/**
  * @return Group
  */
 protected function getGroup()
 {
     $groupId = $this->request->get('id', null);
     if (!$groupId) {
         $groupId = $this->requestParams->get('currentGroup', null);
     }
     $group = $this->groupRepository->findOne($groupId);
     return $group;
 }
 /**
  * {@inheritdoc}
  */
 public function getFormOptions()
 {
     return ['groups' => $this->groupRepository->findAll()];
 }