first impl for api

src/Bundle/ChillPersonBundle/Controller/AccompanyingCourseApiController.php

@@ -0,0 +1,48 @@
+<?php
+
+namespace Chill\PersonBundle\Controller;
+
+use Chill\MainBundle\CRUD\Controller\ApiController;
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpFoundation\Response;
+use Symfony\Component\Routing\Annotation\Route;
+use Chill\PersonBundle\Entity\AccompanyingPeriod;
+use Symfony\Component\HttpFoundation\Exception\BadRequestException;
+
+
+class AccompanyingCourseApiController extends ApiController
+{
+    public function participationApi($accompanyingPeriodId, Request $request)
+    {
+        /** @var AccompanyingPeriod $accompanyingPeriod */ 
+        $accompanyingPeriod = $this->getEntity($accompanyingPeriodId);
+        $person = $this->serializer->deserialize($request->getContent(), Person::class, $_format, []);
+
+        if (NULL === $person) {
+            throw new BadRequestException('person id not found');
+        }
+
+        // TODO add acl
+        switch ($request->getMethod()) {
+            case Request::METHOD_POST:
+                $participation = $accompanyingCours->addPerson($person);
+                break;
+            case Request::METHOD_DELETE:
+                $participation = $accompanyingCours->removePerson($person);
+                break;
+            default:
+                throw new BadRequestException("This method is not supported");
+        }
+
+        $errors = $this->validator->validate($accompanyingCourse);
+
+        if ($errors->count() > 0) {
+            // only format accepted
+            return $this->json($errors);
+        }
+
+        $this->getDoctrine()->getManager()->flush();
+
+        return $this->json($participation);
+    } 
+}