public function AccordionMenusBlock::getCacheTags in Accordion Menus 8.3

Same name and namespace in other branches

1. 8.4 src/Plugin/Block/AccordionMenusBlock.php \Drupal\accordion_menus\Plugin\Block\AccordionMenusBlock::getCacheTags()

The cache tags associated with this object.

When this object is modified, these cache tags will be invalidated.

Return value

string[] A set of cache tags.

Overrides ContextAwarePluginBase::getCacheTags

File

src/Plugin/Block/AccordionMenusBlock.php, line 189

Class

AccordionMenusBlock

Provides a accordion Menu block.

Namespace

Drupal\accordion_menus\Plugin\Block

Code

public function getCacheTags() {

  // Even when the menu block renders to the empty string for a user, we want
  // the cache tag for this menu to be set: whenever the menu is changed, this
  // menu block must also be re-rendered for that user, because maybe a menu
  // link that is accessible for that user has been added.
  $cache_tags = parent::getCacheTags();
  $cache_tags[] = 'config:system.menu.' . $this
    ->getDerivativeId();
  return $cache_tags;
}