function blocache_block_build_alter in Blocache (Block Cache Control) 8

Implements hook_block_build_alter().

File

./blocache.module, line 34

Provides a structure for block cache control.

Code

function blocache_block_build_alter(array &$build, BlockPluginInterface $block) {
  $block_id = $build['#cache']['keys'][2];
  $block_entity = Drupal::entityTypeManager()
    ->getStorage('block')
    ->load($block_id);
  if (!$block_entity instanceof BlockInterface) {
    return;
  }
  $blocache_metadata = Drupal::service('blocache.metadata');
  $blocache_metadata
    ->setBlock($block_entity);
  if ($blocache_metadata
    ->isOverridden()) {
    $metadata = $blocache_metadata
      ->getMetadata();
    $build['#cache']['max-age'] = $metadata['max-age'];
    $build['#cache']['contexts'] = $metadata['contexts'];
    $build['#cache']['tags'] = $metadata['tags'];

    // This disable page caching wherever this block has been placed.
    if ($metadata['max-age'] === 0) {
      \Drupal::service('page_cache_kill_switch')
        ->trigger();
    }
  }
}