FindByTags with Symfony2? - symfony

Question

I grab this kind of array.
This is a var_dump of my $tags variable.
array(2) { [0]=> string(1) "3" [1]=> string(1) "4" }
My entity
<?php
namespace Lan\CrmBundle\Entity;
use Doctrine\ORM\Mapping AS ORM;
use Symfony\Component\Validator\Constraints as Assert;
/**
* #ORM\Entity
*/
class Link
{
/**
* #ORM\Id
* #ORM\Column(type="integer")
* #ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* #ORM\Column(type="string", length=255, nullable=false)
* #Assert\NotBlank()
*/
private $url;
/**
* #ORM\Column(type="text", nullable=true)
*/
private $description;
/**
* #ORM\Column(type="datetime", nullable=true)
*/
private $created_at;
/**
* #ORM\ManyToOne(targetEntity="Lan\SecurityBundle\Entity\User", inversedBy="links")
* #ORM\JoinColumn(name="user_id", referencedColumnName="id")
*/
private $user;
/**
* #ORM\ManyToMany(targetEntity="Lan\CrmBundle\Entity\LinkTag", inversedBy="links")
* #ORM\JoinTable(
* name="LinkTagToLink",
* joinColumns={#ORM\JoinColumn(name="link_id", referencedColumnName="id", nullable=false)},
* inverseJoinColumns={#ORM\JoinColumn(name="link_tag_id", referencedColumnName="id", nullable=false)}
* )
*/
private $tags;
/**
* Get id
*
* #return integer
*/
public function getId()
{
return $this->id;
}
/**
* Set url
*
* #param string $url
* #return Link
*/
public function setUrl($url)
{
$this->url = $url;
return $this;
}
/**
* Get url
*
* #return string
*/
public function getUrl()
{
return $this->url;
}
/**
* Set description
*
* #param string $description
* #return Link
*/
public function setDescription($description)
{
$this->description = $description;
return $this;
}
/**
* Get description
*
* #return string
*/
public function getDescription()
{
return $this->description;
}
/**
* Set created_at
*
* #param \DateTime $createdAt
* #return Link
*/
public function setCreatedAt($createdAt)
{
$this->created_at = $createdAt;
return $this;
}
/**
* Get created_at
*
* #return \DateTime
*/
public function getCreatedAt()
{
return $this->created_at;
}
/**
* Set user
*
* #param \Lan\SecurityBundle\Entity\User $user
* #return Link
*/
public function setUser(\Lan\SecurityBundle\Entity\User $user = null)
{
$this->user = $user;
return $this;
}
/**
* Get user
*
* #return \Lan\SecurityBundle\Entity\User
*/
public function getUser()
{
return $this->user;
}
/**
* Constructor
*/
public function __construct()
{
$this->tags = new \Doctrine\Common\Collections\ArrayCollection();
}
/**
* Add tags
*
* #param \Lan\CrmBundle\Entity\LinkTag $tags
* #return Link
*/
public function addTag(\Lan\CrmBundle\Entity\LinkTag $tags)
{
$this->tags[] = $tags;
return $this;
}
/**
* Remove tags
*
* #param \Lan\CrmBundle\Entity\LinkTag $tags
*/
public function removeTag(\Lan\CrmBundle\Entity\LinkTag $tags)
{
$this->tags->removeElement($tags);
}
/**
* Get tags
*
* #return \Doctrine\Common\Collections\Collection
*/
public function getTags()
{
return $this->tags;
}
}
My entire controller:
namespace Lan\CrmBundle\Controller;
use Lan\CrmBundle\Entity\Link;
use Lan\CrmBundle\Form\LinkType;
use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use Symfony\Component\HttpFoundation\Request;
class LinkController extends Controller {
public function indexAction(Request $request)
{
$em = $this->getDoctrine()->getManager();
$tags = $em->getRepository('LanCrmBundle:LinkTag')->findAll();
if($request->query->has('tags')) {
$tags = $request->query->get('tags');
//var_dump($tags); die();
$links = $em->getRepository('LanCrmBundle:Link')->findByTags($tags);
var_dump($links); die();
} else {
$links = $em->getRepository('LanCrmBundle:Link')->findBy(
array(),
array('id' => 'desc')
);
}
$paginator = $this->get('knp_paginator');
$pagination = $paginator->paginate(
$links,
$this->get('request')->query->get('page', 1),
4
);
return $this->render('LanCrmBundle:Link:index.html.twig', compact('pagination', 'tags'));
}
}
But I got this error:
ContextErrorException: Notice: Undefined index: joinColumns in ...
I think I can't use ->findByTags() like I want...
Thanks in advance!

Answer 1

I don't think you can findByTags because SF2 won't know if you want AND or OR for tags.
The only solution I can suggest you is that you need to query from link_tag table (use repository LanCrmBundle:LinkTag) manually to get all link.id then continue to retrieve link data using LanCrmBundle:Link.

Answer 2

I found a way but not really what I want :
public function findByUsersAndTags($users, $tags)
{
$queryBuilder = $this->createQueryBuilder('l')
->leftJoin('l.tags', 't')->addSelect('t')
->leftJoin('l.user', 'u')->addSelect('u')
->orderBy('l.id', 'desc');
if($users) {
foreach($users as $user_id) {
$queryBuilder->orHaving('u.id = :id')->setParameter('id', $user_id);
}
}
if($tags) {
foreach($tags as $tag_id) {
$queryBuilder->orHaving('t.id = :id')->setParameter('id', $tag_id);
}
}
return $queryBuilder->getQuery()->getResult();
}