public function graph()
{
$data = [];
$data['data_for_graph']['videos'] = Statistic::getDataForGraph('Video');
$data['data_for_graph']['users'] = Statistic::getDataForGraph('User', 'reg_timestamp');
$data['data_for_graph']['videos_year'] = Statistic::getDataForGraph('Video', 'timestamp', 3600 * 24 * 30 * 12, 3600 * 24 * 30, "Y-m");
$data['data_for_graph']['users_year'] = Statistic::getDataForGraph('User', 'reg_timestamp', 3600 * 24 * 30 * 12, 3600 * 24 * 30, "Y-m");
return new ViewResponse('admin/statistic/graph', $data);
}