public function Connection::rollBack in Drupal 9

Same name in this branch

1. 9 core/lib/Drupal/Core/Database/Connection.php \Drupal\Core\Database\Connection::rollBack()
2. 9 core/lib/Drupal/Core/Database/Driver/mysql/Connection.php \Drupal\Core\Database\Driver\mysql\Connection::rollBack()

Rolls back the transaction entirely or to a named savepoint.

This method throws an exception if no transaction is active.

Parameters

string $savepoint_name: (optional) The name of the savepoint. The default, 'drupal_transaction', will roll the entire transaction back.

Throws

\Drupal\Core\Database\TransactionOutOfOrderException

\Drupal\Core\Database\TransactionNoActiveException

Overrides Connection::rollBack

See also

\Drupal\Core\Database\Transaction::rollBack()

File

core/lib/Drupal/Core/Database/Driver/mysql/Connection.php, line 436

Class

Connection

MySQL implementation of \Drupal\Core\Database\Connection.

Namespace

Drupal\Core\Database\Driver\mysql

Code

public function rollBack($savepoint_name = 'drupal_transaction') {

  // MySQL will automatically commit transactions when tables are altered or
  // created (DDL transactions are not supported). Prevent triggering an
  // exception to ensure that the error that has caused the rollback is
  // properly reported.
  if (!$this->connection
    ->inTransaction()) {

    // On PHP 7 $this->connection->inTransaction() will return TRUE and
    // $this->connection->rollback() does not throw an exception; the
    // following code is unreachable.
    // If \Drupal\Core\Database\Connection::rollBack() would throw an
    // exception then continue to throw an exception.
    if (!$this
      ->inTransaction()) {
      throw new TransactionNoActiveException();
    }

    // A previous rollback to an earlier savepoint may mean that the savepoint
    // in question has already been accidentally committed.
    if (!isset($this->transactionLayers[$savepoint_name])) {
      throw new TransactionNoActiveException();
    }
    trigger_error('Rollback attempted when there is no active transaction. This can cause data integrity issues.', E_USER_WARNING);
    return;
  }
  return parent::rollBack($savepoint_name);
}