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fos_rest:
    disable_csrf_role: IS_AUTHENTICATED_ANONYMOUSLY
    param_fetcher_listener: true
    body_listener:          true
    format_listener:        true
    view:
        view_response_listener: force
    body_converter:
        enabled: false
        validate: true

public function getForm($car = null)
{
    return $this->createForm(new CarType(), $car);
}

/**
 * Presents the form to use to create a new car.
 *
 * @ApiDoc(
 *   resource = true,
 *   statusCodes = {
 *     200 = "Returned when successful"
 *   }
 * )
 *
 * @return FormTypeInterface
 */
public function newCarAction()
{
    return $this->getForm();
}

/**
 * Creates a new car from the submitted data.
 *
 * @ApiDoc(
 *   resource = true,
 *   input = {
 *     "class" = "AppBundle\Form\API\CarType",
 *     "name" = ""
 *   },
 *   output = "AppBundle\Entity\Car",
 *   statusCodes = {
 *     200 = "Returned when successful",
 *     400 = "Returned when the form has errors"
 *   }
 * )
 *
 * @param Request $request the request object
 *
 * @return FormTypeInterface|RouteRedirectView
 */
public function postCarAction(Request $request)
{
    $car = new Car();
    $form = $this->getForm($car);

    $form->handleRequest($request);

    if ($form->isValid()) {
        $em = $this->getDoctrine()->getManager();
        $em->persist($car);
        $em->flush();

        $view = $this->routeRedirectView('api_get_car', array('id' => $car->getId()));
    } else {
        $view = $this->view($form);
    }

    return $view;
}
    
/**
 * Car.
 *
 * @ORM\Table("car")
 * @ORM\Entity
 */
class Car
{
    /**
     * @var int
     *
     * @ORM\Column(name="id", type="integer")
     * @ORM\Id
     * @ORM\GeneratedValue(strategy="AUTO")
     */
    private $id;

    /**
     * @var int
     *
     * @ORM\Column(name="quantity_fuel", type="integer")
     */
    private $quantityFuel;

    /**
     * @var string
     *
     * @ORM\Column(name="model", type="string", length=255)
     */
    private $model;

    /**
     * @var string
     *
     * @ORM\Column(name="brand", type="string", length=255)
     */
    private $brand;

    /**
     * @var string
     *
     * @ORM\Column(name="license_plate", type="string", length=25)
     */
    private $licensePlate;

    /**
     * @ORM\ManyToOne(targetEntity="Application\Sonata\UserBundle\Entity\User", inversedBy="cars")
     * @ORM\JoinColumn(name="owner_id", referencedColumnName="id")
     **/
    private $owner;

    /**
     * @ORM\OneToMany(targetEntity="Path", mappedBy="car")
     **/
    private $paths;

    /**
     * @ORM\OneToMany(targetEntity="Cost", mappedBy="car")
     **/
    private $costs;

    /**
     * Constructor.
     */
    public function __construct()
    {
        $this->paths = new \Doctrine\Common\Collections\ArrayCollection();
        $this->costs = new \Doctrine\Common\Collections\ArrayCollection();
    }

    /**
     * Get id.
     *
     * @return int
     */
    public function getId()
    {
        return $this->id;
    }

    /**
     * Set quantityFuel.
     *
     * @param int $quantityFuel
     *
     * @return Car
     */
    public function setQuantityFuel($quantityFuel)
    {
        $this->quantityFuel = $quantityFuel;

        return $this;
    }

    /**
     * Get quantityFuel.
     *
     * @return int
     */
    public function getQuantityFuel()
    {
        return $this->quantityFuel;
    }

    /**
     * Set model.
     *
     * @param string $model
     *
     * @return Car
     */
    public function setModel($model)
    {
        $this->model = $model;

        return $this;
    }

    /**
     * Get model.
     *
     * @return string
     */
    public function getModel()
    {
        return $this->model;
    }

    /**
     * Set brand.
     *
     * @param string $brand
     *
     * @return Car
     */
    public function setBrand($brand)
    {
        $this->brand = $brand;

        return $this;
    }

    /**
     * Get brand.
     *
     * @return string
     */
    public function getBrand()
    {
        return $this->brand;
    }

    /**
     * Set licensePlate.
     *
     * @param string $licensePlate
     *
     * @return Car
     */
    public function setLicensePlate($licensePlate)
    {
        $this->licensePlate = $licensePlate;

        return $this;
    }

    /**
     * Get licensePlate.
     *
     * @return string
     */
    public function getLicensePlate()
    {
        return $this->licensePlate;
    }

    /**
     * Add paths.
     *
     * @param \AppBundle\Entity\Path $paths
     *
     * @return Car
     */
    public function addPath(\AppBundle\Entity\Path $paths)
    {
        $this->paths[] = $paths;

        return $this;
    }

    /**
     * Remove paths.
     *
     * @param \AppBundle\Entity\Path $paths
     */
    public function removePath(\AppBundle\Entity\Path $paths)
    {
        $this->paths->removeElement($paths);
    }

    /**
     * Get paths.
     *
     * @return \Doctrine\Common\Collections\Collection
     */
    public function getPaths()
    {
        return $this->paths;
    }

    /**
     * Add costs.
     *
     * @param \AppBundle\Entity\Cost $costs
     *
     * @return Car
     */
    public function addCost(\AppBundle\Entity\Cost $costs)
    {
        $this->costs[] = $costs;

        return $this;
    }

    /**
     * Remove costs.
     *
     * @param \AppBundle\Entity\Cost $costs
     */
    public function removeCost(\AppBundle\Entity\Cost $costs)
    {
        $this->costs->removeElement($costs);
    }

    /**
     * Get costs.
     *
     * @return \Doctrine\Common\Collections\Collection
     */
    public function getCosts()
    {
        return $this->costs;
    }

    /**
     * Set owner.
     *
     * @param \Application\Sonata\UserBundle\Entity\User $owner
     *
     * @return Car
     */
    public function setOwner(\Application\Sonata\UserBundle\Entity\User $owner = null)
    {
        $this->owner = $owner;

        return $this;
    }

    /**
     * Get owner.
     *
     * @return \Application\Sonata\UserBundle\Entity\User
     */
    public function getOwner()
    {
        return $this->owner;
    }
}

class CarType extends AbstractType
{
    /**
     * @param FormBuilderInterface $builder
     * @param array                $options
     */
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder
            ->add('quantityFuel')
            ->add('model')
            ->add('brand')
            ->add('licensePlate')
            ->add('owner')
        ;
    }

    /**
     * @param OptionsResolverInterface $resolver
     */
    public function setDefaultOptions(OptionsResolverInterface $resolver)
    {
        $resolver->setDefaults(array(
            'data_class' => 'AppBundle\Entity\Car',
            'csrf_protection'   => false,
        ));
    }

    /**
     * @return string
     */
    public function getName()
    {
        return 'app_api_car';
    }
}