function SelectExtender::extend

Same name and namespace in other branches
  1. 11.x core/lib/Drupal/Core/Database/Query/SelectExtender.php \Drupal\Core\Database\Query\SelectExtender::extend()
  2. 10 core/lib/Drupal/Core/Database/Query/SelectExtender.php \Drupal\Core\Database\Query\SelectExtender::extend()
  3. 8.9.x core/lib/Drupal/Core/Database/Query/SelectExtender.php \Drupal\Core\Database\Query\SelectExtender::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) {
  // We cannot call $this->query->extend(), because with multiple extenders
  // you will replace all the earlier extenders with the last extender,
  // instead of creating list of objects that extend each other.
  $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);
}

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