Order::beforeSave PHP Method

    public function beforeSave()
    {
        $this->total_price = $this->getProductsCost();
        if ($this->getIsNewRecord()) {
            $this->url = md5(uniqid(time(), true));
            $this->ip = Yii::app()->getRequest()->userHostAddress;
            if ($this->getScenario() === self::SCENARIO_USER) {
                $this->delivery_price = $this->delivery ? $this->delivery->getCost($this->total_price) : 0;
                $this->separate_delivery = $this->delivery ? $this->delivery->separate_payment : null;
            }
        }
        $this->delivery_price = $this->getDeliveryCost();
        return parent::beforeSave();
    }