Calculator Plugins

Calculator plugins are registered in the CalculationDependencyProvider::getQuoteCalculatorPluginStack() for QuoteTransfer and CalculationDependencyProvider::getOrderCalculatorPluginStack() or in later versions of the Calculation module 4.00 and above CalculationDependencyProvider::getQuoteCalculatorPluginStack() for OrderTransfer.

This method can be extended on the project level and the plugin stack can be updated with your own plugins.

Each calculator must implement CalculatorPluginInterface.

<?php
interface CalculationPluginInterface
{
/**
* @api
*
* @param \Generated\Shared\Transfer\CalculableObjectTransfer $calculableObjectTransfer
*
* @return void
*/
public function recalculate(CalculableObjectTransfer $calculableObjectTransfer);
}

• RemoveTotalsCalculatorPlugin - Resets quote totals, sets TotalsTransfer empty.

• RemoveAllCalculatedDiscountsCalculatorPlugin - Resets every CalculatedDiscountTransfer.

• ItemGrossAmountsCalculatorPlugin - Calculates sumGrossPrice for each ItemTransfer. ItemTransfer::sumGrossPrice = ItemTransfer::unitGrossPrice * ItemTransfer::quantity

• ProductOptionGrossSumCalculatorPlugin - Calculates unitGrossPriceWithProductOptions, sumGrossPriceWithProductOptions for ItemTransfer and sumGrossPrice for ProductOptionTransfer.

  >ItemTransfer::unitGrossPriceWithProductOptions = sum(ProductOptionTransfer::unitGrossPrice) + ItemTransfer::unitGrossPrice
  ItemTransfer::sumGrossPriceWithProductOptions = sum(ProductOptionTransfer::sumGrossPrice) + ItemTransfer:sumGrossPrice
  

• SubtotalTotalsCalculatorPlugin - Sums each of the sumGrossPriceWithProductOptions items. TotalsTransfer::subtotal = sum(ItemTransfer::sumGrossPriceWithProductOptions)

• ExpensesGrossSumAmountCalculatorPlugin - Calculates sumGrossPrice for each item. ExpenseTransfer::sumGrossPrice = ExpenseTransfer::unitGrossPrice * ExpenseTransfer::quantity

• ExpenseTotalsCalculatorPlugin - Calculates expenseTotal in TotalsTransfer. TotalsTransfer::expenseTotal = sum(ExpenseTransfer::sumGrossPrice)

• DiscountCalculatorPlugin - Applies discounts to current QuoteTransfer each discountable item with property calculatedDiscounts, gets discounts filled. Also voucherDiscounts and cartRuleDiscounts are populated with additional used discount data for order level.

• SumGrossCalculatedDiscountAmountCalculatorPlugin - Calculates and sets ItemTransfer amounts after discounts to sumGrossPriceWithProductOptionAndDiscountAmounts and unitGrossPriceWithProductOptionAndDiscountAmounts; sets expense amounts after discounts to unitGrossPriceWithDiscounts and sumGrossPriceWithDiscounts.

  ItemTransfer::unitGrossPriceWithProductOptionAndDiscountAmounts = ItemTransfer::unitGrossPriceWithProductOptions -  (sum(ItemTransfer:calculatedDiscounts::unitGrossPrice) + sum(ProductOptionTransfer::calculatedDiscounts::unitGrossPrice))
  ItemTransfer::sumGrossPriceWithProductOptionAndDiscountAmounts = ItemTransfer::sumGrossPriceWithProductOptions -  (sum(ItemTransfer:calculatedDiscounts::sumGrossPrice) + sum(ProductOptionTransfer::calculatedDiscounts::sumGrossPrice))
  

• DiscountTotalsCalculatorPlugin - Calculates total for discounts used and sets it to totalDiscount in TotalsTransfer. Sum all discountable item CalculatedDiscountTransfer gross amounts:

  TotalsTransfer:discountTotal += sum(ItemTransfer::CalculateDiscountTransfer::sumGrossAmount +
  ItemTransfer::ProductOptionTransfer::CalculateDiscountTransfer::sumGrossAmount + ExpenseTransfer::sumGrossAmount)
  GrandTotalTotalsCalculatorPlugin - Calculates grandTotal in TotalsTransfer.
  TotalsTransfer:grandTotal = TotalsTransfer::subtotal + TotalsTransfer:expenseTotal
  

• GrandTotalWithDiscountsCalculatorPlugin - Calculates GrandTotal after discounts in TotalsTransfer. TotalsTransfer:grandTotal = TotalsTransfer::subtotal + TotalsTransfer:expenseTotal - TotalsTransfer::discountTotal

• TaxTotalsCalculatorPlugin - Calculates taxTotal and taxRate used from TotalTransfer::grandTotal, sets it in TotalsTransfer::TaxTotalsTransfer. TaxableItems = ItemTransfer, ProductOptionTransfer, ExpenseTransfer. TaxTotalsTransfer::taxRate = sum(TaxableItems) / TaxableItems TaxTotalsTransfer::taxAmount = round((TotalsTransfer::grandTotal * TaxTotalsTransfer::taxRate) / TaxTotalsTransfer::taxRate / 100)