drupal-8-entity-data-sample.php

<?php
// Code that accesses entity data for a template with lots of good examples of how to get information


/**
 * Implements hook_preprocess_HOOK() for Paragraph templates.
 */
function THEMENAME_preprocess_paragraph(&$variables) {
  $paragraphy_type = $variables['paragraph']->getType();

  if ($paragraphy_type === 'hero') {
    $variables['background_video'] = FALSE;
    $hero_field_image_object = $variables['paragraph']->getFields()['field_image'];
    $hero_field_image_data = $hero_field_image_object->getValue();
    $variables['hero_media_type'] = 'null';

    // Do we have a hero image/video.
    if (isset($hero_field_image_data[0]['target_id'])) {
      $hero_field_image_entity = \Drupal::entityTypeManager()->getStorage('media')->load($hero_field_image_data[0]['target_id']);
      $variables['hero_media_type'] = $hero_field_image_entity->bundle();
      // Is it a video?
      if ($variables['hero_media_type'] === 'video') {
        // Get a render array.
        $hero_field_image_video_render = $hero_field_image_entity->field_video->view([
          'label' => 'none',
          'type' => 'video_embed_field_video',
          'settings' => [
            'autoplay' => TRUE,
            'responsive' => TRUE,
          ],
        ])[0]['children'];
        // If it's an externally hosted video,
        // we need to provide the correct URL params.
        if (isset($hero_field_image_video_render['#provider'])) {
          // Apply the correct params.
          switch ($hero_field_image_video_render['#provider']) {
            case 'youtube':
              $hero_field_image_video_render['#query'] = [
                'autoplay' => 1,
                'controls' => 0,
                'loop' => 1,
                'modestbranding' => 1,
                'mute' => 1,
                'rel' => 0,
              ];
              break;

            case 'vimeo':
              $hero_field_image_video_render['#query'] = [
                'background' => 1,
              ];
              $hero_field_image_video_render['#attached']['library'][] = 'THEMENAME/background-vimeo-video';
              break;
          }
        }
        $variables['background_video'] = $hero_field_image_video_render;
      }
    }
  }
}