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How can I implement a Doctrine2 filter based on relationships?

I have a Doctrine2 listener and filter that acts as a means of filtering out any unauthorized / drafts that work fine on the entity to which it is applicable, however I don’t see how to make it work on its relationship.

Suppose the object is called Category, then I have products associated with this category, when I do findBy()for products, I need a request to check that the category to which they belong is approved.

select * from products p
left join category c on p.category_id = c.id
where p.id = 5 and c.approved = true

Bits in bold must be entered by my filter or equivalent.

How can i implement this?

So far, I have a subquery introduced as part of where in the filter, but that seems hellish, and I think there should be a better way:

class ApprovableFilter extends SQLFilter
{
    protected $listener;
    protected $entityManager;

    public function addFilterConstraint(ClassMetadata $targetEntity, $targetTableAlias)
    {
        $config = $this->getListener()->getConfiguration($this->getEntityManager(), $targetEntity->name);

        /* this bit works fine for the category */

        if (isset($config['approvable']) && $config['approvable']) {
            $column = $targetEntity->columnNames[$config['fieldName']];

            return $targetTableAlias.'.'.$column.' = true';
        }

        /* this bit works for products.. but seems like a pretty poor solution */

        if (isset($targetEntity->associationMappings['category'])) {
            $config = $this->getListener()->getConfiguration(
                $this->getEntityManager(),
                $targetEntity->associationMappings['category']['targetEntity']
            );

            return '(
                select d.id from dealership d
                where d.id = '.$targetTableAlias.'.dealership_id
                and d.'.$config['fieldName'].' = true
            ) is not null';
        }
    }
+5
2

, , Category.
, category.approved.

:

public function addFilterConstraint(ClassMetadata $targetEntity, $targetTableAlias)
{
    $config = $this->getListener()->getConfiguration($this->getEntityManager(), $targetEntity->name);

    /* this bit works fine for the category */

    if (isset($config['approvable']) && $config['approvable']) {
        $column = $targetEntity->columnNames[$config['fieldName']];

        return $targetTableAlias.'.'.$column.' = true';
    }
}

Category ( , ).

use Doctrine\Common\Collections\ArrayCollection;

class Category {
    /**
     * @var ArrayCollection $products
     * @ORM\OneToMany(targetEntity="Product", mappedBy="category")
     */
    private $products;

    public function __construct()
    {
        $this->products = new ArrayCollection;
    }

    public function getProducts()
    {
        return $this->products;
    }
}

,

$category = $this->get('doctrine')->getRepository('SomeBundle:Category')->find(5);
if( $category ) {
    //Here you now the category is approved
    $products = $category->getProducts();
}

, .

:

@lracicot : ProjectRepository, :

...
findByCategoryApproved( $product_id, $approved = true )
{
    $query =
        'SELECT p
         FROM AcmeBundle:Product
         LEFT JOIN p.categories c
         WHERE p.id = :id AND c.approved = :approved';

    return $this
        ->getEntityManager()
        ->createQuery( $query )
        ->setParameter( 'id', $product_id )
        ->setParameter( 'approved', $approved )
        ->getOneOrNullResult();
}

...

$product = $doctrine
     ->getRepository('AcmeBundle:Product')
     ->findByCategoryApproved(5);
+1

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