function PlaceholderingRenderCache::get

Overrides RenderCache::get

File

core/lib/Drupal/Core/Render/PlaceholderingRenderCache.php, line 98

Class

PlaceholderingRenderCache

Adds automatic placeholdering to the RenderCache.

Namespace

Code

public function get(array $elements) {
  // When rendering placeholders, special case auto-placeholdered elements:
  // avoid retrieving them from cache again, or rendering them again.
  if (isset($elements['#create_placeholder']) && $elements['#create_placeholder'] === FALSE) {
    $cached_placeholder_result = $this->getFromPlaceholderResultsCache($elements);
    if ($cached_placeholder_result !== FALSE) {
      return $cached_placeholder_result;
    }
  }
  $cached_element = parent::get($elements);
  if ($cached_element === FALSE) {
    return FALSE;
  }
  else {
    if ($this->placeholderGenerator
      ->canCreatePlaceholder($elements) && $this->placeholderGenerator
      ->shouldAutomaticallyPlaceholder($cached_element)) {
      return $this->createPlaceholderAndRemember($cached_element, $elements);
    }
    return $cached_element;
  }
}