LinksConverter.php in Hashtags 8

Namespace

Drupal\hashtags\Plugin\Filter

File

src/Plugin/Filter/LinksConverter.php

<?php

/**
 * Created by PhpStorm.
 * User: Alex
 * Date: 20.12.2018
 * Time: 22:28
 */
namespace Drupal\hashtags\Plugin\Filter;

use Drupal\Core\Link;
use Drupal\Core\Url;

/*
 * Helper class to pass parameters to callback function within preg_replace_callback
 */
class LinksConverter {
  private $hashtags_tids;
  function __construct($hashtags_tids) {
    $this->hashtags_tids = $hashtags_tids;
  }
  function replace($matches) {
    if (isset($this->hashtags_tids)) {
      $hashtags_tids = $this->hashtags_tids;
    }
    $first_delimeter = isset($matches[1]) ? $matches[1] : '';
    $hashtag_name = isset($matches[3]) ? $matches[3] : '';
    $hashtag_tid = isset($this->hashtags_tids[strtolower($hashtag_name)]) ? $this->hashtags_tids[strtolower($hashtag_name)] : '';
    $hashtag_name = '#' . $hashtag_name;

    // hashtag is not exists - show without link
    if (empty($hashtag_tid)) {
      return $first_delimeter . $hashtag_name;
    }

    // Fatal error: [] operator not supported for strings in /includes/common.inc on line 2442
    // Issue comes up when we try to bind attribute to link which has path parameter of the current page............

    /*if ($_GET['q'] == 'taxonomy/term/'.$hashtag_tid) {
          $hashtag_link = l($hashtag_name, 'taxonomy/term/'.$hashtag_tid);
      } else {
          $hashtag_link = l($hashtag_name, 'taxonomy/term/'.$hashtag_tid, array('attributes' => array('class' => 'hashtag')));
      }*/
    $hashtag_link = Link::fromTextAndUrl($hashtag_name, Url::fromRoute('entity.taxonomy_term.canonical', array(
      'taxonomy_term' => $hashtag_tid,
    ), array(
      'attributes' => array(
        'class' => 'hashtag',
      ),
    )))
      ->toString();
    return $first_delimeter . $hashtag_link;
  }

}

Classes

Name	Description
LinksConverter