public function insertWarning($message = null)
{
$warning = new Warning();
$warning->station_id = $this->request['id'];
if ($message) {
$warning->message = $message;
} else {
$warning->message = $this->request['message'];
}
$warning->warning_time = time();
if ($warning->validate()) {
$warning->save();
} else {
var_dump($warning->getErrors());
die;
}
return Yii::$app->db->lastInsertID;
}
