1
我有一個文件/src/AppBundle/Entity/Questionnaire.php帶有3個實體類，我試圖在Symfony上實現與Doctrine 2的單表繼承2.7。 問卷是一個父抽象類，並有2個類FirstQuestions和SecondsQuestions延伸問卷。我選擇了這個模型，因爲我需要用2個步驟在表格中寫入數據。此文件的代碼如下：在Symfony 2中創建子實體類的對象時出錯
namespace AppBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
/**
* Questionnaire
*
* @ORM\Entity
* @ORM\Table(name="questionnaire")
* @ORM\InheritanceType("SINGLE_TABLE")
* @ORM\DiscriminatorColumn(name="discr", type="string")
* @ORM\DiscriminatorMap({"firstquestions" = "FirstQuestions", "secondquestions" = "SecondQuestions"})
*/
abstract class Questionnaire {
/**
* @var integer
*
* @ORM\Column(name="id", type="integer")
* @ORM\Id
* @ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* Get id
*
* @return integer
*/
public function getId()
{
return $this->id;
}
}
/**
* FirstQuestions
*/
class FirstQuestions extends Questionnaire {
/**
* @var string
*
* @ORM\Column(name="firstName", type="string", length=64)
*/
private $firstName;
/**
* @var string
*
* @ORM\Column(name="lastName", type="string", length=64)
*/
private $lastName;
/**
* @var string
*
* @ORM\Column(name="email", type="string", length=32)
*/
private $email;
/**
* @var \DateTime
*
* @ORM\Column(name="birthday", type="date")
*/
private $birthday;
/**
* @var integer
*
* @ORM\Column(name="shoeSize", type="integer")
*/
private $shoeSize;
/**
* Set firstName
*
* @param string $firstName
*
* @return Questionnaire
*/
public function setFirstName($firstName)
{
$this->firstName = $firstName;
return $this;
}
/**
* Get firstName
*
* @return string
*/
public function getFirstName()
{
return $this->firstName;
}
/**
* Set lastName
*
* @param string $lastName
*
* @return Questionnaire
*/
public function setLastName($lastName)
{
$this->lastName = $lastName;
return $this;
}
/**
* Get lastName
*
* @return string
*/
public function getLastName()
{
return $this->lastName;
}
/**
* Set email
*
* @param string $email
*
* @return Questionnaire
*/
public function setEmail($email)
{
$this->email = $email;
return $this;
}
/**
* Get email
*
* @return string
*/
public function getEmail()
{
return $this->email;
}
/**
* Set birthday
*
* @param \DateTime $birthday
*
* @return Questionnaire
*/
public function setBirthday($birthday)
{
$this->birthday = $birthday;
return $this;
}
/**
* Get birthday
*
* @return \DateTime
*/
public function getBirthday()
{
return $this->birthday;
}
/**
* Set shoeSize
*
* @param integer $shoeSize
*
* @return Questionnaire
*/
public function setShoeSize($shoeSize)
{
$this->shoeSize = $shoeSize;
return $this;
}
/**
* Get shoeSize
*
* @return integer
*/
public function getShoeSize()
{
return $this->shoeSize;
}
}
/**
* SecondQuestions
*/
class SecondQuestions extends Questionnaire {
/**
* @var string
*
* @ORM\Column(name="favoriteIceCream", type="string", length=128)
*/
private $favoriteIceCream;
/**
* @var string
*
* @ORM\Column(name="favoriteSuperHero", type="string", length=32)
*/
private $favoriteSuperHero;
/**
* @var string
*
* @ORM\Column(name="favoriteMovieStar", type="string", length=64)
*/
private $favoriteMovieStar;
/**
* @var \DateTime
*
* @ORM\Column(name="endOfTheWorld", type="date")
*/
private $endOfTheWorld;
/**
* @var string
*
* @ORM\Column(name="superBowlWinner", type="string", length=32)
*/
private $superBowlWinner;
/**
* Set favoriteIceCream
*
* @param string $favoriteIceCream
*
* @return Questionnaire
*/
public function setFavoriteIceCream($favoriteIceCream)
{
$this->favoriteIceCream = $favoriteIceCream;
return $this;
}
/**
* Get favoriteIceCream
*
* @return string
*/
public function getFavoriteIceCream()
{
return $this->favoriteIceCream;
}
/**
* Set favoriteSuperHero
*
* @param string $favoriteSuperHero
*
* @return Questionnaire
*/
public function setFavoriteSuperHero($favoriteSuperHero)
{
$this->favoriteSuperHero = $favoriteSuperHero;
return $this;
}
/**
* Get favoriteSuperHero
*
* @return string
*/
public function getFavoriteSuperHero()
{
return $this->favoriteSuperHero;
}
/**
* Set favoriteMovieStar
*
* @param string $favoriteMovieStar
*
* @return Questionnaire
*/
public function setFavoriteMovieStar($favoriteMovieStar)
{
$this->favoriteMovieStar = $favoriteMovieStar;
return $this;
}
/**
* Get favoriteMovieStar
*
* @return string
*/
public function getFavoriteMovieStar()
{
return $this->favoriteMovieStar;
}
/**
* Set endOfTheWorld
*
* @param \DateTime $endOfTheWorld
*
* @return Questionnaire
*/
public function setEndOfTheWorld($endOfTheWorld)
{
$this->endOfTheWorld = $endOfTheWorld;
return $this;
}
/**
* Get endOfTheWorld
*
* @return \DateTime
*/
public function getEndOfTheWorld()
{
return $this->endOfTheWorld;
}
/**
* Set superBowlWinner
*
* @param string $superBowlWinner
*
* @return Questionnaire
*/
public function setSuperBowlWinner($superBowlWinner)
{
$this->superBowlWinner = $superBowlWinner;
return $this;
}
/**
* Get superBowlWinner
*
* @return string
*/
public function getSuperBowlWinner()
{
return $this->superBowlWinner;
}
}
所以，問題是，當我試圖創建子類的對象（FirstQuestions或SecondsQuestions）的控制器，Symfony的顯示器的方法我錯誤「500內部服務器錯誤」。控制器的代碼與方法如下：
namespace AppBundle\Controller;
use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpFoundation\Request;
use AppBundle\Entity\Questionnaire;
use AppBundle\Entity\FirstQuestions;
use AppBundle\Entity\SecondQuestions;
class TestController extends Controller
{
/**
* @Route("/test", name="test")
*/
public function indexAction(Request $request)
{
$item = new FirstQuestions(); // everything works well without this line
return new Response(
'ok'
);
}
}
也許我做錯了什麼或沒有設置任何重要的註釋。誰能幫我？
非常感謝你的幫助，男人。愚蠢的我，問題是我沒有清理/應用程序/緩存目錄和新的變化與註釋因爲它沒有生效。現在一切正常，我可以創建子對象。 –
太棒了！聽到那個消息很開心。 – Ragdata