sitemap_status-1.0.0-alpha4/src/Cache/DatabaseBackend.php

<?php

namespace Drupal\sitemap_status\Cache;

use Drupal\Core\Cache\DatabaseBackend as CoreDatabaseBackend;

/**
 * Defines the cache implementation.
 *
 * Extends Drupal's default cache implementation.
 *
 * @ingroup cache
 */
class DatabaseBackend extends CoreDatabaseBackend {

  /**
   * {@inheritdoc}
   */
  public function deleteAll() {
    // Preserve the cache if set in the config.
    $config = \Drupal::config('sitemap_status.settings');
    $preserveCache = $config->get('preserve_cache');
    if ($preserveCache !== 1) {
      parent::deleteAll();
    }
  }

}