public static function CacheRefresher::doRefresh in Optimizely 8.0

Same name and namespace in other branches

1. 8 src/CacheRefresher.php \Drupal\optimizely\CacheRefresher::doRefresh()

doRefresh()

@parm $path_array - An array of the target paths entries that the cache needs to be cleared. Each entry can also contain wildcards /* or variables "<front>".

3 calls to CacheRefresher::doRefresh()

AddUpdateForm::submitForm in src/AddUpdateForm.php

Form submission handler.

AjaxEnable::enableDisable in src/AjaxEnable.php

DeleteForm::submitForm in src/DeleteForm.php

Form submission handler.

File

src/CacheRefresher.php, line 15

Class

CacheRefresher

Namespace

Drupal\optimizely

Code

public static function doRefresh($path_array, $original_path_array = NULL) {

  // Determine protocol
  $protocol = isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == 'on' ? 'https' : 'http';
  $cid_base = $protocol . '://' . $_SERVER['HTTP_HOST'] . '/';

  // If update of project that includes changes to the path, clear cache on all
  // paths to add/remove Optimizely javascript call
  if (isset($original_path_array)) {
    $path_array = array_merge($path_array, $original_path_array);
  }

  // Loop through every path value
  foreach ($path_array as $path_count => $path) {
    $recursive = NULL;

    // Apply to all paths when there's a '*' path entry (default project entry
    // for example) or it's an exclude path entry (don't even try to figure out
    // the paths, just flush all page cache
    if (strpos($path, '*') !== 0) {
      if (strpos($path, '<front>') === 0) {
        $frontpage = \Drupal::config('system.site')
          ->get('page.front');
        $frontpage = $frontpage ? $frontpage : 'node';
        $cid = $cid_base . '/' . $frontpage;
        $recursive = FALSE;
      }
      elseif (strpos($path, '/*') > 0) {
        $cid = $cid_base . substr($path, 0, strlen($path) - 2);
        $recursive = TRUE;
      }
      else {
        $cid = $cid_base . $path;
        $recursive = FALSE;
      }

      // D7, was: cache_clear_all($cid, 'cache_page', $recursive);
      // N.B. We really need to revisit this call to deleteAll()
      // because of possible performance hits. EF
      $cache = \Drupal::cache('render');
      $recursive ? $cache
        ->deleteAll() : $cache
        ->delete($cid);
    }
    else {

      // D7, was: cache_clear_all('*', 'cache_page', TRUE);
      $cache = \Drupal::cache('render');
      $cache
        ->deleteAll();
      break;
    }
  }

  // Varnish
  // if (module_exists('varnish')) {
  if (\Drupal::moduleHandler()
    ->moduleExists('varnish')) {
    varnish_expire_cache($path_array);
    drupal_set_message(t('Successfully purged cached page from Varnish.'));
  }
  drupal_set_message(t('"Render" cache has been cleared based on the project path settings.'), 'status');
}