<?php

namespace Sortable\Fixture\Transport;

use Doctrine\ORM\Mapping as ORM;

/**
 * @ORM\Entity
 */
class Car extends Vehicle
{
    /**
     * @ORM\ManyToOne(targetEntity="Car", inversedBy="children")
     * @ORM\JoinColumn(name="parent_id", referencedColumnName="id", onDelete="CASCADE")
     */
    private $parent;

    /**
     * @ORM\OneToMany(targetEntity="Car", mappedBy="parent")
     */
    private $children;

    public function setParent($parent = null)
    {
        $this->parent = $parent;
    }

    public function getChildren()
    {
        return $this->children;
    }

    public function getParent()
    {
        return $this->parent;
    }
}