public function RevisionsProperty::getValue in Multiversion 8

Same name and namespace in other branches

1. 8.2 src/Field/RevisionsProperty.php \Drupal\multiversion\Field\RevisionsProperty::getValue()

Gets the data value.

Return value

mixed The data value.

Overrides TypedData::getValue

File

src/Field/RevisionsProperty.php, line 20

Class

RevisionsProperty

The 'revisions' property for revision token fields.

Namespace

Drupal\multiversion\Field

Code

public function getValue($langcode = NULL) {

  /** @var \Drupal\Core\Entity\ContentEntityInterface $entity */
  $entity = $this
    ->getRoot()
    ->getValue();
  $workspace = isset($entity->workspace) ? $entity->workspace->entity : null;
  $branch = \Drupal::service('multiversion.entity_index.factory')
    ->get('multiversion.entity_index.rev.tree', $workspace)
    ->getDefaultBranch($entity
    ->uuid());
  $values = [];
  if (empty($branch) && !$entity->_rev->is_stub && !$entity
    ->isNew()) {
    list($i, $hash) = explode('-', $entity->_rev->value);
    $values = [
      $hash,
    ];
  }
  else {

    // We want children first and parent last.
    foreach (array_reverse($branch) as $rev => $status) {
      list($i, $hash) = explode('-', $rev);
      $values[] = $hash;
    }
  }
  if (empty($this->value)) {
    $this->value = [];
  }
  $count_value = count($this->value);
  $count_branch = count($values);
  if ($count_value == 0 && $count_branch == 0) {
    return [];
  }
  elseif ($count_value == 0 && $count_branch > 0 || count(array_intersect($values, $this->value)) == $count_value) {
    $this->value = $values;
  }
  return $this->value;
}