SonataAdminBundle, filtering by function result

Question

In my Symfony project I'm using SonataAdminBundle. And I got a question: For example I have some entity with a function:

class Entity {
protected $id;

public idBiggerThan($value) {
     return $id > $value;
}

And I want to create a filter that filters list by the result of this function (for example to be able choose only entities that have id bigger that current user).

I understand that this filter can be written without using this function, but I have much more complex functions, for which I don't want to write queries.

Thanks for your help.

UPD: I have tried something like this, but it doesn't work

$datagridMapper
    ->add('id', 'doctrine_orm_callback', array(
        'callback' => 
            function($queryBuilder, $alias, $field, $value) {
                if (!$value['value']) {
                    return;
                }

                $queryBuilder
                    ->where($alias . '. idBiggerThan(:current_user)')
                    ->setParameter('current_user', $this->getCurrentUser()->getId());

            },
        'field_type' => 'checkbox'
    ));

Answer 1

Have a look on doctrine_orm_callback in the documentation: https://sonata-project.org/bundles/doctrine-orm-admin/master/doc/reference/filter_field_definition.html

$datagridMapper->add('title')
                ->add('enabled')
                ->add('tags', null, array(), null, array('expanded' => true, 'multiple' => true))
                ->add('author')
                ->add('with_open_comments', 'doctrine_orm_callback', array(
    //                'callback'   => array($this, 'getWithOpenCommentFilter'),
                    'callback' => function($queryBuilder, $alias, $field, $value) {
                        if (!$value['value']) {
                            return;
                        }
                        $queryBuilder->leftJoin(sprintf('%s.comments', $alias), 'c');
                        $queryBuilder->andWhere('c.status = :status');
                        $queryBuilder->setParameter('status', Comment::STATUS_MODERATE);
                        return true;
                    },
                    'field_type' => 'checkbox'
                ));