Symfony2 - Join with Native Query - php

Question

I'm trying to putting up my first join with Symfony2 createNativeQuery.
I made the first one without join and there's no problem.
I think I lost some steps, to follow my code:
$rsm = new ResultSetMapping;
$rsm
->addEntityResult('Art\ArticleBundle\Entity\ArticleData', 'ad')
// ->addEntityResult('Art\ArticleBundle\Entity\Article', 'a')
// ->addFieldResult('ad', 'id', 'article_data_id')
->addJoinedEntityResult('Art\ArticleBundle\Entity\Article', 'a', 'ad', 'article')
->addFieldResult('a', 'date_article', 'dateArticle');
$query = $this->_em->createNativeQuery(
'SELECT ad.id AS article_data_id, ad.title, ad.abstract '
. 'FROM art_article_data ad '
. 'INNER JOIN art_article ON (ad.article_id = a.id) '
,
$rsm
);
return $query->getResult();
It returns the following error:
SQLSTATE[42S22]: Column not found: 1054 Unknown column 'a.id' in 'on clause'").
Why a.id is unknown? It is within the entity and the table.
What step have I lost ?

Answer 1

As #Javad required, below there's the Article entity
<?php
namespace Art\ArticleBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
use Doctrine\Common\Collections\ArrayCollection;
use Art\ArticleBundle\Entity\ArticleType;
use Art\ArticleBundle\Entity\ArticleCategory;
use Art\ArticleBundle\Entity\ArticleData;
use Art\ArticleBundle\Entity\ArticleHasBrand;
/**
* Article
*
* #ORM\Entity(repositoryClass="Art\ArticleBundle\Entity\Repository\ArticleRepository")
* #ORM\Table(name="art_article", options={"collate"="utf8_general_ci", "charset"="utf8"})
* #ORM\HasLifecycleCallbacks()
*/
class Article
{
function __construct()
{
$this->articles__article_data = new ArrayCollection();
$this->articles_article_has_brand = new ArrayCollection();
$this->setDateInsert(new \DateTime);
$this->setDateEdit(new \DateTime);
$this->setIsVisible(1);
$this->setIsMain(0);
$this->setOrd(0);
}
function __toString()
{
// $this->dateArticle;
}
/**
* #var integer
*
* #ORM\Id
* #ORM\Column(name="id", type="integer", options={"unsigned"=true})
* #ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* #var \stdClass
*
* #ORM\ManyToOne(targetEntity="ArticleType", inversedBy="article_types__article")
* #ORM\JoinColumn(name="article_type_id", referencedColumnName="id", nullable=false)
* #ORM\GeneratedValue(strategy="IDENTITY")
*/
private $articleType;
/**
* #var \stdClass
*
* #ORM\ManyToOne(targetEntity="ArticleCategory", inversedBy="article_categories__article")
* #ORM\JoinColumn(name="article_category_id", referencedColumnName="id", nullable=true)
* #ORM\GeneratedValue(strategy="IDENTITY")
*/
private $articleCategory;
/**
* #var \DateTime
*
* #ORM\Column(name="date_article", type="date", nullable=true)
*/
private $dateArticle;
/**
* #var string
*
* #ORM\Column(name="url", type="string", length=127, nullable=true)
*/
private $url;
/**
* #var \DateTime
*
* #ORM\Column(name="date_insert", type="datetime", nullable=false)
*/
private $dateInsert;
/**
* #var \DateTime
*
* #ORM\Column(name="date_edit", type="datetime", nullable=true)
*/
private $dateEdit;
/**
* #var boolean
*
* #ORM\Column(name="is_visible", type="boolean", options={"unsigned"=true, "default"=1}, nullable=false)
*/
private $isVisible;
/**
* #var boolean
*
* #ORM\Column(name="is_main", type="boolean", options={"unsigned"=true, "default"=0}, nullable=false)
*/
private $isMain;
/**
* #var integer
*
* #ORM\Column(name="ord", type="integer", options={"unsigned"=true, "default"=0}, nullable=true)
*/
private $ord;
/**
* #var object
*
* #ORM\OneToMany(targetEntity="ArticleData", mappedBy="article")
*/
private $articles__article_data;
/**
* #var object
*
* #ORM\OneToMany(targetEntity="ArticleHasBrand", mappedBy="article")
*/
private $articles_article_has_brand;
/**
* Get id
*
* #return integer
*/
public function getId()
{
return $this->id;
}
/**
* Set dateArticle
*
* #param \DateTime $dateArticle
* #return Article
*/
public function setDateArticle($dateArticle)
{
$this->dateArticle = $dateArticle;
return $this;
}
/**
* Get dateArticle
*
* #return \DateTime
