function _term_reference_tree_build_item in Taxonomy Term Reference Tree Widget 8

Same name and namespace in other branches

1. 7.2 term_reference_tree.widget.inc \_term_reference_tree_build_item()
2. 7 term_reference_tree.widget.inc \_term_reference_tree_build_item()

Builds a single item in the term reference tree widget.

This function returns an element with a checkbox for a single taxonomy term. If that term has children, it appends checkbox_tree_level element that contains the children. It is meant to be called recursively when the widget is built.

1 call to _term_reference_tree_build_item()

_term_reference_tree_build_level in ./term_reference_tree.module

Builds a level in the term reference tree widget.

File

./term_reference_tree.module, line 334

Code

function _term_reference_tree_build_item($element, $term, $form_state, $value, $max_choices, $parent_tids, $parent, $depth) {
  $leaves_only = FALSE;
  $langcode = \Drupal::languageManager()
    ->getCurrentLanguage()
    ->getId();
  $t = NULL;
  if (\Drupal::moduleHandler()
    ->moduleExists('locale') && !empty($term->tid)) {
    $t = \Drupal::entityTypeManager()
      ->getStorage('taxonomy_term')
      ->load($term->tid);
    if ($t && $t
      ->hasTranslation($langcode)) {
      $term_name = $t
        ->getTranslation($langcode)
        ->label();
    }
  }
  if (empty($term_name)) {
    $term_name = $term->name;
  }
  $container = [
    '#type' => 'checkbox_tree_item',
    '#max_choices' => $max_choices,
    '#leaves_only' => $leaves_only,
    '#term_name' => $term_name,
    '#level_start_minimized' => FALSE,
    '#select_parents' => $element['#select_parents'],
    '#depth' => $depth,
  ];
  if (!$element['#leaves_only'] || count($term->children) == 0) {
    $e = [
      '#type' => $max_choices == 1 ? 'radio' : 'checkbox',
      '#title' => $term_name,
      '#on_value' => $term->tid,
      '#off_value' => 0,
      '#return_value' => $term->tid,
      '#parent_values' => $parent_tids,
      '#default_value' => isset($value[$term->tid]) ? $term->tid : NULL,
      '#attributes' => isset($element['#attributes']) ? $element['#attributes'] : NULL,
      '#ajax' => isset($element['#ajax']) ? $element['#ajax'] : NULL,
    ];
    if (is_array($e)) {
      if ($e['#type'] == 'radio') {
        $parents_for_id = array_merge($element['#parents'], [
          $term->tid,
        ]);
        $e['#id'] = Html::getId('edit-' . implode('-', $parents_for_id));
        $e['#parents'] = array_merge($element['#parents'], [
          'wiget',
        ]);
      }
    }
  }
  else {
    $e = [
      '#type' => 'checkbox_tree_label',
      '#value' => $term_name,
    ];
  }
  $container[$term->tid] = $e;
  if (($depth + 1 <= $element['#max_depth'] || !$element['#max_depth']) && property_exists($term, 'children') && count($term->children) > 0) {
    $parents = $parent_tids;
    $parents[] = $term->tid;
    $container[$term->tid . '-children'] = _term_reference_tree_build_level($element, $term, $form_state, $value, $max_choices, $parents, $depth + 1);
    $container['#level_start_minimized'] = $container[$term->tid . '-children']['#level_start_minimized'];
  }
  return $container;
}