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   1  <?php
   2  /**
   3   * Server-side rendering of the `core/comments-pagination-numbers` block.
   4   *
   5   * @package WordPress
   6   */
   7  
   8  /**
   9   * Renders the `core/comments-pagination-numbers` block on the server.
  10   *
  11   * @param array    $attributes Block attributes.
  12   * @param string   $content    Block default content.
  13   * @param WP_Block $block      Block instance.
  14   *
  15   * @return string Returns the pagination numbers for the comments.
  16   */
  17  function render_block_core_comments_pagination_numbers( $attributes, $content, $block ) {
  18      // Bail out early if the post ID is not set for some reason.
  19      if ( empty( $block->context['postId'] ) ) {
  20          return '';
  21      }
  22  
  23      $comment_vars = build_comment_query_vars_from_block( $block );
  24  
  25      $total   = ( new WP_Comment_Query( $comment_vars ) )->max_num_pages;
  26      $current = ! empty( $comment_vars['paged'] ) ? $comment_vars['paged'] : null;
  27  
  28      // Render links.
  29      $content = paginate_comments_links(
  30          array(
  31              'total'     => $total,
  32              'current'   => $current,
  33              'prev_next' => false,
  34              'echo'      => false,
  35          )
  36      );
  37  
  38      if ( empty( $content ) ) {
  39          return '';
  40      }
  41  
  42      $wrapper_attributes = get_block_wrapper_attributes();
  43  
  44      return sprintf(
  45          '<div %1$s>%2$s</div>',
  46          $wrapper_attributes,
  47          $content
  48      );
  49  }
  50  
  51  /**
  52   * Registers the `core/comments-pagination-numbers` block on the server.
  53   */
  54  function register_block_core_comments_pagination_numbers() {
  55      register_block_type_from_metadata(
  56          __DIR__ . '/comments-pagination-numbers',
  57          array(
  58              'render_callback' => 'render_block_core_comments_pagination_numbers',
  59          )
  60      );
  61  }
  62  add_action( 'init', 'register_block_core_comments_pagination_numbers' );