function entity_hierarchy_views_node_view in Entity Reference Hierarchy 8

Implements hook_ENTITY_TYPE_view().

Add the embedded children view to the node body if appropriate.

Todo: hide view if empty and user adds title. See https://www.drupal.org/node/1343430

File

entity_hierarchy_views/entity_hierarchy_views.module, line 267

Contains entity_hierarchy_views.module..

Code

function entity_hierarchy_views_node_view(array &$build, NodeInterface $node, EntityViewDisplayInterface $display, $view_mode) {
  if ($view_mode == 'full' && \Drupal::currentUser()
    ->hasPermission('access embedded child view')) {
    static $depth = 0;

    // Make sure we don't go through more than 3 iterations to prevent memory or call stack errors.
    if ($depth++ < 3) {

      // Get the arguments to send to the view. This should allow other view arguments to work.
      $current_path = \Drupal::service('path.current')
        ->getPath();
      $arguments = explode('/', $current_path);

      // First arg will be 'node', the second will be the node id, so remove them.
      array_shift($arguments);
      array_shift($arguments);
      if ($view = Views::getView($node->nh_children_view)) {

        // If we want a title, add the following:
        // $title = $view->getTitle();
        // $view->setTitle('$title'); might work
        // $build['entity_hierarchy_views_embed']['#prefix'] = '<h2 id="hierarchy-title" class ="views-title">'.$title.'</h2>';
        $display = @$node->nh_children_view_display ? @$node->nh_children_view_display : 'default';
        $view
          ->setDisplay($display);
        $view
          ->setArguments($arguments);
        $build['entity_hierarchy_views_embed'] = $view
          ->render();
        $build['entity_hierarchy_views_embed']['#weight'] = 1001;
      }
    }
  }
}