Nullable value in command file - symfony

Question

I'm actually working on a symfony project where i have to get into the DB all the taxis with some informations about them and make them write in a CSV file.
For this, i've create a CiblageCommand File :
<?php
namespace AppBundle\Command;
use AppBundle\Entity\Taxi;
use AppBundle\Entity\StatutTaxi;
use Symfony\Component\Console\Command\Command;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Output\OutputInterface;
use Doctrine\ORM\EntityManagerInterface;
use Symfony\Component\Console\Style\SymfonyStyle;
use Symfony\Bundle\FrameworkBundle\Command\ContainerAwareCommand;
class CiblageCommand extends ContainerAwareCommand
{
private $em;
public function __construct(EntityManagerInterface $em)
{
parent::__construct();
$this->em = $em;
}
protected function configure()
{
$this
//the short description shown while running "php bin/console list"
->setDescription('cible les taxis')
//commande
->setname('ciblage')//php bin/console ciblage
//the full command descriptionn shown when running the command with
//the "--help" option
->setHelp('Cette commande permet de cibler les taxis valides présents'
.' dans la BDD et de leur générer un PDF conforme.')
;
}
protected function execute(InputInterface $input, OutputInterface $output)
{
$io = new SymfonyStyle($input, $output);
$io->title("Lancement de la génération");
$io->title("\nListage des taxis");
$this->create();/*
$io->title("\nCiblage terminé");
$io->title("\nGénération des courriers");
$this->generation();
*/
$io->success("\nGénération terminée");
}
protected function create()
{
$repository_taxi = $this->em->getRepository('AppBundle:Taxi');
$listTaxi = $repository_taxi->findAll();
$doctrine = $this->getContainer()->get('doctrine');
$em = $doctrine->getEntityManager();
$handle = fopen('CSVTaxi', 'w+');
fputcsv($handle, ['IDENTIFIANT', 'RAISON SOCIALE', 'STATUT', 'ETAT'], ';');
foreach ($listTaxi as $taxi)
{
if($taxi == null){
$listTaxi[$taxi] = "NULL" ;
}
fputcsv(
$handle,
[
$taxi->getNumAm(),
$taxi->getRaisonSociale(),
$taxi->getStatutTaxi()->getLibelleStatut(),
$taxi->getEtatTaxi()->getLibelleEtat()],
';'
);
}
fclose($handle);
echo("nbr taxi : ".count($listTaxi)."\n");
}
}
However, when i tried to do a "getStatutTaxi()" the value return is null and i cant write on the file despite the if before.
there is the error my terminal gave me
[apl4e04#l11750300app2dev 10:23:23] [~/web/html/scot] $ php bin/console ciblage
Lancement de la génération
==========================
Listage des taxis
==================
10:17:16 ERROR [console] Error thrown while running command "ciblage". Message: "Call to a
member function getLibelleStatut() on null" ["exception" => Error { …},"command" =>
"ciblage","message" => "Call to a member function getLibelleStatut() on null"]
PHP Fatal error: Uncaught Symfony\Component\Debug\Exception\FatalThrowableError: Call to a member
function getLibelleStatut() on null in
/app/apl4e04/web/html/scot/src/AppBundle/Command/CiblageCommand.php:74
Stack trace:
#0 /app/apl4e04/web/html/scot/src/AppBundle/Command/CiblageCommand.php(44):
AppBundle\Command\CiblageCommand->create()#1/app/apl4e04/web/html/scot/vendor/
symfony/symfony/src/Symfony/Component/Console/Command/Command.php(255):
AppBundle\Command\CiblageCommand->execute(Object(Symfony\Component\Console\Input\ArgvInput),
Object(Symfony\Component\Console\Output\ConsoleOutput))
#2 /app/apl4e04/web/html/scot/vendor/symfony/symfony/src/Symfony/
Component/Console/Application.php(987): Symfony\Component\Console\Command\Command-
>run(Object(Symfony\Component\Console\Input\ArgvInput),
Object(Symfony\Component\Console\Output\ConsoleOutput))
#3/app/apl4e04/web/html/scot/vendor/symfony/symfony/
src/Symfony/Bundle/FrameworkBundle/Console/Application
.php(86): Symfony\Component\Console\Application->doRunCommand(Object(AppBundl in
/app/apl4e04/web/html/scot/src/AppBundle/Command/CiblageCommand.php on line 74
How can i fix this and make this work ?
Thanks in advance for your help.
Cordially,

Answer 1

We can fix this by checking the value instance before adding to the csv file.
$statusLibelleStatut = $taxi->getStatutTaxi() instance of StatutTaxi ? $taxi->getStatutTaxi()->getLibelleStatut() : '';
$etatLibelleEtat = $taxi->getEtatTaxi() instance of LibelleEtat ? $taxi->getEtatTaxi()->getLibelleEtat() : '';
fputcsv(
$handle,
[
$taxi->getNumAm(),
$taxi->getRaisonSociale(),
$statusLibelleStatut,
$etatLibelleEtat],
';'
);

Answer 2

UPDATE : i just add a ternary function at my 'getLibelleStatut()' who resolve the probleme.
protected function create()
{
$repository_taxi = $this->em->getRepository('AppBundle:Taxi');
$listTaxi = $repository_taxi->findAll();
//$doctrine = $this->getContainer()->get('doctrine');
//$em = $doctrine->getEntityManager();
$handle = fopen('CSVTaxi.csv', 'w+');
fputcsv($handle, [' IDENTIFIANT', 'RAISON SOCIALE', 'STATUT', 'ETAT'], ';');
foreach ($listTaxi as $taxi)
{
fputcsv(
$handle,
[
$taxi->getNumAm(),
$taxi->getRaisonSociale(),
($taxi->getStatutTaxi()==null)?"":$taxi->getStatutTaxi()->getLibelleStatut(),
$taxi->getEtatTaxi()->getLibelleEtat()],
';'
);
}
fclose($handle);
echo("nbr taxi : ".count($listTaxi)."\n");
}