public function ForumBlockBase::build in Drupal 9

Same name and namespace in other branches

1. 8 core/modules/forum/src/Plugin/Block/ForumBlockBase.php \Drupal\forum\Plugin\Block\ForumBlockBase::build()

Builds and returns the renderable array for this block plugin.

If a block should not be rendered because it has no content, then this method must also ensure to return no content: it must then only return an empty array, or an empty array with #cache set (with cacheability metadata indicating the circumstances for it being empty).

Return value

array A renderable array representing the content of the block.

Overrides BlockPluginInterface::build

See also

\Drupal\block\BlockViewBuilder

File

core/modules/forum/src/Plugin/Block/ForumBlockBase.php, line 20

Class

ForumBlockBase

Provides a base class for Forum blocks.

Namespace

Drupal\forum\Plugin\Block

Code

public function build() {
  $result = $this
    ->buildForumQuery()
    ->execute();
  $elements = [];
  if ($node_title_list = node_title_list($result)) {
    $elements['forum_list'] = $node_title_list;
    $elements['forum_more'] = [
      '#type' => 'more_link',
      '#url' => Url::fromRoute('forum.index'),
      '#attributes' => [
        'title' => $this
          ->t('Read the latest forum topics.'),
      ],
    ];
  }
  return $elements;
}