exports: DurationAggregator with approximative(*) date interval

(*) for more precise, we need dql interval function

src/Bundle/ChillPersonBundle/Export/Aggregator/AccompanyingCourseAggregators/DurationAggregator.php

@@ -10,6 +10,7 @@ use Doctrine\ORM\QueryBuilder;
 use Symfony\Bridge\Doctrine\Form\Type\EntityType;
 use Symfony\Component\Form\Extension\Core\Type\ChoiceType;
 use Symfony\Component\Form\FormBuilderInterface;
+use Symfony\Contracts\Translation\TranslatorInterface;
 
 /**
  * Les regroupements seront un nombre de mois, arrondi à l'unité la plus proche (donc
@@ -22,23 +23,33 @@ use Symfony\Component\Form\FormBuilderInterface;
  */
 class DurationAggregator implements AggregatorInterface
 {
+    private TranslatorInterface $translator;
+    
+    public function __construct(TranslatorInterface $translator)
+    {
+        $this->translator = $translator;
+    }
 
     /**
      * @inheritDoc
      */
     public function getLabels($key, array $values, $data)
     {
-        dump($key, $values, $data);
-
         return function ($value) use ($data): string {
+
             if ($value === '_header') {
-                return 'Duration';
+                return $this->translator->trans('Rounded month duration');
             }
+
             if ($value === null) {
-                return 'current'; // when closingDate is null
+                return $this->translator->trans('current duration'); // when closingDate is null
             }
-            return $value;
-                //sprintf("%02d", $value) . ' days';
+
+            if ($value === 0) {
+                return $this->translator->trans("duration 0 month");
+            }
+
+            return ''. $value . $this->translator->trans(' months');
         };
     }
 
@@ -81,7 +92,10 @@ class DurationAggregator implements AggregatorInterface
     {
         $qb
             // OUI
-            ->addSelect('(acp.closingDate - acp.openingDate) AS duration_aggregator')
+            ->addSelect('
+                (acp.closingDate - acp.openingDate +15) *12/365 
+                AS duration_aggregator'
+            )
             //->addSelect('DATE_DIFF(acp.closingDate, acp.openingDate) AS duration_aggregator')
             //->addSelect('EXTRACT(month FROM acp.openingDate) AS duration_aggregator')
             //->addSelect("DATE_SUB(acp.openingDate, 6, 'day') AS duration_aggregator")