CacheexcludeSubscriber.php in CacheExclude 8

Namespace

Drupal\cacheexclude\EventSubscriber

File

src/EventSubscriber/CacheexcludeSubscriber.php

<?php

namespace Drupal\cacheexclude\EventSubscriber;

use Symfony\Component\HttpKernel\KernelEvents;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;
use Drupal\node\NodeInterface;

/**
 * Class CacheexcludeSubscriber.
 *
 * @package Drupal\cacheexclude.
 */
class CacheexcludeSubscriber implements EventSubscriberInterface {

  /**
   * {@inheritdoc}
   */
  public static function getSubscribedEvents() {
    $events[KernelEvents::REQUEST][] = [
      'disableCacheForPage',
    ];
    return $events;
  }

  /**
   * Subscriber Callback for the event.
   */
  public function disableCacheForPage() {

    // Get cacheexclude page configuration.
    $config = \Drupal::config('cacheexclude.settings');
    $pages = trim($config
      ->get('cacheexclude_list'));

    // If the current page is one we want to exclude from the cache,
    // disable page cache temporarily.
    if (!empty($pages)) {
      $current_path = \Drupal::service('path.current')
        ->getPath();
      $current_path_alias = \Drupal::service('path.alias_manager')
        ->getAliasByPath($current_path);
      $path_matches = \Drupal::service('path.matcher')
        ->matchPath($current_path, $pages);
      $alias_path_matches = \Drupal::service('path.matcher')
        ->matchPath($current_path_alias, $pages);
      if ($path_matches || $alias_path_matches) {

        // Disable page cache temporarily.
        \Drupal::service('page_cache_kill_switch')
          ->trigger();
        return;
      }
    }

    // Check if current node type is one we want to exclude from the cache.
    $node = \Drupal::routeMatch()
      ->getParameter('node');
    if ($node instanceof NodeInterface) {
      $node_type = $node
        ->getType();
    }
    $node_types = $config
      ->get('cacheexclude_node_types');
    if (!empty($node_types)) {
      $node_types = array_filter($node_types);
    }
    if (isset($node_type) && isset($node_types)) {
      if (in_array($node_type, $node_types)) {

        // Disable page cache temporarily.
        \Drupal::service('page_cache_kill_switch')
          ->trigger();
      }
    }
  }

}

Classes

Name	Description
CacheexcludeSubscriber	Class CacheexcludeSubscriber.