public function AccessSchemeEntityController::delete in Access Control Kit 7

Deletes an access scheme from the database.

Parameters

int $sid: The scheme ID.

Return value

int Status constant indicating deletion.

File

./access_scheme_entity_controller.inc, line 208

Contains the access scheme entity controller.

Class

AccessSchemeEntityController

Provides the entity controller for access schemes.

Code

public function delete($sid) {
  $transaction = db_transaction();
  try {
    $scheme = entity_load_unchanged('access_scheme', $sid);
    if ($scheme) {

      // Delete all access grants in the scheme.
      $gids = db_query('SELECT gid FROM {access_grant} WHERE scheme = :scheme', array(
        ':scheme' => $scheme->machine_name,
      ))
        ->fetchCol();
      foreach ($gids as $gid) {
        access_grant_delete($gid);
      }

      // Detach any access handlers for this scheme.
      db_delete('access_handler')
        ->condition('scheme', $scheme->machine_name)
        ->execute();

      // Delete the access scheme definition.
      db_delete('access_scheme')
        ->condition('sid', $sid)
        ->execute();

      // Notify the Field API and other interested modules of the deletion.
      field_attach_delete_bundle('access_grant', $scheme->machine_name);
      module_invoke_all('access_scheme_delete', $scheme);
      module_invoke_all('entity_delete', $scheme, 'access_scheme');
      cache_clear_all();
      access_scheme_static_reset();
    }
    return SAVED_DELETED;
  } catch (Exception $e) {
    $transaction
      ->rollback();
    watchdog_exception('access', $e);
    throw $e;
  }
}