Sonata Admin Bundle - Custom field with URL

Question

Is there way to show url with filter to another entity list instead of showing all related entities?

My entity has OneToMany reference to it's events:

/**
 *
 * @ORM\OneToMany(targetEntity="Event", mappedBy="organizer", cascade={"ALL"})
 */
private $events;

$formMapper->add('events') shows me select2 input with all events.

I just want to show a link to events list with filter to current owner.

I'm using Symfony 2.5.

Answer 1

Yes, this is possible.

You have to get the current owner and create a custom query builder to get only the events related to the owner identifier.

protected function configureFormFields(FormMapper $formMapper)
{
    // get current owner
    $ownerId = $this->subject->getId();
    // using query_builder to create a custom query based on current owner
    $formMapper->add('events', null, array(
        'query_builder' => function(EntityRepository $er) use ($ownerId) {
            $events = $er->createQueryBuilder('e');
            if ($ownerId != null) {
                $events = $er->where('e.owner = :ownerId')
                             ->setParameter('ownerId', $ownerId);
            }
            return $events;
        }
    ));
}

Also don't forget to add the use for EntityRepository :

use Doctrine\\ORM\\EntityRepository;