JMS シリアライザー バンドルを使用して Doctrine2 エンティティを JSON にシリアライズしようとしています。すべての設定が完了しましたが、何かを JSON にシリアル化しようとすると、次のエラーが発生します。
Fatal error: Cannot access private property Snow\FrontBundle\Entity\District::$id in E:\School\SocialGEO Augustus\Coding\socialgeo-php\vendor\jms\metadata\src\Metadata\PropertyMetadata.php on line 46
これは私のコントローラコードです:
public function indexAction() {
$em = $this->getDoctrine()->getManager();
$districts = $em->getRepository('SnowFrontBundle:District')->findAll();
$serializer = $this->get('jms_serializer');
echo $serializer->serialize($districts, 'json');
return array(
'districts' => $districts
);
}
最後に、これは私の District エンティティです。
<?php
namespace Snow\FrontBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
/**
* District
*
* @ORM\Table(name="district")
* @ORM\Entity(repositoryClass="Snow\FrontBundle\Entity\Repositories\DistrictRepository")
*/
class District {
/**
* @var integer
*
* @ORM\Column(name="id", type="integer")
* @ORM\Id
* @ORM\GeneratedValue(strategy="AUTO")
*/
public $id;
/**
* @var string
*
* @ORM\Column(name="name", type="string", length=100)
*/
public $name;
/**
* @var string
*
* @ORM\Column(name="bigimage", type="string", length=100)
*/
public $bigimage;
/**
* @var string
*
* @ORM\Column(name="smallimage", type="string", length=100)
*/
public $smallimage;
/**
* @var string
*
* @ORM\Column(name="info", type="text")
*/
public $info;
/**
*
* @ORM\ManyToOne(targetEntity="City", inversedBy="districts")
* @ORM\JoinColumn(name="city_id", referencedColumnName="id")
*/
protected $city;
/**
*
* @ORM\OneToMany(targetEntity="District", mappedBy="city")
*/
protected $locations;
/**
*
* @var \Doctrine\Common\Collections\ArrayCollection $articles
* @ORM\ManyToMany(targetEntity="Article", mappedBy="districts")
*/
protected $articles;
/**
*
* @var \Doctrine\Common\Collections\ArrayCollection $workers
*
* @ORM\ManyToMany(targetEntity="User", inversedBy="districts")
* @ORM\JoinTable(name="workers_districts",
* joinColumns={@ORM\JoinColumn(name="district_id", referencedColumnName="id")},
* inverseJoinColumns={@ORM\JoinColumn(name="user_id", referencedColumnName="id")}
* )
*/
protected $workers;
/**
*
* @var \Doctrine\Common\Collections\ArrayCollection $userbookmarks
* @ORM\ManyToMany(targetEntity="User", mappedBy="favDistricts")
*/
protected $userbookmarks;
/**
* Get id
*
* @return integer
*/
public function getId() {
return $this->id;
}
/**
* Set name
*
* @param string $name
* @return District
*/
public function setName($name) {
$this->name = $name;
return $this;
}
/**
* Get name
*
* @return string
*/
public function getName() {
return $this->name;
}
/**
* Set info
*
* @param string $info
* @return District
*/
public function setInfo($info) {
$this->info = $info;
return $this;
}
/**
* Get info
*
* @return string
*/
public function getInfo() {
return $this->info;
}
/**
* Set city
*
* @param \Snow\FrontBundle\Entity\City $city
* @return District
*/
public function setCity(\Snow\FrontBundle\Entity\City $city = null) {
$this->city = $city;
return $this;
}
/**
* Get city
*
* @return \Snow\FrontBundle\Entity\City
*/
public function getCity() {
return $this->city;
}
/**
* Constructor
*/
public function __construct() {
$this->locations = new \Doctrine\Common\Collections\ArrayCollection();
}
/**
* Add locations
*
* @param \Snow\FrontBundle\Entity\District $locations
* @return District
*/
