public function SelectExtender::extend in Drupal 8

Same name and namespace in other branches

1. 9 core/lib/Drupal/Core/Database/Query/SelectExtender.php \Drupal\Core\Database\Query\SelectExtender::extend()

Enhance this object by wrapping it in an extender object.

Parameters

$extender_name: The fully-qualified name of the extender class, without the leading '\' (for example, Drupal\my_module\myExtenderClass). The extender name will be checked against the current database connection to allow driver-specific subclasses as well, using the same logic as the query objects themselves.

Return value

\Drupal\Core\Database\Query\ExtendableInterface The extender object, which now contains a reference to this object.

Overrides ExtendableInterface::extend

File

core/lib/Drupal/Core/Database/Query/SelectExtender.php, line 220

Class

SelectExtender

The base extender class for Select queries.

Namespace

Drupal\Core\Database\Query

Code

public function extend($extender_name) {
  $class = $this->connection
    ->getDriverClass($extender_name);
  return new $class($this, $this->connection);
}