public function FacetBlockAjaxController::ajaxFacetBlockView in Facets 8

Loads and renders the facet blocks via AJAX.

Parameters

\Symfony\Component\HttpFoundation\Request $request: The current request object.

Return value

\Drupal\Core\Ajax\AjaxResponse The ajax response.

Throws

\Symfony\Component\HttpKernel\Exception\NotFoundHttpException Thrown when the view was not found.

1 string reference to 'FacetBlockAjaxController::ajaxFacetBlockView'

facets.routing.yml in ./facets.routing.yml

facets.routing.yml

File

src/Controller/FacetBlockAjaxController.php, line 114

Class

FacetBlockAjaxController

Defines a controller to load a facet via AJAX.

Namespace

Drupal\facets\Controller

Code

public function ajaxFacetBlockView(Request $request) {
  $response = new AjaxResponse();

  // Rebuild the request and the current path, needed for facets.
  $path = $request->request
    ->get('facet_link');
  $facets_blocks = $request->request
    ->get('facets_blocks');
  if (empty($path) || empty($facets_blocks)) {
    throw new NotFoundHttpException('No facet link or facet blocks found.');
  }

  // Make sure we are not updating blocks multiple times.
  $facets_blocks = array_unique($facets_blocks);
  $new_request = Request::create($path);
  $request_stack = new RequestStack();
  $processed = $this->pathProcessor
    ->processInbound($path, $new_request);
  $this->currentPath
    ->setPath($processed);
  $request->attributes
    ->add($this->router
    ->matchRequest($new_request));
  $this->currentRouteMatch
    ->resetRouteMatch();
  $request_stack
    ->push($new_request);
  $container = \Drupal::getContainer();
  $container
    ->set('request_stack', $request_stack);
  $active_facet = $request->request
    ->get('active_facet');

  // Build the facets blocks found for the current request and update.
  foreach ($facets_blocks as $block_id => $block_selector) {
    $block_entity = $this->storage
      ->load($block_id);
    if ($block_entity) {

      // Render a block, then add it to the response as a replace command.
      $block_view = $this->entityTypeManager
        ->getViewBuilder('block')
        ->view($block_entity);
      $block_view = (string) $this->renderer
        ->renderPlain($block_view);
      $response
        ->addCommand(new ReplaceCommand($block_selector, $block_view));
    }
  }
  $response
    ->addCommand(new InvokeCommand('[data-block-plugin-id="' . $active_facet . '"]', 'addClass', [
    'facet-active',
  ]));

  // Update filter summary block.
  $update_summary_block = $request->request
    ->get('update_summary_block');
  if ($update_summary_block) {
    $facet_summary_block_id = $request->request
      ->get('facet_summary_block_id');
    $facet_summary_wrapper_id = $request->request
      ->get('facet_summary_wrapper_id');
    $facet_summary_block_id = str_replace('-', '_', $facet_summary_block_id);
    if ($facet_summary_block_id) {
      $block_entity = $this->storage
        ->load($facet_summary_block_id);
      $block_view = $this->entityTypeManager
        ->getViewBuilder('block')
        ->view($block_entity);
      $block_view = (string) $this->renderer
        ->renderPlain($block_view);
      $response
        ->addCommand(new ReplaceCommand('[data-drupal-facets-summary-id=' . $facet_summary_wrapper_id . ']', $block_view));
    }
  }
  return $response;
}