Transaction.php in Drupal driver for SQL Server and SQL Azure 8.2

Definition of Drupal\Driver\Database\sqlsrv\Transaction

Namespace

Drupal\Driver\Database\sqlsrv

File

drivers/lib/Drupal/Driver/Database/sqlsrv/Transaction.php

<?php

/**
 * @file
 * Definition of Drupal\Driver\Database\sqlsrv\Transaction
 */
namespace Drupal\Driver\Database\sqlsrv;

use Drupal\Core\Database\Transaction as DatabaseTransaction;
use Drupal\Core\Database\Connection as DatabaseConnection;
use Drupal\Core\Database\TransactionCommitFailedException as DatabaseTransactionCommitFailedException;
use Drupal\Core\Database\TransactionExplicitCommitNotAllowedException as DatabaseTransactionExplicitCommitNotAllowedException;
use Drupal\Driver\Database\sqlsrv\Settings\TransactionIsolationLevel as DatabaseTransactionIsolationLevel;
use Drupal\Driver\Database\sqlsrv\Settings\TransactionScopeOption as DatabaseTransactionScopeOption;
use Drupal\Driver\Database\sqlsrv\TransactionSettings as DatabaseTransactionSettings;
use PDO;
use Exception;
use PDOStatement;
class Transaction extends DatabaseTransaction {

  /**
   * A boolean value to indicate whether this transaction has been commited.
   *
   * @var Boolean
   */
  protected $commited = false;

  /**
   * A boolean to indicate if the transaction scope should behave sanely.
   *
   * @var DatabaseTransactionSettings
   */
  protected $settings = false;

  /**
   * Overriden to add settings.
   *
   * @param Connection $connection
   *
   * @param string $name
   *
   * @param DatabaseTransactionSettings $settings
   */
  public function __construct(Connection $connection, $name = null, DatabaseTransactionSettings $settings = null) {

    // Store connection and settings.
    $this->settings = $settings;
    $this->connection = $connection;

    // If there is no transaction depth, then no transaction has started. Name
    // the transaction 'drupal_transaction'.
    if (!($depth = $connection
      ->transactionDepth())) {
      $this->name = 'drupal_transaction';
    }
    elseif (empty($name)) {
      $this->name = 'savepoint_' . $depth;
    }
    else {
      $this->name = $name;
    }
    $this->connection
      ->pushTransaction($this->name, $settings);
  }

  /**
   * Overriden __destruct to provide some mental health (sane support).
   */
  public function __destruct() {
    if (!$this->settings
      ->Get_Sane()) {

      // If we rolled back then the transaction would have already been popped.
      if (!$this->rolledBack) {
        $this->connection
          ->popTransaction($this->name);
      }
    }
    else {

      // If we did not commit and did not rollback explicitly, rollback.
      // Rollbacks are not usually called explicitly by the user
      // but that could happen.
      if (!$this->commited && !$this->rolledBack) {
        $this
          ->rollback();
      }
    }
  }

  /**
   * Commits the transaction. Only available for SANE transactions.
   *
   * @throws DatabaseTransactionExplicitCommitNotAllowedException
   */
  public function commit() {

    // Insane transaction behaviour does not allow explicit commits.
    if (!$this->settings
      ->Get_Sane()) {
      throw new DatabaseTransactionExplicitCommitNotAllowedException();
    }

    // Cannot commit a rolledback transaction...
    if ($this->rolledBack) {
      throw new DatabaseTransactionCannotCommitAfterRollbackException();
    }

    // Mark as commited, and commit!
    $this->commited = true;

    // Finally pop it!
    $this->connection
      ->popTransaction($this->name);
  }

  /**
   * {@inheritdoc}
   */
  public function rollback() {
    $this->rolledBack = true;
    $this->connection
      ->rollback($this->name);
  }

}

Classes

Name	Description
Transaction