Symfony 2异常:在Controller中找不到类

Question

好的，我正在尝试在我的自定义操作"next“中创建类"Engineering_Detail”的一个新对象，问题是，即使我使用的是"Use ....\Entity\Engineering_Detail"，它也会在我执行$detail = new Engineering_Detail();的行中抛出这个错误

错误：'Mine\Bundle\EngMgmtBundle\Entity\Engineering_Detail‘类C:\xampp\htdocs\EngMgmt\src\Mine\Bundle\EngMgmtBundle\Controller\EngineeringController.php第403行中找不到

第403行是$detail = new Engineering_Detail();

以下是重要的控制器位：

<?php

namespace Mine\Bundle\EngMgmtBundle\Controller;

use Symfony\Component\HttpFoundation\Request;
use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use Sensio\Bundle\FrameworkExtraBundle\Configuration\Method;
use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;
use Sensio\Bundle\FrameworkExtraBundle\Configuration\Template;
use Mine\Bundle\EngMgmtBundle\Entity\Engineering;
use Mine\Bundle\EngMgmtBundle\Form\EngineeringType;
use Mine\Bundle\EngMgmtBundle\Entity\Engineering_Detail;
/**
 * Engineering controller.
 *
 * @Route("/engineering")
 */
class EngineeringController extends Controller
{
/**
     * Updates a Engineering entity.
     *
     * @Route("/{id}/next/", name="engineering_next")
     * @Method("POST")
     * @Template("MineEngMgmtBundle:Engineering:update.html.twig")
     */
   public function nextAction(Request $request, $id){
        $em = $this->getDoctrine()->getManager();
        $entity = $em->getRepository('MineEngMgmtBundle:Engineering')->find($id);

        $current_form = $this->getForm($entity->getStatus()->getInternalOrder()); 
        $current_form->handleRequest($request);

        $detail = new Engineering_Detail();

        if ($current_form->isValid()) {

            $data = $current_form->getData();

            switch ($entity->getStatus()->getInternalOrder()){

                case 1:

                 if (($data["sitesurvey"]) == 'n'){
                     $status = $em->getRepository('MineEngMgmtBundle:Status')->findBy(array('internalOrder' => 8));
                     $next_form = $this->getForm($entity->getStatus()->getInternalOrder());
                }else{
                     $status = $em->getRepository('MineEngMgmtBundle:Status')->find(2);
                     $next_form = $this->getForm($entity->getStatus()->getInternalOrder());
                }    

                    break;

                default:
                     $status = $em->getRepository('MineEngMgmtBundle:Status')->findBy(array('internalOrder' => $entity->getStatus()->getInternalOrder()+1));
                     $next_form = $this->getForm($entity->getStatus()->getInternalOrder());
                    break;
            }

                     $detail->setEngineering($entity);
                     $detail->setFromStatus($entity->getStatus());
                     $detail->setToStatus($status);
                     $detail->setUpdatedDate(new \DateTime());
                     $detail->setUser($this->get('security.context')->getToken()->getUser());
                     $detail->setComments($data["comments"]);
                     $entity->setStatus($status);
                     $em->flush();
        }
            return array(
                        'entity' => $entity,
                        'form'   => $next_form->createView()
             );
    }

我已经检查过this并进行了验证，但一切似乎都还好。该实体是使用SF2控制台内的工具生成的。我做错了什么？

注意:我已经删除了缓存。

编辑：

与所有其他实体一起尝试，使用相同的命名空间，只更改实体的名称，并声明对象，这似乎是一个问题--它只是与名称中有_的实体有关。

Answer 1

通过删除实体名称中的_并更改其所有出现情况来修正

Answer 2

您正在混合PSR名称空间和类命名。之所以找不到它，是因为您的实体应该被称为EngineeringDetail，才能被自动加载器正确地找到。