add some method for resolving scope in twig

src/Bundle/ChillPersonBundle/DataFixtures/Helper/RandomPersonHelperTrait.php

@@ -0,0 +1,35 @@
+<?php
+
+namespace Chill\PersonBundle\DataFixtures\Helper;
+
+use Chill\PersonBundle\Entity\Person;
+use Doctrine\ORM\EntityManagerInterface;
+
+trait RandomPersonHelperTrait
+{
+    private ?int $nbOfPersons = null;
+
+    protected function getRandomPerson(EntityManagerInterface $em): Person
+    {
+        $qb = $em->createQueryBuilder();
+        $qb
+            ->from(Person::class, 'p')
+            ;
+
+        if (null === $this->nbOfPersons) {
+            $this->nbOfPersons = $qb
+                ->select('COUNT(p)')
+                ->getQuery()
+                ->getSingleScalarResult()
+                ;
+        }
+
+        return $qb
+            ->select('p')
+            ->setMaxResults(1)
+            ->setFirstResult(\random_int(0, $this->nbOfPersons))
+            ->getQuery()
+            ->getSingleResult()
+            ;
+    }
+}