function Select::extend

Overrides ExtendableInterface::extend

File

core/lib/Drupal/Core/Database/Query/Select.php, line 329

Class

Select

Query builder for SELECT statements.

Namespace

Drupal\Core\Database\Query

Code

public function extend($extender_name) {
    $parts = explode('\\', $extender_name);
    $class = end($parts);
    $driver_class = $this->connection
        ->getDriverClass($class);
    if ($driver_class !== $class) {
        return new $driver_class($this, $this->connection);
    }
    return new $extender_name($this, $this->connection);
}