Doctrine 2 Model One-to-Many Many-to-One Queries - php

Question

I have such doctrine entities:
<?php
namespace App\Entity;
use Doctrine\Common\Collections\ArrayCollection;
/**
* #Entity(repositoryClass="App\Repository\Page")
* #Table(name="page")
*/
class Page
{
/**
* #Id #Column(type="integer", name="p_id")
* #GeneratedValue
*/
private $p_id;
/** #Column(type="string", name="p_title") */
private $p_title;
/** #Column(type="datetime", name="p_created") */
private $p_created_at;
/** #Column(type="datetime", name="p_updated_at") */
private $p_updated_at;
/** #Column(type="text", name="p_abstract") */
private $p_abstract;
/** #Column(type="text", name="p_fulltext", nullable=false) */
private $p_fulltext;
/** #Column(type="string", name="p_author", nullable=true) */
private $p_author;
/** #Column(type="string", name="p_url",nullable=true) */
private $p_url;
/** #Column(type="string", name="p_meta_title",nullable=true) */
private $p_meta_title;
/** #Column(type="string", name="p_meta_keywords",nullable=true) */
private $p_meta_keywords;
/** #Column(type="string", name="p_meta_description",nullable=true) */
private $p_meta_description;
/** #Column(type="string", name="p_status") */
private $p_status;
/**
* #ManyToOne(targetEntity="User", inversedBy="pages")
* #JoinColumn(name="p_u_id", referencedColumnName="u_id")
*/
private $user;
/**
* #OneToMany(targetEntity="App\Entity\Page\Media", mappedBy="pages")
* #var \Doctrine\Common\Collections\Collection
*/
protected $pageMedia;
/**
* #OneToMany(targetEntity="App\Entity\Page\Basket", mappedBy="baskets")
* #var \Doctrine\Common\Collections\Collection
*/
protected $pageBasket;
public function __construct()
{
$this->pageMedia = new App\Entity\Page\Media();
$this->medias = new ArrayCollection();
}
public function __get($property)
{
return $this->property;
}
public function __set($property,$value)
{
$this->$property = $value;
}
public function setUser(user $user)
{
$this->user = $user;
}
public function setMedia(media $media)
{
$this->pageMedia->setPageAndMedia($this,$media);
}
/**
* Set Page Values
* #var array $values
*/
public function setPageProperties(array $values)
{
$this->p_updated_at = new \DateTime("now");
$this->p_title = $values['p_title'];
$this->p_abstract = $values['p_abstract'];
$this->p_meta_title = $values['p_meta_title'];
$this->p_meta_keywords = $values['p_meta_keywords'];
$this->p_meta_description = $values['p_meta_description'];
$this->p_url = $values['p_url'];
$this->p_fulltext = $values['p_abstract'];
$this->p_author = '';
$this->p_status = 1;
}
}
?>
<?php
namespace App\Entity\Page;
use Doctrine\Common\Collections\ArrayCollection;
/**
* #Entity
* #Table(name="page_basket")
*/
class Basket
{
/**
* #Id #Column(type="integer", name="pb_id")
* #GeneratedValue
*/
private $pb_id;
/**
* #ManyToOne(targetEntity="App\Entity\Page")
* #JoinColumn(name="pb_p_id", referencedColumnName="p_id")
*/
private $pages;
/**
* #ManyToOne(targetEntity="App\Entity\Basket",inversedBy="pageBasket")
* #JoinColumn(name="pb_b_id", referencedColumnName="b_id")
*/
private $baskets;
public function __construct()
{
$this->baskets = new ArrayCollection();
$this->pages = new ArrayCollection();
}
public function __get($property)
{
return $this->property;
}
public function __set($property,$value)
{
$this->$property = $value;
}
/**
*
*/
public function setPageAnBasket(page $page,basket $basket)
{
$this->pages[] = $page;
$this->baskets[] = $basket;
}
}
?>
And method in repository:
<?php
namespace App\Repository;
use Doctrine\ORM\EntityRepository;
class Page extends EntityRepository
{
/**
* Find pages by basket Id
* #var int $basketId
* #return array $pages[]
*/
public function findPagesByBasket($basketId)
{
$dql = $this->_em->createQueryBuilder();
$dql->select('u')
->from('App\Entity\Page', 'p')
->leftJoin('p.App\Entity\Page\Basket','pb_b_id = p_id')
->andWhere('pb_b_id = :basketId')
->setParameter('basketId', $basketId);
return $dql->getQuery()->getArrayResult();
}
}
But when I ry to run dql all I'm getting:
string '[Semantical Error] line 0, col 67 near 'pb_b_id = p_id': Error: Class App\Entity\Page has no association named App\Entity\Page\Basket'
What I'm doing wrong because I don't want to use many to many relation because I wanna have additional fields in join table.

Answer 1

I needed a good excuse to make myself a simple test case so here it is.
namespace Entity;
use Doctrine\Common\Collections\ArrayCollection;
/**
* #Entity()
* #Table(name="page")
*/
class Page
{
/**
* #Id #Column(type="integer", name="p_id")
* #GeneratedValue
*/
private $id;
/**
* #OneToMany(targetEntity="Entity\PageBasket", mappedBy="page")
*/
protected $pageBaskets;
public function __construct()
{
$this->pageBaskets = new ArrayCollection();
}
public function getId() { return $this->id; }
public function getPageBaskets() { return $this->pageBaskets; }
}
namespace Entity;
use Doctrine\Common\Collections\ArrayCollection;
/**
* #Entity
* #Table(name="page_basket")
*/
class PageBasket
{
/**
* #Id #Column(type="integer", name="pb_id")
* #GeneratedValue
*/
private $id;
/**
* #ManyToOne(targetEntity="Entity\Page")
* #JoinColumn(name="page_id", referencedColumnName="p_id")
*/
private $page;
public function setPage($page)
{
$this->page = $page;
}
public function getId() { return $this->id; }
}
And a working test query
protected function testQuery()
{
$basketId = 1;
$em = $this->getEntityManager();
$qb = $em->createQueryBuilder();
$qb->addSelect('page');
$qb->addSelect('pageBasket');
$qb->from('\Entity\Page','page');
$qb->leftJoin('page.pageBaskets','pageBasket');
$qb->andWhere($qb->expr()->in('pageBasket.id',$basketId));
$query = $qb->getQuery();
$results = $query->getResult();
$page = $results[0];
$pageBaskets = $page->getPageBaskets();
$pageBasket = $pageBaskets[0];
echo 'Result Count ' . count($results) . "\n";
echo 'Page ID ' . $page->getId() . "\n";
echo 'Page Basket ID ' . $pageBasket->getId() . "\n";
echo $query->getSQL() . "\n";
}
The generated sql look like:
SELECT p0_.p_id AS p_id0, p1_.pb_id AS pb_id1, p1_.page_id AS page_id2
FROM page p0_
LEFT JOIN page_basket p1_ ON p0_.p_id = p1_.page_id
WHERE p1_.pb_id IN (1)