Same name and namespace in other branches

1. 10 core/lib/Drupal/Core/Config/Checkpoint/LinearHistory.php \Drupal\Core\Config\Checkpoint\LinearHistory::delete()

Deletes a checkpoint.

Parameters

string $id: The ID of the checkpoint to delete up to: only checkpoints after this one will remain.

Return value

$this

Overrides CheckpointListInterface::delete

File

core/lib/Drupal/Core/Config/Checkpoint/LinearHistory.php, line 118

Class

LinearHistory

A chronological list of Checkpoint objects.

Namespace

Drupal\Core\Config\Checkpoint

Code

public function delete(string $id) : static {
  if (!isset($this->checkpoints[$id])) {
    throw new UnknownCheckpointException(sprintf('Cannot delete a checkpoint with the ID "%s" as it does not exist', $id));
  }
  foreach ($this->checkpoints as $key => $checkpoint) {
    unset($this->checkpoints[$key]);
    if ($checkpoint->id === $id) {
      break;

    }
  }
  $first = reset($this->checkpoints);
  if ($first instanceof Checkpoint) {
    // Make sure the first checkpoint does not have a parent set.
    $fixed = new Checkpoint($first->id, $first->label, $first->timestamp, NULL);
    $this->checkpoints[$fixed->id] = $fixed;
  }
  $this->activeCheckpoint = end($this->checkpoints) ?: NULL;
  if (!empty($this->checkpoints)) {
    $this->state
      ->set(self::CHECKPOINT_KEY, $this->checkpoints);
  }
  else {
    $this->state
      ->delete(self::CHECKPOINT_KEY);
  }
  return $this;
}

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