Récuperer des informations de ma base de données

public function commandValidationAction(Request $request, Command $command = null)
    {
        if (!$command instanceof Command){
            throw new NotFoundHttpException('Command not found');

        /*Grace aux repositories je dis a mon code de se positionner à l'endroit role daf et role codir*/ 
        $em = $this->getDoctrine()->getManager();
        $arrayDaf = $em->getRepository(User::class)->findBy(array('roles'=>'ROLE_DAF'));
        $arrayCodir = $em->getRepository(User::class)->findBy(array('roles'=>'ROLE_CODIR'));
       

        $prices = $this->getTotalPriceAndUnitPrice($command->getTools());


        $comment = new CommandComment();

        $form = $this->createForm(CommandCommentType::class, $comment);
        $form->handleRequest($request);

        if ($form->isSubmitted() && $form->isValid()) {
            $comment->setCommand($command);
            $comment->setUser($this->getUser());

            $em->persist($comment);
            $em->flush();
            
            
            if ($prices[0] > 5000 || $prices[1]) {
                foreach($arrayDaf as $userdaf){
                    $this->sendUserMailAction($command, $userdaf->getEmail()/*Ici je lui dis de prendre l'email du role daf*/ );
                } 
                $command->setStatus(CommandStatusType::VALIDATION_DAF);
            } elseif ($prices[1]) {
                foreach($arrayCodir as $usercodir){
                    $this->sendUserMailAction($command, $usercodir->getEmail()/*Ici je lui dis de prendre l'email du role codir*/);
                }
                $command->setStatus(CommandStatusType::VALIDATION_EXCOM);
            }
            } else {
                $this->sendProviderMailAction($command);
                $command->setStatus(CommandStatusType::SEND);
                $this->sendTechValidationNotificationMailAction($command);
            }

            $em->persist($command);
            $em->flush();

            $notif = new CommandUpdate();
            $notif->setUser($this->getUser());
            $notif->setCommand($command);
            $notif->setType(4);

            $em->persist($notif);
            $em->flush();

            $title = "Commande validée";
            $text = $this->getUser()->getDisplayName() . " : Vient de **valider** la commande **".$command->getReference().'**';
            $uri = $this->generateUrl('command_show', array('id' => $command->getId()), UrlGeneratorInterface::ABSOLUTE_URL);
            $this->sendToMicrosoftTeams($title, $text, $uri);

            return $this->redirectToRoute('command_show', array('id' => $command->getId()));
        }

        return $this->render('@Tools/Commands/validationCommand.html.twig', array(
            'command' => $command,
            'form' => $form->createView(),
        ));

    }