catalog/controller/extension/module/carousel.php

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<?php
class ControllerExtensionModuleCarousel extends Controller {
  public function index($setting) {
    static $module = 0;

    $this->load->model('design/banner');
    $this->load->model('tool/image');

    $this->document->addStyle('catalog/view/javascript/jquery/swiper/css/swiper.min.css');
    $this->document->addScript('catalog/view/javascript/jquery/swiper/js/swiper.min.js');

    $data['banners'] = array();

    $results = $this->model_design_banner->getBanner($setting['banner_id']);

    foreach ($results as $result) {
      if (is_file(DIR_IMAGE . $result['image'])) {
        $data['banners'][] = array(
          'title' => $result['title'],
          'link'  => $result['link'],
          'image' => $this->model_tool_image->resize($result['image'], $setting['width'], $setting['height'])
        );
      }
    }

    $data['module'] = $module++;

    return $this->load->view('extension/module/carousel', $data);
  }
}