class Truncate in Drupal 9

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

SQLite doesn't support TRUNCATE, but a DELETE query with no condition has exactly the effect (it is implemented by DROPing the table).

Hierarchy

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

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/sqlite/Truncate.php, line 13

Namespace

Drupal\Core\Database\Driver\sqlite

class Truncate extends QueryTruncate {
  public function __toString() {

    // Create a sanitized comment string to prepend to the query.
    $comments = $this->connection
      ->makeComment($this->comments);
    return $comments . 'DELETE FROM {' . $this->connection
      ->escapeTable($this->table) . '} ';
  }

}

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 Query::execute	1
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 Truncate::__toString