('p')
                ->addOrderBy('p.created', 'DESC');

        if (false === is_null($limit)) {
            $qp->setMaxResults($limit);
        }


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

}

这是Controller的页面：

This is the Controller's page Action method:

<?php

namespace Blog\BlogBundle\Controller;
use Symfony\Bundle\FrameworkBundle\Controller\Controller;

class DefaultController extends Controller {

    public function indexAction() {
        $em = $this->getDoctrine()
                ->getEntityManager();

        $posts = $em->getRepository('BlogBundle:Post')
                ->getLatestPosts();

        return $this->render('BlogBundle:Default:home.html.twig', > >array(
                    'posts' => $posts
        ));
    }
...
}

我的../../../Entity/邮政编码：

This is a sample of my ../../../Entity/Post code:

<?php

namespace Blog\BlogBundle\Entity;

use Doctrine\ORM\Mapping as ORM;
use Doctrine\Common\Collections\ArrayCollection;

/**
 * @ORM\Entity(repositoryClass="Blog\BlogBundle\Entity\PostRepository")
 * @ORM\Table(name="post")
 * @ORM\HasLifecycleCallbacks
 */

class Post {


....
...
..
/**
     * @ORM\Column(type="text")
     */
    protected $post;
...
...

帖子 ScoRpion

这里的问题是什么？

推荐答案

不需要在这里使用存储库。如果你通过引用实体直接获取数据，那么你应该使用findBy或findOneBy由你的数据库字段名发布。
请尝试执行以下操作：

No need to use repository here. If you are fetching data directly by refering entity then you should use findBy or findOneBy posted by your database field name. Please Try to do following way:

namespace Blog\BlogBundle\Controller;
use Symfony\Bundle\FrameworkBundle\Controller\Controller;

class DefaultController extends Controller {

    public function indexAction() {

        $posts = this->forward('BlogBundle:Post:getLatestPosts', array(), array());

        return $this->render('BlogBundle:Default:home.html.twig', > >array(
                    'posts' => $posts
        ));
    }
...
}

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