function template_preprocess_comment in Drupal 8

Same name and namespace in other branches

1. 6 modules/comment/comment.module \template_preprocess_comment()
2. 7 modules/comment/comment.module \template_preprocess_comment()
3. 9 core/modules/comment/comment.module \template_preprocess_comment()

Prepares variables for comment templates.

Default template: comment.html.twig.

Parameters

array $variables: An associative array containing:

• elements: An associative array containing the comment and entity objects. Array keys: #comment, #commented_entity.

File

core/modules/comment/comment.module, line 643

Enables users to comment on published content.

Code

function template_preprocess_comment(&$variables) {

  /** @var \Drupal\Core\Datetime\DateFormatterInterface $date_formatter */
  $date_formatter = \Drupal::service('date.formatter');

  /** @var \Drupal\comment\CommentInterface $comment */
  $comment = $variables['elements']['#comment'];
  $commented_entity = $comment
    ->getCommentedEntity();
  $variables['comment'] = $comment;
  $variables['commented_entity'] = $commented_entity;
  $variables['threaded'] = $variables['elements']['#comment_threaded'];
  $account = $comment
    ->getOwner();
  $username = [
    '#theme' => 'username',
    '#account' => $account,
  ];
  $variables['author'] = \Drupal::service('renderer')
    ->render($username);
  $variables['author_id'] = $comment
    ->getOwnerId();
  $variables['new_indicator_timestamp'] = $comment
    ->getChangedTime();
  $variables['created'] = $date_formatter
    ->format($comment
    ->getCreatedTime());

  // Avoid calling DateFormatterInterface::format() twice on the same timestamp.
  if ($comment
    ->getChangedTime() == $comment
    ->getCreatedTime()) {
    $variables['changed'] = $variables['created'];
  }
  else {
    $variables['changed'] = $date_formatter
      ->format($comment
      ->getChangedTime());
  }
  if (theme_get_setting('features.comment_user_picture')) {

    // To change user picture settings (for instance, image style), edit the
    // 'compact' view mode on the User entity.
    $variables['user_picture'] = \Drupal::entityTypeManager()
      ->getViewBuilder('user')
      ->view($account, 'compact');
  }
  else {
    $variables['user_picture'] = [];
  }
  if (isset($comment->in_preview)) {
    $variables['title'] = Link::fromTextAndUrl($comment
      ->getSubject(), Url::fromRoute('<front>'))
      ->toString();
    $variables['permalink'] = Link::fromTextAndUrl(t('Permalink'), Url::fromRoute('<front>'))
      ->toString();
  }
  else {
    $uri = $comment
      ->permalink();
    $attributes = $uri
      ->getOption('attributes') ?: [];
    $attributes += [
      'class' => [
        'permalink',
      ],
      'rel' => 'bookmark',
    ];
    $uri
      ->setOption('attributes', $attributes);
    $variables['title'] = Link::fromTextAndUrl($comment
      ->getSubject(), $uri)
      ->toString();
    $variables['permalink'] = Link::fromTextAndUrl(t('Permalink'), $comment
      ->permalink())
      ->toString();
  }
  $variables['submitted'] = t('Submitted by @username on @datetime', [
    '@username' => $variables['author'],
    '@datetime' => $variables['created'],
  ]);
  if ($comment_parent = $comment
    ->getParentComment()) {

    // Fetch and store the parent comment information for use in templates.
    $account_parent = $comment_parent
      ->getOwner();
    $variables['parent_comment'] = $comment_parent;
    $username = [
      '#theme' => 'username',
      '#account' => $account_parent,
    ];
    $variables['parent_author'] = \Drupal::service('renderer')
      ->render($username);
    $variables['parent_created'] = $date_formatter
      ->format($comment_parent
      ->getCreatedTime());

    // Avoid calling DateFormatterInterface::format() twice on same timestamp.
    if ($comment_parent
      ->getChangedTime() == $comment_parent
      ->getCreatedTime()) {
      $variables['parent_changed'] = $variables['parent_created'];
    }
    else {
      $variables['parent_changed'] = $date_formatter
        ->format($comment_parent
        ->getChangedTime());
    }
    $permalink_uri_parent = $comment_parent
      ->permalink();
    $attributes = $permalink_uri_parent
      ->getOption('attributes') ?: [];
    $attributes += [
      'class' => [
        'permalink',
      ],
      'rel' => 'bookmark',
    ];
    $permalink_uri_parent
      ->setOption('attributes', $attributes);
    $variables['parent_title'] = Link::fromTextAndUrl($comment_parent
      ->getSubject(), $permalink_uri_parent)
      ->toString();
    $variables['parent_permalink'] = Link::fromTextAndUrl(t('Parent permalink'), $permalink_uri_parent)
      ->toString();
    $variables['parent'] = t('In reply to @parent_title by @parent_username', [
      '@parent_username' => $variables['parent_author'],
      '@parent_title' => $variables['parent_title'],
    ]);
  }
  else {
    $variables['parent_comment'] = '';
    $variables['parent_author'] = '';
    $variables['parent_created'] = '';
    $variables['parent_changed'] = '';
    $variables['parent_title'] = '';
    $variables['parent_permalink'] = '';
    $variables['parent'] = '';
  }

  // Helpful $content variable for templates.
  foreach (Element::children($variables['elements']) as $key) {
    $variables['content'][$key] = $variables['elements'][$key];
  }

  // Set status to a string representation of comment->status.
  if (isset($comment->in_preview)) {
    $variables['status'] = 'preview';
  }
  else {
    $variables['status'] = $comment
      ->isPublished() ? 'published' : 'unpublished';
  }

  // Add comment author user ID. Necessary for the comment-by-viewer library.
  $variables['attributes']['data-comment-user-id'] = $comment
    ->getOwnerId();

  // Add anchor for each comment.
  $variables['attributes']['id'] = 'comment-' . $comment
    ->id();
}