Smile\ElasticsuiteCatalog\Model\Layer\Filter\Price::addFacetToCollection PHP Метод

    public function addFacetToCollection($config = [])
    {
        $facetField = $this->getFilterField();
        $facetType = BucketInterface::TYPE_HISTOGRAM;
        $customerGroupId = $this->customerSession->getCustomerGroupId();
        $facetConfig = ['nestedFilter' => ['price.customer_group_id' => $customerGroupId], 'minDocCount' => 1];
        $calculation = $this->dataProvider->getRangeCalculationValue();
        if ($calculation === \Magento\Catalog\Model\Layer\Filter\DataProvider\Price::RANGE_CALCULATION_MANUAL) {
            if ((int) $this->dataProvider->getRangeStepValue() > 0) {
                $facetConfig['interval'] = (int) $this->dataProvider->getRangeStepValue();
            }
        }
        $productCollection = $this->getLayer()->getProductCollection();
        $productCollection->addFacet($facetField, $facetType, $facetConfig);
        return $this;
    }