public function getCityDetailsSzamla()
{
return $this->hasOne(WshCoCity::className(), ['cit_zip' => 'zip']);
}
public function actionCity($zip)
{
$model = WshCoCity::find()->where(["cit_zip" => $zip])->asArray()->one();
header("Content-Type: application/json");
echo Json::encode(["city" => $model["cit_name"]]);
exit;
}