function taxonomy_term_page

Menu callback; displays all nodes associated with a term.

Parameters

Drupal\taxonomy\Term $term: The taxonomy term entity.

File

drupal/core/modules/taxonomy/taxonomy.pages.inc, line 18

Page callbacks for the taxonomy module.

Code

function taxonomy_term_page(Term $term) {

  // Assign the term name as the page title.
  drupal_set_title($term
    ->label());

  // Build breadcrumb based on the hierarchy of the term.
  $current = (object) array(
    'tid' => $term->tid,
  );

  // @todo This overrides any other possible breadcrumb and is a pure hard-coded
  //   presumption. Make this behavior configurable per vocabulary or term.
  $breadcrumb = array();
  while ($parents = taxonomy_term_load_parents($current->tid)) {
    $current = array_shift($parents);
    $breadcrumb[] = l($current
      ->label(), 'taxonomy/term/' . $current->tid);
  }
  $breadcrumb[] = l(t('Home'), NULL);
  $breadcrumb = array_reverse($breadcrumb);
  drupal_set_breadcrumb($breadcrumb);
  drupal_add_feed('taxonomy/term/' . $term->tid . '/feed', 'RSS - ' . $term
    ->label());

  // If there is a menu link to this term, the link becomes the last part
  // of the active trail, and the link name becomes the page title.
  // Thus, we must explicitly set the page title to be the node title.
  $uri = $term
    ->uri();

  // Set the term path as the canonical URL to prevent duplicate content.
  drupal_add_html_head_link(array(
    'rel' => 'canonical',
    'href' => url($uri['path'], $uri['options']),
  ), TRUE);

  // Set the non-aliased path as a default shortlink.
  drupal_add_html_head_link(array(
    'rel' => 'shortlink',
    'href' => url($uri['path'], array_merge($uri['options'], array(
      'alias' => TRUE,
    ))),
  ), TRUE);
  $build['taxonomy_terms'] = taxonomy_term_view_multiple(array(
    $term
      ->id() => $term,
  ));
  if ($nids = taxonomy_select_nodes($term->tid, TRUE, config('node.settings')
    ->get('items_per_page'))) {
    $nodes = node_load_multiple($nids);
    $build['nodes'] = node_view_multiple($nodes);
    $build['pager'] = array(
      '#theme' => 'pager',
      '#weight' => 5,
    );
  }
  else {
    $build['no_content'] = array(
      '#prefix' => '<p>',
      '#markup' => t('There is currently no content classified with this term.'),
      '#suffix' => '</p>',
    );
  }
  return $build;
}