Create d8 comments

devel_generate_d8_comemnt

function devel_generate_add_comments_custom($node, $num_comments, $title_length = 8) {

  for ($i = 1; $i <= $num_comments; $i++) {
    switch ($i % 3) {
      case 1:
        $pid = db_query_range("SELECT cid FROM {comment} WHERE pid = 0 AND nid = :nid ORDER BY RAND()", 0, 1, array(':nid' => $node->nid))->fetchField();
        break;
      case 2:
        $pid = db_query_range("SELECT cid FROM {comment} WHERE pid > 0 AND nid = :nid ORDER BY RAND()", 0, 1, array(':nid' => $node->nid))->fetchField();
        break;
      default:
        $pid = 0;
    }

    $comment = entity_create('comment', array(
      'nid' => $node->nid,
      'cid' => NULL,
      'name' => 'devel generate',
      'mail' => 'devel_generate@example.com',
      'timestamp' => mt_rand($node->created, REQUEST_TIME),
      'subject' => substr(devel_create_greeking(mt_rand(2, $title_length), TRUE), 0, 63),
      'uid' => 1,
      'langcode' => LANGUAGE_NOT_SPECIFIED,
      'pid' => $pid,
    ));

    // Populate all core fields on behalf of field.module
    module_load_include('inc', 'devel_generate', 'devel_generate.fields');
    devel_generate_fields($comment, 'comment', 'comment_node_' . $node->type);
    $comment->save();
  }
}

module_load_include('inc', 'devel_generate', 'devel_generate');
devel_generate_add_comments_custom(node_load(1), 300);