TransactionManager.php

<?php

declare (strict_types=1);
namespace Drupal\pgsql\Driver\Database\pgsql;

use Drupal\Core\Database\Transaction\ClientConnectionTransactionState;
use Drupal\Core\Database\Transaction\TransactionManagerBase;

/**
 * PostgreSql implementation of TransactionManagerInterface.
 */
class TransactionManager extends TransactionManagerBase {
  
  /**
   * {@inheritdoc}
   */
  protected function beginClientTransaction() : bool {
    return $this->connection
      ->getClientConnection()
      ->beginTransaction();
  }
  
  /**
   * {@inheritdoc}
   */
  protected function rollbackClientTransaction() : bool {
    $clientRollback = $this->connection
      ->getClientConnection()
      ->rollBack();
    $this->setConnectionTransactionState($clientRollback ? ClientConnectionTransactionState::RolledBack : ClientConnectionTransactionState::RollbackFailed);
    return $clientRollback;
  }
  
  /**
   * {@inheritdoc}
   */
  protected function commitClientTransaction() : bool {
    $clientCommit = $this->connection
      ->getClientConnection()
      ->commit();
    $this->setConnectionTransactionState($clientCommit ? ClientConnectionTransactionState::Committed : ClientConnectionTransactionState::CommitFailed);
    return $clientCommit;
  }

}