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copied!<p>Finally I got to the solution. I'm sure there are some others (like using event listeners, for example, that seems to be simpler), but right now it's the best I could find (it works, and that's what matters).</p> <p>I was trying to override the <code>createAction()</code> based on examples that I found in another forum thread, but I was getting two records in the table instead of one only. The most important thing was overriding the WHOLE action method and put the custom code in it.</p> <p><strong>Controller</strong>:</p> <pre><code><?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, )); } } </code></pre> <p><strong>Service for the controller</strong>:</p> <pre><code>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" ] </code></pre> <p>I took the solution from the following sites: </p> <ul> <li><a href="https://groups.google.com/forum/?fromgroups#!msg/sonata-users/xs3cNFD7oO4/pJYtqHgULY8J%5B1-25%5D" rel="noreferrer">Sonata-Users</a>,</li> <li><a href="http://forum.symfony-project.org/viewtopic.php?f=23&t=44695&p=137924#p137924" rel="noreferrer">Symfony framework forums</a>,</li> </ul> <p>(And the Sonata Project documentation)</p>

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