/** * Retrieve all tax rates as an options array. * * @return array */ public function toOptionArray() { if (!$this->options) { $searchCriteria = $this->searchCriteriaBuilder->create(); $searchResults = $this->sliderRepository->getList($searchCriteria); $this->options = $this->converter->toOptionArray($searchResults->getItems(), Slider::ID, Slider::SLIDER_TITLE); } return $this->options; }