private function HierarchyManager::hierarchyNodeParentFormItems in Entity Reference Hierarchy 8

Build the parent form item for a given parent node object. This function is called iteratively in addHierarchyFormElement method to build a dropdown list of parents. We add a visible title (node title), the hierarchy id (hid), a parent node id (pid), a child weight (cweight), a parent weight (pweight), and a delete flag to each dropdown item.

The dropdown element to select the desired title is added by the method hierarchyGetParentSelector.

Parameters

\Drupal\node\NodeInterface $node: The node being built or being edited

$parent: The parent object

Return value

array The array containg all the important information associated with the given dropdown item.

See also

addHierarchyFormElement

hierarchyGetParentSelector

1 call to HierarchyManager::hierarchyNodeParentFormItems()

HierarchyManager::addHierarchyFormElement in src/HierarchyManager.php

Builds the elements of the hierarchy form to be included on the node form.

File

src/HierarchyManager.php, line 281

Contains \Drupal\entity_hierarchy\HierarchyManager.

Class

HierarchyManager

Defines a hierarchy manager.

Namespace

Drupal\entity_hierarchy

Code

private function hierarchyNodeParentFormItems(NodeInterface $node, $parent) {

  // Wrap the item in a div for js purposes
  // Todo: change the dropdown selector to an autocomplete if it makes sense.
  $item = array(
    '#type' => 'fieldset',
    '#title' => t('Parent'),
    '#tree' => TRUE,
    '#prefix' => '<div class="entity_hierarchy-parent">',
    '#suffix' => '</div>',
  );

  // The parent node ID
  $pnid = $parent->pnid;

  // The node ID of the node being created or edited
  $nid = $node
    ->id();

  // If a node can be a child of another add a selector to pick the parent. Otherwise set the parent to 0.
  if ($this
    ->hierarchyCanBeChild($node)) {
    $item['pnid'] = $this
      ->hierarchyGetParentSelector($node
      ->getType(), empty($pnid) ? null : $pnid, empty($nid) ? null : $nid);
    $item['pnid']['#weight'] = -1;
  }
  else {
    $item['pnid'] = array(
      '#type' => 'value',
      '#value' => 0,
    );
  }
  $item['hid'] = array(
    '#type' => 'value',
    '#value' => isset($parent->hid) ? $parent->hid : NULL,
  );
  $item['cweight'] = array(
    '#type' => 'value',
    '#value' => isset($parent->cweight) ? $parent->cweight : NULL,
  );
  $item['pweight'] = array(
    '#type' => 'value',
    '#value' => isset($parent->pweight) ? $parent->pweight : NULL,
  );
  if (!empty($parent->hid)) {
    $item['remove'] = array(
      '#type' => 'checkbox',
      '#title' => t('Remove this parent'),
      '#weight' => 100,
    );
  }
  return $item;
}