How to redefine CalculatedPrice?

Shopware 6 (English) Programming (EN)
1

 

I’m trying to write plugin in Shopware6, it must add some custom values (like deposit) to Product line item. So I wrote my class

class DepositCalculatedPrice extends CalculatedPrice
{
    /** @var float $deposit */
    protected $deposit;

    public function __construct(
        float $unitPrice,
        float $totalPrice,
        CalculatedTaxCollection $calculatedTaxes,
        CalculatedTaxCollection $calculatedTaxesNoDeposit,
        TaxRuleCollection $taxRules,
        int $quantity = 1,
        ?ReferencePrice $referencePrice = null,
        ?ListPrice $listPrice = null,
        float $deposit = 0,
    ) {
        parent::__construct(
            $unitPrice,
            $totalPrice,
            $calculatedTaxes,
            $taxRules,
            $quantity,
            $referencePrice,
            $listPrice
        );
        $this->deposit = $deposit;
    }

    public function getDeposit(): float
    {
        return FloatComparator::cast($this->deposit);
    }
}

Then I use it in my Calculator and then in my PriceProcessor. All goes well until I try to submit my order, but then Shopware6 checks field definintion classes in Checkout/Order/Aggregate/OrderLineItem/OrderLineItemDefinition.php, and it checks Price json field against CalculatedPrice, not DepositCalculatedPrice. So is there any way to resolve it? Maybe I can use somewhere some descendant of OrderLineItemDefinition.php? Or make it not checking field definitions?