function LinearHistory::getParents

Overrides CheckpointListInterface::getParents

File

core/lib/Drupal/Core/Config/Checkpoint/LinearHistory.php, line 75

Class

LinearHistory

A chronological list of Checkpoint objects.

Namespace

Code

public function getParents(string $id) : \Traversable {
    if (!isset($this->checkpoints[$id])) {
        throw new UnknownCheckpointException(sprintf('The checkpoint "%s" does not exist', $id));
    }
    $checkpoint = $this->checkpoints[$id];
    while ($checkpoint->parent !== NULL) {
        $checkpoint = $this->get($checkpoint->parent);
        (yield $checkpoint->id => $checkpoint);
    }
}