There is an example in the official documentation about how to write custom provider, but it doesn't work.
My question is: what is the best way to write custom provider, especially how to write and register provider as a new service?
When I try to use this code from documentation, I get errors about type of arguments. What does mean empty argument?
Thank you.
After some investigation, the following code works:
Register provider as a service:
// src/Application/Sonata/MediaBundle/Resources/config/services.yml
parameters:
application_sonata_media.custom_class: Application\Sonata\MediaBundle\Provider\CustomProvider
services:
sonata.media.provider.custom:
class: %application_sonata_media.custom_class%
tags:
- { name: sonata.media.provider }
arguments:
- sonata.media.provider.custom
- @sonata.media.filesystem.local
- @sonata.media.cdn.server
- @sonata.media.generator.default
- @sonata.media.thumbnail.format
Custom Provider code:
// src/Application/Sonata/MediaBundle/Provider/CustomProvider.php
<?php
namespace Application\Sonata\MediaBundle\Provider;
use Sonata\MediaBundle\Model\MediaInterface;
use Sonata\MediaBundle\Provider\FileProvider;
use Symfony\Component\Form\FormBuilder;
use Symfony\Component\HttpFoundation\File\File;
/**
* Class CustomProvider
* @package Application\Sonata\MediaBundle\Provider
*/
class CustomProvider extends FileProvider
{
/**
* @param MediaInterface $media
*/
protected function doTransform(MediaInterface $media)
{
// ...
}
/**
* {@inheritdoc}
*/
public function generatePublicUrl(MediaInterface $media, $format)
{
// new logic
}
/**
* {@inheritdoc}
*/
public function postPersist(MediaInterface $media)
{
}
/**
* {@inheritdoc}
*/
public function postUpdate(MediaInterface $media)
{
}
}
Updated sonata configuration:
// app/config/sonata/sonata_media.yml
sonata_media:
...
product:
providers:
- sonata.media.provider.image
- sonata.media.provider.custom
formats:
small: { width: 40 , quality: 100}
...
And I've also setup DI extension to autoload services.yml
I made a PR to update outdated documentation.
I couldn’t get this to work until i named the service exactly as the one i was overriding (sonata.media.provider.image)
