Fixed: [export] improve memory footprint for filter by Geographical Unit

src/Bundle/ChillMainBundle/Entity/GeographicalUnit/SimpleGeographicalUnitDTO.php

@@ -0,0 +1,52 @@
+<?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\MainBundle\Entity\GeographicalUnit;
+
+/**
+ * Simple GeographialUnit Data Transfer Object.
+ *
+ * This allow to get access to id, unitName, unitRefId, and layer's id
+ */
+class SimpleGeographicalUnitDTO
+{
+    /**
+     * @readonly
+     * @psalm-readonly
+     */
+    public int $id;
+
+    /**
+     * @readonly
+     * @psalm-readonly
+     */
+    public int $layerId;
+
+    /**
+     * @readonly
+     * @psalm-readonly
+     */
+    public string $unitName;
+
+    /**
+     * @readonly
+     * @psalm-readonly
+     */
+    public string $unitRefId;
+
+    public function __construct(int $id, string $unitName, string $unitRefId, int $layerId)
+    {
+        $this->id = $id;
+        $this->unitName = $unitName;
+        $this->unitRefId = $unitRefId;
+        $this->layerId = $layerId;
+    }
+}