Doctrine & Symfony2 join multiple tables - php

Question

I've been struggling with doing a multiple join in DQL.
Here is my code:
$query = $em->createQuery(
'SELECT k
FROM AppBundle:Keyword k
JOIN k.company c
JOIN k.entry e
WHERE c.user = :id
ORDER BY k.name ASC'
)->setParameter('id',$user_id);
But it gives me "Notice: Undefined index: entry", when executing it.
Here is my keyword entity:
<?php
namespace AppBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
/**
* Keyword
*/
class Keyword
{
/**
* #var integer
*/
private $id;
/**
* #var string
*/
private $name;
/**
* Get id
*
* #return integer
*/
public function getId()
{
return $this->id;
}
/**
* Set name
*
* #param string $name
* #return Keyword
*/
public function setName($name)
{
$this->name = $name;
return $this;
}
/**
* Get name
*
* #return string
*/
public function getName()
{
return $this->name;
}
/**
* #var \Doctrine\Common\Collections\Collection
*/
private $user;
/**
* Constructor
*/
public function __construct()
{
$this->user = new \Doctrine\Common\Collections\ArrayCollection();
}
/**
* Add user
*
* #param \AppBundle\Entity\User $user
* #return Keyword
*/
public function addUser(\AppBundle\Entity\User $user)
{
$this->user[] = $user;
return $this;
}
/**
* Remove user
*
* #param \AppBundle\Entity\User $user
*/
public function removeUser(\AppBundle\Entity\User $user)
{
$this->user->removeElement($user);
}
/**
* Get user
*
* #return \Doctrine\Common\Collections\Collection
*/
public function getUser()
{
return $this->user;
}
/**
* Set user
*
* #param \AppBundle\Entity\User $user
* #return Keyword
*/
public function setUser(\AppBundle\Entity\User $user = null)
{
$this->user = $user;
return $this;
}
/**
* #var \Doctrine\Common\Collections\Collection
*/
private $company;
/**
* Add company
*
* #param \AppBundle\Entity\Company $company
* #return Keyword
*/
public function addCompany(\AppBundle\Entity\Company $company)
{
$this->company[] = $company;
return $this;
}
/**
* Remove company
*
* #param \AppBundle\Entity\Company $company
*/
public function removeCompany(\AppBundle\Entity\Company $company)
{
$this->company->removeElement($company);
}
/**
* Get company
*
* #return \Doctrine\Common\Collections\Collection
*/
public function getCompany()
{
return $this->company;
}
/**
* Set company
*
* #param \AppBundle\Entity\Company $company
* #return Keyword
*/
public function setCompany(\AppBundle\Entity\Company $company = null)
{
$this->company = $company;
return $this;
}
/**
* #var \Doctrine\Common\Collections\Collection
*/
private $entry;
/**
* Add entry
*
* #param \AppBundle\Entity\Entry $entry
* #return Keyword
*/
public function addEntry(\AppBundle\Entity\Entry $entry)
{
$this->entry[] = $entry;
return $this;
}
/**
* Remove entry
*
* #param \AppBundle\Entity\Entry $entry
*/
public function removeEntry(\AppBundle\Entity\Entry $entry)
{
$this->entry->removeElement($entry);
}
/**
* Get entry
*
* #return \Doctrine\Common\Collections\Collection
*/
public function getEntry()
{
return $this->entry;
}
/**
* #var \Doctrine\Common\Collections\Collection
*/
private $ranking;
/**
* Add ranking
*
* #param \AppBundle\Entity\Ranking $ranking
* #return Keyword
*/
public function addRanking(\AppBundle\Entity\Ranking $ranking)
{
$this->ranking[] = $ranking;
return $this;
}
/**
* Remove ranking
*
* #param \AppBundle\Entity\Ranking $ranking
*/
public function removeRanking(\AppBundle\Entity\Ranking $ranking)
{
$this->ranking->removeElement($ranking);
}
/**
* Get ranking
*
* #return \Doctrine\Common\Collections\Collection
*/
public function getRanking()
{
return $this->ranking;
}
}
And my entry entity:
<?php
namespace AppBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
/**
* Entry
*/
class Entry
{
/**
* #var integer
*/
private $id;
/**
* #var string
*/
private $path;
/**
* Get id
*
* #return integer
*/
public function getId()
{
return $this->id;
}
/**
* Set path
*
* #param string $path
* #return Entry
*/
public function setPath($path)
{
$this->path = $path;
return $this;
}
/**
* Get path
*
* #return string
*/
public function getPath()
{
return $this->path;
}
/**
* #var \AppBundle\Entity\Keyword
*/
private $keyword;
/**
* Set keyword
*
* #param \AppBundle\Entity\Keyword $keyword
* #return Entry
*/
public function setKeyword(\AppBundle\Entity\Keyword $keyword = null)
{
$this->keyword = $keyword;
return $this;
}
/**
* Get keyword
*
* #return \AppBundle\Entity\Keyword
*/
public function getKeyword()
{
return $this->keyword;
}
/**
* #var \Doctrine\Common\Collections\Collection
*/
private $ranking;
/**
* Constructor
*/
public function __construct()
{
$this->ranking = new \Doctrine\Common\Collections\ArrayCollection();
}
/**
* Add ranking
*
* #param \AppBundle\Entity\Ranking $ranking
* #return Entry
*/
public function addRanking(\AppBundle\Entity\Ranking $ranking)
{
$this->ranking[] = $ranking;
return $this;
}
/**
* Remove ranking
*
* #param \AppBundle\Entity\Ranking $ranking
*/
public function removeRanking(\AppBundle\Entity\Ranking $ranking)
{
$this->ranking->removeElement($ranking);
}
/**
* Get ranking
*
* #return \Doctrine\Common\Collections\Collection
*/
public function getRanking()
{
return $this->ranking;
}
}
Btw I'm pretty new with symfony and doctrine.
I appreciate all kinds of help!

Answer 1

You need to provide mapping information for each attribute in your model class as well as provide the Entity mapping for the class. Take a look at http://doctrine-common.readthedocs.org/en/latest/reference/annotations.html
Each of your model classes need the #ORM\Entity annotation to tell doctrine it is a mapped entity. So for your case you would have:
/**
* Entry
* #ORM\Entity
*/
class Entry
{
...
Then each attribute you want to be mapped to the database needs an #ORM\Column annotation. For example:
/**
* #var integer
* #ORM\Id #ORM\Column #ORM\GeneratedValue
*/
private $id;
/**
* #var string
* #ORM\Column(type="string")
*/
private $path;
Then you need to create relationship mapping annotations for any relationships between your models (Keyword -> Company, Keyword -> Entry etc), using one of the mappings on here http://doctrine-orm.readthedocs.org/en/latest/reference/association-mapping.html
Once you have all the correct mappings use the command line tool app/console doctrine:schema:update to make sure your model is in sync with your database.
Your DQL seems fine so once you have the correct mappings in place you might have better luck.