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Symfony2: override createAction () in SonataAdmin

In recent days, I have been looking like crazy, trying to figure out (without success) how to redefine the SonataAdmin action to capture the session username and save it in the foreign key field.

AttachmentAdminController Class:

<?php

namespace Application\Sonata\UserBundle\Controller;

use Sonata\AdminBundle\Controller\CRUDController as Controller;
#use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use FOS\UserBundle\Entity\User;
use Symfony\Component\Security\Core\SecurityContextInterface;
use Symfony\Bridge\Monolog\Logger;
use Mercury\CargoRecognitionBundle\Entity\Attachment;

class AttachmentAdminController extends Controller
{
    /**
     * (non-PHPdoc)
     * @see Sonata\AdminBundle\Controller.CRUDController::createAction()
     */
    public function createAction()
    {
        $result = parent::createAction();

        if ($this->get('request')->getMethod() == 'POST')
        {
            $flash = $this->get('session')->getFlash('sonata_flash_success');

            if (!empty($flash) && $flash == 'flash_create_success')
            {
                #$userManager = $this->container->get('fos_user.user_manager');
                #$user = $this->container->get('context.user');
                #$userManager = $session->get('username');
                $user = $this->container->get('security.context')->getToken()->getUser()->getUsername();

                $attachment = new Attachment();
                $attachment->setPath('/tmp/image.jpg');
                $attachment->setNotes('nothing interesting to say');
                $attachment->getSystemUser($user);

                $em = $this->getDoctrine()->getEntityManager();
                $em->persist($product);
                $em->flush();
            }
        }

        return $result;
    }
}

:

mercury.cargo_recognition.admin.attachment:
    class: Mercury\CargoRecognitionBundle\Admin\AttachmentAdmin
    tags:
        - { name: sonata.admin, manager_type: orm, group: General, label: Attachments }
    arguments: [ null, Mercury\CargoRecognitionBundle\Entity\Attachment, "SonataAdminBundle:CRUD" ]

It seems to me that actionController () is ignored by the SonataAdminBundle (and possibly the entire class file), because there are no error messages at all, but I don’t know why. In fact, I'm not sure if I get the username from the session.

I really need a good tutorial about this, but it looks like any information I get about it is outdated in some aspect. By the way, I'm using Symfony 2.0.16

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createAction() , , . - WHOLE .

<?php

namespace Mercury\CargoRecognitionBundle\Controller;

use Symfony\Component\Security\Core\SecurityContextInterface;
use Symfony\Bridge\Monolog\Logger;
use Sonata\AdminBundle\Controller\CRUDController as Controller;
use Application\Sonata\UserBundle\Entity\User;
use Mercury\CargoRecognitionBundle\Entity\Attachment;
use Mercury\CargoRecognitionBundle\Entity\SystemUser;
use Mercury\CargoRecognitionBundle\Repository\SystemUserRepository;

class AttachmentAdminController extends Controller
{
    /**
     * Set the system user ID
     */
    private function updateFields($object)
    {
        $userName = $this->container->get('security.context')
                        ->getToken()
                        ->getUser()
                        ->getUsername();

        $user = $this->getDoctrine()
                    ->getRepository('ApplicationSonataUserBundle:User')
                    ->findOneByUsername($userName);

        $object->setSystemUser($user);

        return $object;
    }

    /**
     * (non-PHPdoc)
     * @see Sonata\AdminBundle\Controller.CRUDController::createAction()
     */
    public function createAction()
    {
        // the key used to lookup the template
        $templateKey = 'edit';

        if (false === $this->admin->isGranted('CREATE')) {
            throw new AccessDeniedException();
        }

        $object = $this->admin->getNewInstance();

        $object = $this->updateFields($object);

        // custom method
        $this->admin->setSubject($object);

        $form = $this->admin->getForm();
        $form->setData($object);

        if ($this->get('request')->getMethod() == 'POST') {
            $form->bindRequest($this->get('request'));

            $isFormValid = $form->isValid();

            // persist if the form was valid and if in preview mode the preview was approved
            if ($isFormValid && (!$this->isInPreviewMode() || $this->isPreviewApproved())) {
                $this->admin->create($object);

                if ($this->isXmlHttpRequest()) {
                    return $this->renderJson(array(
                        'result' => 'ok',
                        'objectId' => $this->admin->getNormalizedIdentifier($object)
                    ));
                }

                $this->get('session')->setFlash('sonata_flash_success','flash_create_success');
                // redirect to edit mode
                return $this->redirectTo($object);
            }

            // show an error message if the form failed validation
            if (!$isFormValid) {
                $this->get('session')->setFlash('sonata_flash_error', 'flash_create_error');
            } elseif ($this->isPreviewRequested()) {
                // pick the preview template if the form was valid and preview was requested
                $templateKey = 'preview';
            }
        }

        $view = $form->createView();

        // set the theme for the current Admin Form
        $this->get('twig')->getExtension('form')->setTheme($view, $this->admin->getFormTheme());

        return $this->render($this->admin->getTemplate($templateKey), array(
            'action' => 'create',
            'form'   => $view,
            'object' => $object,
        ));
    }
}

:

mercury.cargo_recognition.admin.attachment:
    class: Mercury\CargoRecognitionBundle\Admin\AttachmentAdmin
    tags:
        - { name: sonata.admin, manager_type: orm, group: General, label: Attachments }
    arguments: [ null, Mercury\CargoRecognitionBundle\Entity\Attachment, "MercuryCargoRecognitionBundle:AttachmentAdmin" ]

:

( Sonata)

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