*/
public function getDateArticle()
{
return $this->dateArticle;
}
/**
* Get url
*
* #return string
*/
public function getUrl()
{
return $this->url;
}
/**
* Set dateInsert
*
* #param string $url
* #return Article
*/
public function setUrl($url)
{
$this->url = $url;
}
/**
* Set dateInsert
*
* #param \DateTime $dateInsert
* #return Article
*/
public function setDateInsert($dateInsert)
{
$this->dateInsert = $dateInsert;
return $this;
}
/**
* Get dateInsert
*
* #return \DateTime
*/
public function getDateInsert()
{
return $this->dateInsert;
}
/**
* Set dateEdit
*
* #param \DateTime $dateEdit
* #return Article
*/
public function setDateEdit($dateEdit)
{
$this->dateEdit = $dateEdit;
return $this;
}
/**
* Get dateEdit
*
* #return \DateTime
*/
public function getDateEdit()
{
return $this->dateEdit;
}
/**
* Set isVisible
*
* #param boolean $isVisible
* #return Article
*/
public function setIsVisible($isVisible)
{
$this->isVisible = $isVisible;
return $this;
}
/**
* Get isVisible
*
* #return boolean
*/
public function getIsVisible()
{
return $this->isVisible;
}
/**
* Set isMain
*
* #param boolean $isMain
* #return Article
*/
public function setIsMain($isMain)
{
$this->isMain = $isMain;
return $this;
}
/**
* Get isMain
*
* #return boolean
*/
public function getIsMain()
{
return $this->isMain;
}
/**
* Set ord
*
* #param integer $ord
* #return Article
*/
public function setOrd($ord)
{
$this->ord = $ord;
return $this;
}
/**
* Get ord
*
* #return integer
*/
public function getOrd()
{
return $this->ord;
}
/**
* Set articleType
*
* #param \Art\ArticleBundle\Entity\ArticleType $articleType
* #return Article
*/
public function setArticleType(ArticleType $articleType = null)
{
$this->articleType = $articleType;
return $this;
}
/**
* Get articleType
*
* #return \Art\ArticleBundle\Entity\ArticleType
*/
public function getArticleType()
{
return $this->articleType;
}
/**
* Set articleCategory
*
* #param \Art\ArticleBundle\Entity\ArticleCategory $articleCategory
* #return Article
*/
public function setArticleCategory(ArticleCategory $articleCategory = null)
{
$this->articleCategory = $articleCategory;
return $this;
}
/**
* Get articleCategory
*
* #return \Art\ArticleBundle\Entity\ArticleCategory
*/
public function getArticleCategory()
{
return $this->articleCategory;
}
/**
* Add articles__article_data
*
* #param \Art\ArticleBundle\Entity\ArticleData $articlesArticleData
* #return Article
*/
public function addArticlesArticleData(ArticleData $articlesArticleData)
{
$this->articles__article_data[] = $articlesArticleData;
return $this;
}
/**
* Remove articles__article_data
*
* #param \Art\ArticleBundle\Entity\ArticleData $articlesArticleData
*/
public function removeArticlesArticleData(ArticleData $articlesArticleData)
{
$this->articles__article_data->removeElement($articlesArticleData);
}
/**
* Get articles__article_data
*
* #return \Doctrine\Common\Collections\Collection
*/
public function getArticlesArticleData()
{
return $this->articles__article_data;
}
/**
* Add articles_article_has_brand
*
* #param \Art\ArticleBundle\Entity\ArticleHasBrand $articlesArticleHasBrand
* #return Article
*/
public function addArticlesArticleHasBrand(ArticleHasBrand $articlesArticleHasBrand)
{
$this->articles_article_has_brand[] = $articlesArticleHasBrand;
return $this;
}
/**
* Remove articles_article_has_brand
*
* #param \Art\ArticleBundle\Entity\ArticleHasBrand $articlesArticleHasBrand
*/
public function removeArticlesArticleHasBrand(ArticleHasBrand $articlesArticleHasBrand)
{
$this->articles_article_has_brand->removeElement($articlesArticleHasBrand);
}
/**
* Get articles_article_has_brand
*
* #return \Doctrine\Common\Collections\Collection
*/
public function getArticlesArticleHasBrand()
{
return $this->articles_article_has_brand;
}
}

Answer 2

Your query should be:
$query = $this->_em->createNativeQuery(
'SELECT ad.id AS article_data_id, ad.title, ad.abstract '
. 'FROM art_article_data ad '
. 'INNER JOIN art_article a ON (ad.article_id = a.id) '
,
$rsm
);
You missed the alias for art_article