FieldDownloadCount.php in Open Social 8.7

Namespace

Drupal\download_count\Plugin\Field\FieldFormatter

File

modules/custom/download_count/src/Plugin/Field/FieldFormatter/FieldDownloadCount.php

<?php

namespace Drupal\download_count\Plugin\Field\FieldFormatter;

use Drupal\Core\Field\FieldItemListInterface;
use Drupal\file\Plugin\Field\FieldFormatter\GenericFileFormatter;
use Drupal\Core\Database\Database;
use Drupal\Core\Link;
use Drupal\Core\Url;
use Drupal\Core\Template\Attribute;
use Drupal\Component\Utility\Html;

/**
 * The FieldDownloadCount class.
 *
 * @FieldFormatter(
 *  id = "FieldDownloadCount",
 *  label = @Translation("Generic file with download count"),
 *  field_types = {"file"}
 * )
 */
class FieldDownloadCount extends GenericFileFormatter {

  /**
   * {@inheritdoc}
   */
  public function viewElements(FieldItemListInterface $items, $langcode) {
    $element = [];
    $entity = $items
      ->getEntity();
    $entity_type = $entity
      ->getEntityTypeId();
    $access = \Drupal::currentUser()
      ->hasPermission('view download counts');
    foreach ($this
      ->getEntitiesToView($items, $langcode) as $delta => $file) {
      $item = $file->_referringItem;
      if ($access) {
        $download = Database::getConnection()
          ->query('SELECT COUNT(fid) from {download_count} where fid = :fid AND type = :type AND id = :id', [
          ':fid' => $file
            ->id(),
          ':type' => $entity_type,
          ':id' => $entity
            ->id(),
        ])
          ->fetchField();
        $file->download = $download;
      }
      $link_url = file_create_url($file
        ->getFileUri());
      $file_size = $file
        ->getSize();
      $options = [
        'attributes' => [
          'type' => $file
            ->getMimeType() . '; length=' . $file
            ->getSize(),
        ],
      ];

      // Use the description as the link text if available.
      if (empty($item->description)) {
        $link_text = $file
          ->getFilename();
      }
      else {
        $link_text = $item->description;
        $options['attributes']['title'] = Html::escape($file
          ->getFilename());
      }

      // Classes to add to the file field for icons.
      $classes = [
        'file',
        // Add a specific class for each and every mime type.
        'file--mime-' . strtr($file
          ->getMimeType(), [
          '/' => '-',
          '.' => '-',
        ]),
        // Add a more general class for groups of well known mime types.
        'file--' . file_icon_class($file
          ->getMimeType()),
      ];
      $attributes = new Attribute([
        'class' => $classes,
      ]);
      $link = Link::fromTextAndUrl($link_text, Url::fromUri($link_url, $options))
        ->toString();
      if (isset($file->download) && $file->download > 0) {
        $count = \Drupal::translation()
          ->formatPlural($file->download, '1 download', '@count downloads');
      }
      else {
        $count = $this
          ->t('0 downloads');
      }
      $theme = \Drupal::theme()
        ->getActiveTheme();

      // Check if socialbase is one of the base themes.
      // Then get the path to socialbase theme and provide a variable
      // that can be used in the template for a path to the icons.
      if (array_key_exists('socialbase', $theme
        ->getBaseThemes())) {
        $basethemes = $theme
          ->getBaseThemes();
        $path_to_socialbase = $basethemes['socialbase']
          ->getPath();
      }
      $mime_type = $file
        ->getMimeType();
      $generic_mime_type = file_icon_class($mime_type);
      if (isset($generic_mime_type)) {

        // Set new icons for the mime types.
        switch ($generic_mime_type) {
          case 'application-pdf':
            $node_icon = 'pdf';
            break;
          case 'x-office-document':
            $node_icon = 'document';
            break;
          case 'x-office-presentation':
            $node_icon = 'presentation';
            break;
          case 'x-office-spreadsheet':
            $node_icon = 'spreadsheet';
            break;
          case 'package-x-generic':
            $node_icon = 'archive';
            break;
          case 'audio':
            $node_icon = 'audio';
            break;
          case 'video':
            $node_icon = 'video';
            break;
          case 'image':
            $node_icon = 'image';
            break;
          default:
            $node_icon = 'text';
        }
      }
      $element[$delta] = [
        '#theme' => !$access ? 'file_link' : 'download_count_file_field_formatter',
        '#file' => $file,
        '#link' => $link,
        '#link_url' => $link_url,
        '#link_text' => $link_text,
        '#classes' => $attributes['class'],
        '#count' => $count,
        '#file_size' => format_size($file_size),
        '#path_to_socialbase' => $path_to_socialbase,
        '#node_icon' => $node_icon,
        '#attached' => [
          'library' => [
            'classy/file',
          ],
        ],
        '#cache' => [
          'tags' => $file
            ->getCacheTags(),
        ],
      ];

      // Pass field item attributes to the theme function.
      if (isset($item->_attributes)) {
        $element[$delta] += [
          '#attributes' => [],
        ];
        $element[$delta]['#attributes'] += $item->_attributes;

        // Unset field item attributes since they have been included in the
        // formatter output and should not be rendered in the field template.
        unset($item->_attributes);
      }
    }
    return $element;
  }

}

Classes

Name	Description
FieldDownloadCount	The FieldDownloadCount class.