How to calculate product price based on custom action in Catalog Price Rules

Question

I have added new action in catalog price rule.

I have added this action through overriding below file.

module-catalog-rule/Model/Rule/Action/SimpleActionOptionsProvider.php

When this action is applied then how to calculate product price based on this action.

In magento module-catalog-rule which file/function is used to calculate product price when other action is applied.

Anyone knows then please help.

Answer 1

I have been recently fighting with something similar. Take a look at \Magento\CatalogRule\Model\Indexer\ProductPriceCalculator class

public function calculate($ruleData, $productData = null)
{
    if ($productData !== null && isset($productData['rule_price'])) {
        $productPrice = $productData['rule_price'];
    } else {
        $productPrice = $ruleData['default_price'];
    }

    switch ($ruleData['action_operator']) {
        case 'to_fixed':
            $productPrice = min($ruleData['action_amount'], $productPrice);
            break;
        case 'to_percent':
            $productPrice = $productPrice * $ruleData['action_amount'] / 100;
            break;
        case 'by_fixed':
            $productPrice = max(0, $productPrice - $ruleData['action_amount']);
            break;
        case 'by_percent':
            $productPrice = $productPrice * (1 - $ruleData['action_amount'] / 100);
            break;
        default:
            $productPrice = 0;
    }

    return $this->priceCurrency->round($productPrice);
}

You'd validate your custom value is being received in $ruleData['action_operator'] and then add a new case with your custom logic