public function ExposedFilterDataBlock::build in Exposed Filter Data 8

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

src/Plugin/Block/ExposedFilterDataBlock.php, line 74

Class

ExposedFilterDataBlock

Provides an 'Exposed Filters Data' block.

Namespace

Drupal\exposed_filter_data\Plugin\Block

Code

public function build() {
  $build = [];
  if ($params = $this->request->query
    ->all()) {

    // Allow modules to alter the parameters.
    $this->moduleHandler
      ->alter('exposed_filter_data_params', $params);
    $build = [
      '#theme' => 'exposed_filter_data_block',
      '#filters' => $params,
      '#attached' => [
        'library' => [
          'exposed_filter_data/exposed_filter_data.block',
        ],
      ],
    ];
  }
  return $build;
}