public PlaceholderingRenderCache::get(array $elements)
Gets the cached, pre-rendered element of a renderable element from cache.
Parameters
array $elements: A renderable array.
Return value
array|false A renderable array, with the original element and all its children pre- rendered, or FALSE if no cached copy of the element is available.
Overrides RenderCache::get
See also
\Drupal\Core\Render\RendererInterface::render()
::set()
File
- core/lib/Drupal/Core/Render/PlaceholderingRenderCache.php, line 94
Class
- PlaceholderingRenderCache
- Adds automatic placeholdering to the RenderCache.
Namespace
Drupal\Core\Render
Code
public function get(array $elements) {
// @todo remove this check when https://www.drupal.org/node/2367555 lands.
if (!$this->requestStack->getCurrentRequest()->isMethodSafe()) {
return FALSE;
}
// 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;
}
}
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