adapt select moderator field in new event form

Controller/EventController.php

@@ -1,5 +1,25 @@
 <?php
 
+/*
+ * Chill is a software for social workers
+ *
+ * Copyright (C) 2014-2015, Champs Libres Cooperative SCRLFS,
+ * <http://www.champs-libres.coop>, <info@champs-libres.coop>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
 namespace Chill\EventBundle\Controller;
 
 use Chill\EventBundle\Entity\Participation;
@@ -105,7 +125,9 @@ class EventController extends Controller
     {
         $form = $this->createForm(EventType::class, $entity, array(
             'action' => $this->generateUrl('chill_event__event_create'),
-            'method' => 'POST'
+            'method' => 'POST',
+            'center' => $entity->getCenter(),
+            'role'   => new Role('CHILL_EVENT_CREATE')
         ));
 
         $form->add('submit', SubmitType::class, array('label' => 'Create'));