Problem bei dem Versuch, Lehre verwenden Querybuilder

Question

Ich habe zwei Entitäten Categorie und ChampCat mit ManyToMany Beziehung und ich mag mit verwandten ChampCat Liste der Kategorien erhalten, indem Lehre mit Querybuilder so habe ich diese Abfrage verwendet:

class CategorieRepository extends \Doctrine\ORM\EntityRepository 
{ 
    public function myFindCategories(array $tab){ 

     $em = $this->getEntityManager(); 

     $query = $em->select(array('cat', 'ch')) 
        ->from('AnnonceBundle\Entity\Categorie', 'cat') 
        ->join('cat.champsCat', 'ch') 
        ->where('cat.id In (:tabOfIds)') 
        ->setParameter('tabOfIds', array_values($tab)) 
        ->getQuery(); 

     return $query->getResult(); 

    } 


} 

hier können u die Kategorie Entity sehen:

<?php 

namespace AnnonceBundle\Entity; 

use Doctrine\ORM\Mapping as ORM; 

/** 
* Categorie 
* 
* @ORM\Table(name="categorie") 
* @ORM\Entity(repositoryClass="AnnonceBundle\Repository\CategorieRepository") 
*/ 
class Categorie implements \JsonSerializable 
{ 
    /** 
    * @var int 
    * 
    * @ORM\Column(name="id", type="integer") 
    * @ORM\Id 
    * @ORM\GeneratedValue(strategy="AUTO") 
    */ 
    private $id; 

    /** 
    * @var string 
    * 
    * @ORM\Column(name="refCat", type="string", length=100) 
    */ 
    private $refCat; 

    /** 
    * @var string 
    * 
    * @ORM\Column(name="libelleCat", type="string", length=50) 
    */ 
    private $libelleCat; 

    /** 
    * @ORM\ManyToMany(targetEntity="AnnonceBundle\Entity\ChampCat",cascade={"persist"}) 
    */ 
    private $champsCat; 

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

    /** 
    * Set refCat 
    * 
    * @param string $refCat 
    * 
    * @return Categorie 
    */ 
    public function setRefCat($refCat) 
    { 
     $this->refCat = $refCat; 

     return $this; 
    } 

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

    /** 
    * Set libelleCat 
    * 
    * @param string $libelleCat 
    * 
    * @return Categorie 
    */ 
    public function setLibelleCat($libelleCat) 
    { 
     $this->libelleCat = $libelleCat; 

     return $this; 
    } 

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

    /** 
    * Set champsCat 
    * 
    * @param \AnnonceBundle\Entity\ChampCat $champsCat 
    * 
    * @return Categorie 
    */ 
    public function setChampsCat(\AnnonceBundle\Entity\ChampCat $champsCat = null) 
    { 
     $this->champsCat = $champsCat; 

     return $this; 
    } 

    /** 
    * Get champsCat 
    * 
    * @return \AnnonceBundle\Entity\ChampCat 
    */ 
    public function getChampsCat() 
    { 
     return $this->champsCat; 
    } 
    /** 
    * Constructor 
    */ 
    public function __construct() 
    { 
     $this->champsCat = new \Doctrine\Common\Collections\ArrayCollection(); 
    } 

    /** 
    * Add champsCat 
    * 
    * @param \AnnonceBundle\Entity\ChampCat $champsCat 
    * 
    * @return Categorie 
    */ 
    public function addChampsCat(\AnnonceBundle\Entity\ChampCat $champsCat) 
    { 
     $this->champsCat[] = $champsCat; 

     return $this; 
    } 

    /** 
    * Remove champsCat 
    * 
    * @param \AnnonceBundle\Entity\ChampCat $champsCat 
    */ 
    public function removeChampsCat(\AnnonceBundle\Entity\ChampCat $champsCat) 
    { 
     $this->champsCat->removeElement($champsCat); 
    } 

    function jsonSerialize() 
    { 
     return get_object_vars($this); 
    } 
} 

Und das ist ChamCat Entity:

<?php 

namespace AnnonceBundle\Entity; 

use Doctrine\ORM\Mapping as ORM; 

/** 
* ChampCat 
* 
* @ORM\Table(name="champ_cat") 
* @ORM\Entity(repositoryClass="AnnonceBundle\Repository\ChampCatRepository") 
*/ 
class ChampCat implements \JsonSerializable 
{ 
    /** 
    * @var int 
    * 
    * @ORM\Column(name="id", type="integer") 
    * @ORM\Id 
    * @ORM\GeneratedValue(strategy="AUTO") 
    */ 
    private $id; 

    /** 
    *@var string 
    * 
    * @ORM\Column(name="refCh", type="string") 
    */ 
    private $refCh; 



    /** 
    * @var string 
    * 
    * @ORM\Column(name="nom_ch", type="string", length=255) 
    */ 
    private $nomCh; 

    /** 
    * @var bool 
    * 
    * @ORM\Column(name="app_ch", type="boolean") 
    */ 
    private $appCh; 

    /** 
    * @var string 
    * 
    * @ORM\Column(name="format_ch", type="string", length=255) 
    */ 
    private $formatCh; 


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

    /** 
    * Set refCh 
    * 
    * @param integer $refCh 
    * @return ChampCat 
    */ 
    public function setRefCh($refCh) 
    { 
     $this->refCh = $refCh; 

     return $this; 
    } 

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

    /** 
    * Set nomCh 
    * 
    * @param string $nomCh 
    * @return ChampCat 
    */ 
    public function setNomCh($nomCh) 
    { 
     $this->nomCh = $nomCh; 

     return $this; 
    } 

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

    /** 
    * Set appCh 
    * 
    * @param boolean $appCh 
    * @return ChampCat 
    */ 
    public function setAppCh($appCh) 
    { 
     $this->appCh = $appCh; 

     return $this; 
    } 

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

    /** 
    * Set formatCh 
    * 
    * @param string $formatCh 
    * @return ChampCat 
    */ 
    public function setFormatCh($formatCh) 
    { 
     $this->formatCh = $formatCh; 

     return $this; 
    } 

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

    function jsonSerialize() 
    { 
     return get_object_vars($this); 
    } 
} 

Leider hat diese Abfrage nicht funktioniert, was fehlt mir also?

Answer 1

Funktioniert es mit dieser Syntax?

public function myFindCategories(array $tab){ 

    if(count($tab) == 0) return []; //or IN() will bug with an empty array 


    $query = $this->createQueryBuilder('cat') 
       ->addSelect('ch') 
       ->innerJoin('cat.champsCat', 'ch') 
       ->where('cat.id in (:tabOfIds)') 
       ->setParameter('tabOfIds', $tab) 
       ->getQuery(); 

    return $query->getResult(); 

}