public function deleteChild($idParent, FilterRequest $filters, $idChild, $relation)
    {
        $idParent = $this->getRealId($idParent);
        $idChild = $this->getRealId($idChild);
        
        $resource = $this->repository->deleteChild($idParent, $relation, $idChild);
        
        if ($resource == null) {
            // return $this->notFound();
        }
        
        return $this->success();
    }