public function statisticsAction()
{
$months = Objects::getMonthLongNames();
$y = $this->params()->fromRoute('year', null);
$m = $this->params()->fromRoute('month', null);
$StatisticsForm = new StatisticsForm($months);
$formTemplate = 'form-templates/search-statistics';
$viewModelForm = new ViewModel();
$requestDate = null;
if (!is_null($y) && !is_null($y)) {
$requestDate = $y . '_' . $m;
}
$viewModelForm->setVariables(['form' => $StatisticsForm, 'requestDate' => $requestDate]);
$viewModelForm->setTemplate($formTemplate);
$router = $this->getEvent()->getRouter();
$ajaxSourceUrl = $router->assemble(['controller' => 'apartment', 'action' => 'get-occupancy-statistics-json'], ['name' => 'occupancy_statistics']);
$viewModel = new ViewModel(['ajaxSourceUrl' => $ajaxSourceUrl]);
$viewModel->addChild($viewModelForm, 'formOutput');
$viewModel->setTemplate('apartment/occupancy-statistics/index');
return $viewModel;
}