Smile\ElasticsuiteCatalog\Model\Layer\Filter\Category::_getItemsData PHP Метод

    protected function _getItemsData()
    {
        $items = [];
        /** @var \Magento\CatalogSearch\Model\ResourceModel\Fulltext\Collection $productCollection */
        $productCollection = $this->getLayer()->getProductCollection();
        $optionsFacetedData = $productCollection->getFacetedData($this->getFilterField());
        $currentCategory = $this->dataProvider->getCategory();
        $categories = $this->getChildrenCategories();
        if ($currentCategory->getIsActive()) {
            foreach ($categories as $category) {
                if (isset($optionsFacetedData[(int) $category->getId()])) {
                    $productCount = $optionsFacetedData[$category->getId()]['count'];
                    if ($category->getIsActive() && $productCount > 0) {
                        $item = ['label' => $this->escaper->escapeHtml($category->getName()), 'value' => $category->getId(), 'count' => $optionsFacetedData[$category->getId()]['count'], 'url' => $category->getUrl()];
                        $items[] = $item;
                    }
                }
            }
        }
        return $items;
    }