Smile\ElasticsuiteCatalog\Model\Autocomplete\Product\Attribute\DataProvider::getItems PHP Метод

    public function getItems()
    {
        $items = [];
        foreach ($this->attributeCollection as $attribute) {
            $filterField = $this->getFilterField($attribute);
            $facetData = $this->productCollection->getFacetedData($filterField);
            foreach ($facetData as $currentFilter) {
                if ($currentFilter['value'] != '__other_docs') {
                    $currentFilter['attribute_code'] = $attribute->getAttributeCode();
                    $currentFilter['attribute_label'] = $attribute->getStoreLabel();
                    $currentFilter['type'] = $this->getType();
                    $items[] = $this->itemFactory->create($currentFilter);
                }
            }
        }
        uasort($items, [$this, 'resultSorterCallback']);
        return array_slice($items, 0, $this->getResultsPageSize());
    }