function DisplayPluginBase::getCacheMetadata

Gets the cache metadata.

Return value

\Drupal\Core\Cache\CacheableMetadata The cache metadata.

Overrides DisplayPluginInterface::getCacheMetadata

File

core/modules/views/src/Plugin/views/display/DisplayPluginBase.php, line 2411

Class

DisplayPluginBase

Base class for views display plugins.

Namespace

Code

public function getCacheMetadata() {
  if (!isset($this->display['cache_metadata'])) {
    $cache_metadata = $this->calculateCacheMetadata();
    $this->display['cache_metadata']['max-age'] = $cache_metadata->getCacheMaxAge();
    $this->display['cache_metadata']['contexts'] = $cache_metadata->getCacheContexts();
    $this->display['cache_metadata']['tags'] = $cache_metadata->getCacheTags();
  }
  else {
    $cache_metadata = (new CacheableMetadata())->setCacheMaxAge($this->display['cache_metadata']['max-age'])
      ->setCacheContexts($this->display['cache_metadata']['contexts'])
      ->setCacheTags($this->display['cache_metadata']['tags']);
  }
  return $cache_metadata;
}