I am having bother determining why the next code is not working in Drupal 7. _queue_processor is a cron queue processor operate:

operate _queue_processor($uid) {

    $transaction = db_transaction();

    watchdog('debug', 'transaction created'); // This is not going to be referred to as.

    attempt {
      user_delete($uid);
    }
    catch (Exception $e) {
      // An issue occurred. Rollback transaction.
      $transaction->rollback();
      throw $e;
    }
    // Rollback deliberately.
    if (variable_get('some_var', FALSE)) {
      $transaction->rollback();
    }
}

The code by no means makes it previous the $transaction = db_transaction(); line. Nonetheless, if I take away the transaction and check out/catch, user_delete() is named simply tremendous, and the transaction that user_delete_multiple() creates inside itself works as effectively.

Is there one thing unsuitable with placing user_delete() inside a transaction? I do know it already makes use of one, however I would like to have the ability to run the deletion after which conditionally rollback afterwards, and I would fairly not do that by throwing an exception in an implementation of hook_user_delete() to drive rollback.

I’m utilizing MariaDB.

Replace: I by no means figured it out, so I throw a customized exception within the hook and catch it.