how to use custom namer about vichuploaderbundle HOT 15 CLOSED

/**
 * @Assert\File(maxSize="20000000")
 * @Vich\UploadableField(mapping="media_file", fileNameProperty="filename")
 *
 * @var File $file
 */
public $file;

vich_uploader:
    mappings:
        media_file:
            upload_dir: %kernel.root_dir%/../uploads/media
            delete_on_remove: true
            namer: namer.media_file

services:
    namer.media_file:
        class: MySite\MyBundle\Namer\Namer
        tags:
            - { name: namer }

$loader = new Loader\YamlFileLoader($container, new FileLocator(__DIR__.'/../Resources/config'));
$loader->load('services.yml');

<?php

namespace MySite\MyBundle\Namer;

use Vich\UploaderBundle\Naming\NamerInterface;

/**
 * Namer class.
 */
class Namer implements NamerInterface
{
    /**
     * Creates a name for the file being uploaded.
     *
     * @param object $obj The object the upload is attached to.
     * @param string $field The name of the uploadable field to generate a name for.
     * @return string The file name.
     */
    function name($obj, $field)
    {
        $file = $obj->file;
        $extension = $file->getExtension();

        return uniqid('', true).'.'.$extension;
    }
}

/**
 * @Assert\File(
 *     maxSize="1M",
 *     mimeTypes={"image/png", "image/jpeg", "image/pjpeg"}
 * )
 * @Vich\UploadableField(mapping="product_image", fileNameProperty="imageName")
 *
 * @var File $image
 */
protected $image; // WRONG! this attribute could not be accessed from non-child classes

/**
 * Returns the extension of the file.
 *
 * \SplFileInfo::getExtension() is not available before PHP 5.3.6
 *
 * @return string The extension
 *
 * @api
 */
public function getExtension()
{
    return pathinfo($this->getBasename(), PATHINFO_EXTENSION);
}

function name($obj, $field)
{
    $file = $obj->image;
    $extension = $file->guessExtension();

    return uniqid('', true).'.'.$extension;
}

Notice: Undefined property: Acme\DemoBundle\Entity\Product::$file in /home/sfprojects/vichuploader/src/Acme/DemoBundle/Namer/Namer.php line 21

$file = $obj->file;

Acme\DemoBundle\Entity\Product Object
(
    [id:protected] => 
    [image:protected] => Symfony\Component\HttpFoundation\File\UploadedFile Object
        (
            [test:Symfony\Component\HttpFoundation\File\UploadedFile:private] => 
            [originalName:Symfony\Component\HttpFoundation\File\UploadedFile:private] => 7794932098_10a55dc4ea_b.jpg
            [mimeType:Symfony\Component\HttpFoundation\File\UploadedFile:private] => image/jpeg
            [size:Symfony\Component\HttpFoundation\File\UploadedFile:private] => 269071
            [error:Symfony\Component\HttpFoundation\File\UploadedFile:private] => 0
            [pathName:SplFileInfo:private] => /tmp/phpNRJRuk
            [fileName:SplFileInfo:private] => phpNRJRuk
        )

    [imageName:protected] => pop-rocker
)

Fatal error: Cannot access protected property Acme\DemoBundle\Entity\Product::$image in /home/sfprojects/vichuploader/src/Acme/DemoBundle/Namer/Namer.php on line 21

use Vich\UploaderBundle\Naming\NamerInterface;
use Vich\UploaderBundle\Mapping\PropertyMapping;

class FileNamer implements NamerInterface
{
    /**
     * Creates a name for the file being uploaded
     *
     * @param object $obj The object the upload is attached to
     * @param string $field The name of the uploadable field to generate a name for
     *
     * @return string The file name
     */
    public function name($object, PropertyMapping $mapping)
    {
        $file = $object->file;
        $extension = $file->getExtension();

        return uniqid('', true).'.'.$extension;
    }

    rc.user_photo.namer:
        class: RC\RosterBundle\File\UserPhotoNamer

vich_uploader:
    db_driver: orm
    mappings:
        user_photo:
            uri_prefix: /uploads/user_photos
            upload_destination: %kernel.root_dir%/../web/uploads/user_photos
            namer: 
                service: vich_uploader.namer_origname
            inject_on_load: false
            delete_on_remove: false

<?php

namespace RC\RosterBundle\File;

use Vich\UploaderBundle\Mapping\PropertyMapping;
use Vich\UploaderBundle\Naming\NamerInterface;

class UserPhotoNamer implements NamerInterface
{
    /**
     * Creates a name for the file being uploaded.
     *
     * @param  object          $obj     The object the upload is attached to.
     * @param  PropertyMapping $mapping The mapping to use to manipulate the given object.
     * @return string          The file name.
     */
    public function name($user, PropertyMapping $mapping)
    {
        $name = '';

        $name .= $user->getClient()->getId().'_';

        $name .= $user->getId().'_';

        $name .= date('YmdHi');

        $name .= '.'.$user->getPhoto()->guessExtension();

        return $name;
    }
}