/**
  * {@inheritdoc}
  */
 public function jsonSerialize()
 {
     $parent = $this->organization->getParent();
     $daughters = $this->repository->getDaughters($this->organization);
     $daughtersNames = array_map(function (Organization $daughter) {
         return $daughter->getName();
     }, $daughters);
     return ['parent' => is_null($parent) ? null : $parent->getName(), 'daughters' => $daughtersNames];
 }