TeamAdmin.php

<?php

namespace Myself\TeamBundle\Admin;

use Sonata\AdminBundle\Admin\Admin;
use Sonata\AdminBundle\Datagrid\ListMapper;
use Sonata\AdminBundle\Datagrid\DatagridMapper;
use Sonata\AdminBundle\Validator\ErrorElement;
use Sonata\AdminBundle\Form\FormMapper;
use Sonata\AdminBundle\Type\ModelTypeList;

class TeamAdmin extends Admin {
    protected function configureFormFields(FormMapper $formMapper) {
        $formMapper
            ->add('name', null, array('label' => 'Name'))
            ->add('abbreviation')
            ->add('organization', 'sonata_type_model', array(), array());
    }

    protected function configureDatagridFilters(DatagridMapper $datagridMapper) {
        $datagridMapper
            ->add('name')
            ->add('abbreviation');
    }

    protected function configureListFields(ListMapper $listMapper) {
        $listMapper
            ->addIdentifier('name')
            ->add('slug')
            ->add('abbreviation')
            ->add('gender');
    }

    public function validate(ErrorElement $errorElement, $object) {
        $errorElement
            ->with('name')
            ->assertMaxLength(array('limit' => 32))
            ->end();
    }
}


?>


<?php

namespace Myself\TeamBundle\Entity;

use Doctrine\ORM\Mapping as ORM;
use Symfony\Component\Validator\Constraints as Assert;
use Gedmo\Mapping\Annotation as Gedmo;
use Symfony\Bridge\Doctrine\Validator\Constraints\UniqueEntity;

/**
 * Teamsystems\TeamBundle\Entity\Team
 *
 * @ORM\Table(name="team")
 * @ORM\Entity(repositoryClass="Myself\TeamBundle\Entity\TeamRepository")
 * @UniqueEntity({"slug", "organization"})
 */
class Team
{

private $name;

/**
     * @ORM\ManyToOne(targetEntity="Myself\InstallationBundle\Entity\Organization", inversedBy="teams")
     * @ORM\JoinColumn(name="organization_id", referencedColumnName="id")
     */
    protected $organization;
}

?>

<?php

namespace Myself\InstallationBundle\Entity;


use Doctrine\ORM\Mapping as ORM;
use Doctrine\ORM\EntityManager;
use Doctrine\ORM\EntityRepository;
use Doctrine\Common\Collections\ArrayCollection;
use Myself\UserBundle\Entity\User;

/**
 * Myself\InstallationBundle\Entity\Organization
 */

/**
 * @ORM\Entity
 * @ORM\Table(name="organization")
 */
class Organization {

    /**
     * @ORM\Column(type="string", length=100, nullable=true)
     */
    private $name;

    /**
     * @ORM\OneToMany(targetEntity="Myself\TeamBundle\Entity\Team", mappedBy="organization")
     *
     */
    protected $teams;

    public function __toString() {
            return $this->getName();
        }
}