issues/27: filter DTO, strip id from payloads, lifecycle updateAt

src/Entity/Behavior/UpdateTimestampTrait.php

@@ -0,0 +1,24 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Entity\Behavior;
+
+use Doctrine\ORM\Mapping as ORM;
+
+trait UpdateTimestampTrait
+{
+    #[ORM\PrePersist]
+    public function setInitialUpdateAt(): void
+    {
+        if ($this->updateAt === null) {
+            $this->updateAt = new \DateTime();
+        }
+    }
+
+    #[ORM\PreUpdate]
+    public function refreshUpdateAt(): void
+    {
+        $this->updateAt = new \DateTime();
+    }
+}