I tried to use the following setup in my Symfony2 project:

• VichUploader Bundle to handle file uploads
• KnpGaufrette Bundle to be used by VichUploader as storage adapter

Problem: As soon as I try to use the Gaufrette "doctrine_dbal" storage adapter, I get the following error:

[Symfony\Component\DependencyInjection\Exception\ServiceCircularReferenceException]                                                                                                                                                                                                                 
Circular reference detected for service "doctrine.dbal.default_connection", path: "doctrine.orm.default_entity_manager -> doctrine.dbal.default_connection -> vich_uploader.upload_handler -> vich_uploader.storage.gaufrette -> knp_gaufrette.filesystem_map -> gaufrette.storage_fs_filesystem".  

      

        
        
        
      

    

The problem comes up as soon as Symfony tries to check the configuration, eg. on the

app/console cache:clear

      

        
        
        
      

    

How can I solve this problem?

My setup

My project setup is the default setup symfony/framework-standard-edition

with a version 2.5.*

without AcmeDemo package.

I just added Bundles via Composer:

composer require knplabs/knp-gaufrette-bundle vich/uploader-bundle

      

        
        
        
      

    

... added them to AppKernel registerBundles()

:

//...
$bundles = array(
        new Symfony\Bundle\FrameworkBundle\FrameworkBundle(),
        new Symfony\Bundle\SecurityBundle\SecurityBundle(),
        new Symfony\Bundle\TwigBundle\TwigBundle(),
        new Symfony\Bundle\MonologBundle\MonologBundle(),
        new Symfony\Bundle\SwiftmailerBundle\SwiftmailerBundle(),
        new Symfony\Bundle\AsseticBundle\AsseticBundle(),
        new Doctrine\Bundle\DoctrineBundle\DoctrineBundle(),
        new Sensio\Bundle\FrameworkExtraBundle\SensioFrameworkExtraBundle(),
        new AppBundle\AppBundle(),
        new Vich\UploaderBundle\VichUploaderBundle(), //NEW 
        new Knp\Bundle\GaufretteBundle\KnpGaufretteBundle(), //NEW
    );
//...

      

        
        
        
      

    

... and added the following config to config.yml

, which is based on the VichUploader docs with Gaufrette and KnpGaufrette with Doctrine DBAL :

# ...
knp_gaufrette:
    stream_wrapper: ~

    adapters:
        storage_adapter:
            doctrine_dbal:
                connection_name: default
                table: data_storage
                columns:
                    key: id
                    content: file
                    mtime: mtime
                    checksum: checksum

    filesystems:
        storage_fs:
            adapter:    storage_adapter



vich_uploader:
    db_driver: orm
    storage:   gaufrette

    mappings:
        storage:
            uri_prefix:         /images/products
            upload_destination: storage_fs