Php 类IDP\Bundle\Entity\Portfolio不是有效的实体或映射的超类

我是新来的symfony2。我创建了一个名为PortfolioController的基本控制器，并为此控制器创建了一些索引视图。我也创建了一个实体类，但它给出了一个错误

我的控制器是

<?php
namespace IDP\Bundle\Controller;
use Symfony\Bundle\FrameworkBundle\Controller\Controller;
 class PortfolioController extends Controller {

    public function indexAction() {
     $product = $this->getDoctrine()
      ->getRepository('IDPBundle:Portfolio')
      ->find(1);
    return $this->render('IDPBundle:Portfolio:index.html.twig');
   }

} 

---

您的实体缺少所有ORM元数据，比如类本身上的
@ORM\entity
，属性上的其他元数据。请参阅。
您的实体类没有任何ORM元数据。试试这样的

 <?php

namespace IDP\Bundle\Entity;

 use Doctrine\ORM\Mapping as ORM;
 use Symfony\Component\Validator\Constraints as Assert;
 /**
 * IDP\Bundle\Entity\Portfolio
 * @ORM\Table(name="pm_portfolios")
 */
class Portfolio
{
/**
 * @var integer $id
 */
private $id;

/**
 * @var integer $user_id
 */
private $user_id;

/**
 * @var string $portfolio_name
 */
private $portfolio_name;

/**
 * @var text $description
 */
private $description;

/**
 * @var string $permalink
 */
private $permalink;

/**
 * @var string $sharing_code
 */
private $sharing_code;

/**
 * @var boolean $shared
 */
private $shared;

/**
 * @var integer $shared_portfolio_calls
 */
private $shared_portfolio_calls;

/**
 * @var integer $patentgroup_id
 */
private $patentgroup_id;


/**
 * Get id
 *
 * @return integer 
 */
public function getId()
{
    return $this->id;
}

/**
 * Set user_id
 *
 * @param integer $userId
 */
public function setUserId($userId)
{
    $this->user_id = $userId;
}

/**
 * Get user_id
 *
 * @return integer 
 */
public function getUserId()
{
    return $this->user_id;
}

/**
 * Set portfolio_name
 *
 * @param string $portfolioName
 */
public function setPortfolioName($portfolioName)
{
    $this->portfolio_name = $portfolioName;
}

/**
 * Get portfolio_name
 *
 * @return string 
 */
public function getPortfolioName()
{
    return $this->portfolio_name;
}

/**
 * Set description
 *
 * @param text $description
 */
public function setDescription($description)
{
    $this->description = $description;
}

/**
 * Get description
 *
 * @return text 
 */
public function getDescription()
{
    return $this->description;
}

/**
 * Set permalink
 *
 * @param string $permalink
 */
public function setPermalink($permalink)
{
    $this->permalink = $permalink;
}

/**
 * Get permalink
 *
 * @return string 
 */
public function getPermalink()
{
    return $this->permalink;
}

/**
 * Set sharing_code
 *
 * @param string $sharingCode
 */
public function setSharingCode($sharingCode)
{
    $this->sharing_code = $sharingCode;
}

/**
 * Get sharing_code
 *
 * @return string 
 */
public function getSharingCode()
{
    return $this->sharing_code;
}

/**
 * Set shared
 *
 * @param boolean $shared
 */
public function setShared($shared)
{
    $this->shared = $shared;
}

/**
 * Get shared
 *
 * @return boolean 
 */
public function getShared()
{
    return $this->shared;
}

/**
 * Set shared_portfolio_calls
 *
 * @param integer $sharedPortfolioCalls
 */
public function setSharedPortfolioCalls($sharedPortfolioCalls)
{
    $this->shared_portfolio_calls = $sharedPortfolioCalls;
}

/**
 * Get shared_portfolio_calls
 *
 * @return integer 
 */
public function getSharedPortfolioCalls()
{
    return $this->shared_portfolio_calls;
}

/**
 * Set patentgroup_id
 *
 * @param integer $patentgroupId
 */
public function setPatentgroupId($patentgroupId)
{
    $this->patentgroup_id = $patentgroupId;
}

/**
 * Get patentgroup_id
 *
 * @return integer 
 */
public function getPatentgroupId()
{
    return $this->patentgroup_id;
}


 <?php

namespace IDP\Bundle\Entity;

 use Doctrine\ORM\Mapping as ORM;
 use Symfony\Component\Validator\Constraints as Assert;
 /**
 * IDP\Bundle\Entity\Portfolio
 * @ORM\Table(name="pm_portfolios")
 */
class Portfolio
{
/**
 * @var integer $id
 */
private $id;

/**
 * @var integer $user_id
 */
private $user_id;

/**
 * @var string $portfolio_name
 */
private $portfolio_name;

/**
 * @var text $description
 */
private $description;

/**
 * @var string $permalink
 */
private $permalink;

/**
 * @var string $sharing_code
 */
private $sharing_code;

/**
 * @var boolean $shared
 */
private $shared;

/**
 * @var integer $shared_portfolio_calls
 */
private $shared_portfolio_calls;

/**
 * @var integer $patentgroup_id
 */
private $patentgroup_id;


/**
 * Get id
 *
 * @return integer 
 */
public function getId()
{
    return $this->id;
}

/**
 * Set user_id
 *
 * @param integer $userId
 */
public function setUserId($userId)
{
    $this->user_id = $userId;
}

/**
 * Get user_id
 *
 * @return integer 
 */
public function getUserId()
{
    return $this->user_id;
}

/**
 * Set portfolio_name
 *
 * @param string $portfolioName
 */
public function setPortfolioName($portfolioName)
{
    $this->portfolio_name = $portfolioName;
}

/**
 * Get portfolio_name
 *
 * @return string 
 */
public function getPortfolioName()
{
    return $this->portfolio_name;
}

/**
 * Set description
 *
 * @param text $description
 */
public function setDescription($description)
{
    $this->description = $description;
}

/**
 * Get description
 *
 * @return text 
 */
public function getDescription()
{
    return $this->description;
}

/**
 * Set permalink
 *
 * @param string $permalink
 */
public function setPermalink($permalink)
{
    $this->permalink = $permalink;
}

/**
 * Get permalink
 *
 * @return string 
 */
public function getPermalink()
{
    return $this->permalink;
}

/**
 * Set sharing_code
 *
 * @param string $sharingCode
 */
public function setSharingCode($sharingCode)
{
    $this->sharing_code = $sharingCode;
}

/**
 * Get sharing_code
 *
 * @return string 
 */
public function getSharingCode()
{
    return $this->sharing_code;
}

/**
 * Set shared
 *
 * @param boolean $shared
 */
public function setShared($shared)
{
    $this->shared = $shared;
}

/**
 * Get shared
 *
 * @return boolean 
 */
public function getShared()
{
    return $this->shared;
}

/**
 * Set shared_portfolio_calls
 *
 * @param integer $sharedPortfolioCalls
 */
public function setSharedPortfolioCalls($sharedPortfolioCalls)
{
    $this->shared_portfolio_calls = $sharedPortfolioCalls;
}

/**
 * Get shared_portfolio_calls
 *
 * @return integer 
 */
public function getSharedPortfolioCalls()
{
    return $this->shared_portfolio_calls;
}

/**
 * Set patentgroup_id
 *
 * @param integer $patentgroupId
 */
public function setPatentgroupId($patentgroupId)
{
    $this->patentgroup_id = $patentgroupId;
}

/**
 * Get patentgroup_id
 *
 * @return integer 
 */
public function getPatentgroupId()
{
    return $this->patentgroup_id;
}