import pghistory

def setup_pghistory_context():
    """
    Set up pghistory context middleware to track request information.
    This function configures what contextual information is stored
    with each history record.
    """
    pghistory.context(lambda request: {
        'user': str(request.user) if request.user.is_authenticated else None,
        'ip': request.META.get('REMOTE_ADDR'),
        'user_agent': request.META.get('HTTP_USER_AGENT'),
        'session_key': request.session.session_key
    })