Remove print request from queue before deletion

    if not get_queue_by_id(qid):

        return

    log.info(f'Deleting queue with id {qid}')

    PrintRequest.update(queue_element = None).where(PrintRequest.queue_element == qid).execute()

    QueueElement.delete().where(QueueElement.queue == qid).execute()

    PrinterQueue.delete().where(PrinterQueue.queue == qid).execute()

    Queue.delete().where(Queue.id == qid).execute()