Connection::popCommittableTransactions

protected Connection::popCommittableTransactions()

protected function popCommittableTransactions() {
  // Commit all the committable layers.
  foreach (array_reverse($this->transactionLayers) as $name => $active) {
    // Stop once we found an active transaction.
    if ($active) {
      break;
    }

    // If there are no more layers left then we should commit.
    unset($this->transactionLayers[$name]);
    if (empty($this->transactionLayers)) {
      if (!$this->connection->commit()) {
        throw new TransactionCommitFailedException();
      }
    }
    else {
      $this->query('RELEASE SAVEPOINT ' . $name);
    }
  }
}