public function actionDownloadChart($id, $location)
{
$question = $this->loadModel($id, $location);
$chartFileName = QuestionToChartAdapter::getChartImg($question);
if ($chartFileName) {
Yii::app()->request->sendFile("график", file_get_contents($chartFileName), 'image/png');
} else {
throw new CHttpException(404, "График не найден");
}
}
