function example_callback in Views Layout 8

Callback for skipped regions.

Parameters

$plugin_id: The id of the layout being rendered.

$region: The name of the skipped region being rendered.

$view: The view being rendered.

Return value

array A render array for the skipped region.

File

./views_layout.api.php, line 25

Documentation for Views Layout API.

Code

function example_callback($plugin_id, $region, ViewExecutable $view) {

  // Find two distinct random nodes and store in a static variable.
  $random =& drupal_static(__FUNCTION__, array());
  if (empty($random)) {
    $query = \Drupal::service('entity.query');
    $ids = $query
      ->get('node')
      ->condition('type', 'article')
      ->condition('status', 1)
      ->execute();
    $ids = array_values($ids);
    shuffle($ids);
    $random = array_slice($ids, 0, 2);
  }

  // Render the random values in the skipped regions.
  switch ($region) {
    case 'three':
      $id = $random[0];
      break;
    case 'seven':
      $id = $random[1];
      break;
  }
  $view_builder = \Drupal::entityTypeManager()
    ->getViewBuilder('node');
  $node = \Drupal::entityTypeManager()
    ->getStorage('node')
    ->load($id);
  return $view_builder
    ->view($node, 'teaser');
}