/**
  * Prepare filter for search.
  *
  * @param InjectableFixture $product
  * @param CatalogProductAttribute $attribute
  * @return string
  */
 protected function prepareFilter(InjectableFixture $product, CatalogProductAttribute $attribute)
 {
     $filter = '';
     $attributesFillData = $product->getAttributes();
     $attributeOptions = $attribute->getOptions();
     foreach ($attributesFillData['preset'] as $optionsFillData) {
         foreach ($optionsFillData as $optionKey) {
             $optionKey = str_replace('option_key_', '', $optionKey);
             $filter .= isset($attributeOptions[$optionKey]['view']) ? $attributeOptions[$optionKey]['view'] : $attributeOptions[$optionKey]['admin'];
         }
     }
     return $filter;
 }