/**
* @param Order $order
* @return OrderTransaction|null
*/
public static function createForOrder(Order $order)
{
$order->calculate();
$model = new static();
$model->order_id = $order->id;
$model->payment_type_id = $order->payment_type_id;
$model->status = static::TRANSACTION_START;
$model->total_sum = $order->total_price;
return $model->save() ? $model : null;
}