class Truncate in Drupal 9

PostgreSQL implementation of \Drupal\Core\Database\Query\Truncate.

Hierarchy

• class \Drupal\Core\Database\Query\Query implements PlaceholderInterface
  • class \Drupal\Core\Database\Query\Truncate
    • class \Drupal\Core\Database\Driver\pgsql\Truncate

1 file declares its use of Truncate

Truncate.php in core/modules/system/tests/modules/driver_test/src/Driver/Database/DrivertestPgsql/Truncate.php

3 string references to 'Truncate'

Connection::getDriverClass in core/lib/Drupal/Core/Database/Connection.php

Gets the driver-specific override class if any for the specified class.

Connection::truncate in core/lib/Drupal/Core/Database/Connection.php

Prepares and returns a TRUNCATE query object.

ConnectionTest::providerGetDriverClass in core/tests/Drupal/Tests/Core/Database/ConnectionTest.php

Data provider for testGetDriverClass().

File

core/lib/Drupal/Core/Database/Driver/pgsql/Truncate.php, line 10

Namespace

Drupal\Core\Database\Driver\pgsql

class Truncate extends QueryTruncate {

  /**
   * {@inheritdoc}
   */
  public function execute() {
    $this->connection
      ->addSavepoint();
    try {
      $result = parent::execute();
    } catch (\Exception $e) {
      $this->connection
        ->rollbackSavepoint();
      throw $e;
    }
    $this->connection
      ->releaseSavepoint();
    return $result;
  }

}

Members

Name	Modifiers	Type	Description	Overrides
Query::$comments	protected	property	An array of comments that can be prepended to a query.
Query::$connection	protected	property	The connection object on which to run this query.
Query::$connectionKey	protected	property	The key of the connection object.
Query::$connectionTarget	protected	property	The target of the connection object.
Query::$nextPlaceholder	protected	property	The placeholder counter.
Query::$queryOptions	protected	property	The query options to pass on to the connection object.
Query::$uniqueIdentifier	protected	property	A unique identifier for this query object.
Query::comment	public	function	Adds a comment to the query.
Query::getComments	public	function	Returns a reference to the comments array for the query.
Query::getConnection	public	function	Gets the database connection to be used for the query.
Query::nextPlaceholder	public	function	Gets the next placeholder value for this query object. Overrides PlaceholderInterface::nextPlaceholder
Query::uniqueIdentifier	public	function	Returns a unique identifier for this object. Overrides PlaceholderInterface::uniqueIdentifier
Query::__clone	public	function	Implements the magic __clone function.	1
Query::__sleep	public	function	Implements the magic __sleep function to disconnect from the database.
Query::__wakeup	public	function	Implements the magic __wakeup function to reconnect to the database.
Truncate::$table	protected	property	The table to truncate.
Truncate::compile	public	function
Truncate::compiled	public	function
Truncate::execute	public	function	Executes the TRUNCATE query. Overrides Truncate::execute
Truncate::__construct	public	function	Constructs a Truncate query object. Overrides Query::__construct
Truncate::__toString	public	function	Implements PHP magic __toString method to convert the query to a string. Overrides Query::__toString	1