_objectManager = ObjectManager::getInstance(); $this->_helper = $helper; } public function toOptionArray() { $options = []; if ($this->_helper->isRevoulutionModuleActive()) { if (!$this->revslider) { $this->revslider = $this->_objectManager->get('\Nwdthemes\Revslider\Model\ResourceModel\Slider\CollectionFactory')->create(); } if ($this->revslider && $this->revslider->getSize()) { $sliders = $this->revslider->addFieldToSelect('*')->setOrder('title', 'asc'); foreach ($sliders as $slider) { $options[] = [ 'value' => $slider->getAlias(), 'label' => $slider->getTitle() ]; } } } return $options; } }