Basic implementation event signup

modules/event-participants/Requests/class-anwesenheitrequest.php

@@ -0,0 +1,23 @@
+<?php
+namespace Bdp\Modules\EventParticipants\Reqeust;
+
+
+use Bdp\Libs\CommonModel;
+use Bdp\Modules\EventParticipants\Models\Event;
+use Carbon\Carbon;
+
+class AnwesenheitRequest {
+	public static function send(CommonModel $participant) {
+		$anreise = \DateTime::createFromFormat('Y-m-d', $participant->anreise);
+		$abreise = \DateTime::createFromFormat('Y-m-d', $participant->abreise);
+
+		$cmpd = date_diff($anreise, $abreise);
+		$days = $cmpd->d;
+
+		if ($days== 0) {
+			return 1;
+		}
+
+		return $days;
+	}
+}