adding remove event feature

Controller/EventController.php

@@ -30,7 +30,6 @@ use PhpOffice\PhpSpreadsheet\Writer\Ods;
 use PhpOffice\PhpSpreadsheet\Writer\Xlsx;
 use Symfony\Component\Form\Extension\Core\Type\ChoiceType;
 use Symfony\Component\HttpFoundation\StreamedResponse;
-use Sensio\Bundle\FrameworkExtraBundle\Configuration\ParamConverter;
 use Chill\EventBundle\Security\Authorization\EventVoter;
 use Chill\MainBundle\Security\Authorization\AuthorizationHelper;
 use Chill\PersonBundle\Entity\Person;
@@ -49,6 +48,7 @@ use Chill\MainBundle\Entity\Center;
 use Symfony\Bridge\Doctrine\Form\Type\EntityType;
 use Symfony\Component\Form\FormFactoryInterface;
 use Symfony\Component\Translation\TranslatorInterface;
+use Sensio\Bundle\FrameworkExtraBundle\Configuration\ParamConverter;
 
 
 /**
@@ -210,7 +210,7 @@ class EventController extends Controller
     /**
      * Finds and displays a Event entity.
      *
-     * @paramConverter("event", options={"id" = "event_id"})
+     * @ParamConverter("event", options={"id" = "event_id"})
      * @param Event $event
      * @param Request $request
      * @return \Symfony\Component\HttpFoundation\Response
@@ -604,4 +604,69 @@ class EventController extends Controller
         return $spreadsheet;
     }
     
+    /**
+     * @param $event_id
+     * @param Request $request
+     * @return \Symfony\Component\HttpFoundation\RedirectResponse|\Symfony\Component\HttpFoundation\Response
+     */
+    public function deleteAction($event_id, Request $request)
+    {
+        $em = $this->getDoctrine()->getManager();
+        $event = $em->getRepository('ChillEventBundle:Event')->findOneBy([
+            'id' => $event_id
+        ]);
+    
+        if  (! $event) {
+            throw $this->createNotFoundException('Unable to find this event.');
+        }
+        
+        /** @var array $participations */
+        $participations = $event->getParticipations();
+        
+        $form = $this->createDeleteForm($event_id);
+    
+        if ($request->getMethod() === Request::METHOD_DELETE) {
+            $form->handleRequest($request);
+    
+            if ($form->isValid()) {
+        
+                foreach ($participations as $participation) {
+                    $em->remove($participation);
+                }
+                
+                $em->remove($event);
+                $em->flush();
+    
+                $this->addFlash('success', $this->get('translator')
+                    ->trans("The event has been sucessfully removed")
+                );
+    
+                return $this->redirectToRoute('chill_main_search', [
+                    'name' => 'event_regular',
+                    'q' => '@event'
+                ]);
+            }
+        }
+        return $this->render('ChillEventBundle:Event:confirm_delete.html.twig', [
+            'event_id' => $event->getId(),
+            'delete_form' => $form->createView()
+        ]);
+    }
+    
+    /**
+     * @param $event_id
+     * @return \Symfony\Component\Form\FormInterface
+     */
+    private function createDeleteForm($event_id)
+    {
+        return $this->createFormBuilder()
+            ->setAction($this->generateUrl('chill_event__event_delete', [
+                'event_id' => $event_id
+            ]))
+            ->setMethod('DELETE')
+            ->add('submit', SubmitType::class, ['label' => 'Delete'])
+            ->getForm()
+            ;
+    }
+    
 }