public function addLocation(\Snow\FrontBundle\Entity\District $locations) {
$this->locations[] = $locations;
return $this;
}
/**
* Remove locations
*
* @param \Snow\FrontBundle\Entity\District $locations
*/
public function removeLocation(\Snow\FrontBundle\Entity\District $locations) {
$this->locations->removeElement($locations);
}
/**
* Get locations
*
* @return \Doctrine\Common\Collections\Collection
*/
public function getLocations() {
return $this->locations;
}
/**
* Add articles
*
* @param \Snow\FrontBundle\Entity\Article $articles
* @return District
*/
public function addArticle(\Snow\FrontBundle\Entity\Article $articles) {
$this->articles[] = $articles;
return $this;
}
/**
* Remove articles
*
* @param \Snow\FrontBundle\Entity\Article $articles
*/
public function removeArticle(\Snow\FrontBundle\Entity\Article $articles) {
$this->articles->removeElement($articles);
}
/**
* Get articles
*
* @return \Doctrine\Common\Collections\Collection
*/
public function getArticles() {
return $this->articles;
}
/**
*
* @return string
*/
public function __toString() {
return $this->getName();
}
/**
* Add workers
*
* @param \Snow\FrontBundle\Entity\User $workers
* @return District
*/
public function addWorker(\Snow\FrontBundle\Entity\User $workers) {
$this->workers[] = $workers;
return $this;
}
/**
* Remove workers
*
* @param \Snow\FrontBundle\Entity\User $workers
*/
public function removeWorker(\Snow\FrontBundle\Entity\User $workers) {
$this->workers->removeElement($workers);
}
/**
* Get workers
*
* @return \Doctrine\Common\Collections\Collection
*/
public function getWorkers() {
return $this->workers;
}
/**
* Set bigimage
*
* @param string $bigimage
* @return District
*/
public function setBigimage($bigimage) {
$this->bigimage = $bigimage;
return $this;
}
/**
* Get bigimage
*
* @return string
*/
public function getBigimage() {
return $this->bigimage;
}
/**
* Set smallimage
*
* @param string $smallimage
* @return District
*/
public function setSmallimage($smallimage) {
$this->smallimage = $smallimage;
return $this;
}
/**
* Get smallimage
*
* @return string
*/
public function getSmallimage() {
return $this->smallimage;
}
/**
* Add userbookmarks
*
* @param \Snow\FrontBundle\Entity\User $userbookmarks
* @return District
*/
public function addUserbookmark(\Snow\FrontBundle\Entity\User $userbookmarks) {
$this->userbookmarks[] = $userbookmarks;
return $this;
}
/**
* Remove userbookmarks
*
* @param \Snow\FrontBundle\Entity\User $userbookmarks
*/
public function removeUserbookmark(\Snow\FrontBundle\Entity\User $userbookmarks) {
$this->userbookmarks->removeElement($userbookmarks);
}
/**
* Get userbookmarks
*
* @return \Doctrine\Common\Collections\Collection
*/
public function getUserbookmarks() {
return $this->userbookmarks;
}
}
なぜこれが起こっているのか誰にも分かりますか？エンティティですべてを公開に設定すれば、もう少し先に進むことができるように思えますが、そうすべきではないと何かが教えてくれます。そうすると、次のような Symfony2 エラーが表示されます。
An exception occurred while executing 'SELECT t0.id AS id1, t0.title AS title2, t0.path AS path3, t0.description AS description4, t0.createddate AS createddate5, t0.publisheddate AS publisheddate6, t0.deleteddate AS deleteddate7, t0.published AS published8, t0.url AS url9, t0.location_id AS location_id10, t0.user_id AS user_id11, t0.mediatype_id AS mediatype_id12 FROM media t0 WHERE t0.user_id = ?' with params {"1":6}:
SQLSTATE[42S22]: Column not found: 1054 Unknown column 't0.location_id' in 'field list'
ご協力いただきありがとうございます。