Feature: [export][activity] Add filter and aggregator by users

(participating to the activity)

src/Bundle/ChillActivityBundle/Export/Aggregator/ActivityUsersAggregator.php

@@ -0,0 +1,86 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * Chill is a software for social workers
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ */
+
+namespace Chill\ActivityBundle\Export\Aggregator;
+
+use Chill\ActivityBundle\Export\Declarations;
+use Chill\MainBundle\Export\AggregatorInterface;
+use Chill\MainBundle\Repository\UserRepositoryInterface;
+use Chill\MainBundle\Templating\Entity\UserRender;
+use Doctrine\ORM\QueryBuilder;
+use Symfony\Component\Form\FormBuilderInterface;
+use function in_array;
+
+class ActivityUsersAggregator implements AggregatorInterface
+{
+    private UserRender $userRender;
+
+    private UserRepositoryInterface $userRepository;
+
+    public function __construct(UserRepositoryInterface $userRepository, UserRender $userRender)
+    {
+        $this->userRepository = $userRepository;
+        $this->userRender = $userRender;
+    }
+
+    public function addRole(): ?string
+    {
+        return null;
+    }
+
+    public function alterQuery(QueryBuilder $qb, $data)
+    {
+        if (!in_array('actusers', $qb->getAllAliases(), true)) {
+            $qb->leftJoin('activity.users', 'actusers');
+        }
+
+        $qb
+            ->addSelect('actusers.id AS activity_users_aggregator')
+            ->addGroupBy('activity_users_aggregator');
+    }
+
+    public function applyOn(): string
+    {
+        return Declarations::ACTIVITY;
+    }
+
+    public function buildForm(FormBuilderInterface $builder)
+    {
+        // nothing to add on the form
+    }
+
+    public function getLabels($key, array $values, $data)
+    {
+        return function ($value) {
+            if ('_header' === $value) {
+                return 'Activity users';
+            }
+
+            if (null === $value) {
+                return '';
+            }
+
+            $u = $this->userRepository->find($value);
+
+            return $this->userRender->renderString($u, []);
+        };
+    }
+
+    public function getQueryKeys($data)
+    {
+        return ['activity_users_aggregator'];
+    }
+
+    public function getTitle()
+    {
+        return 'Aggregate by activity users';
+    }
+}