controller.py 文件源码

def set_language(language):
    """
    set a new language as active for the currently logged in User
    :param language: the new language
    :return: redirect to referrer
    """

    if language in ("de", "en"):
        # only store language in database when the User is logged in
        if current_user.is_authenticated:
            current_user.language = language
            db.session.commit()

        session["language"] = language
        return redirect(request.referrer or url_for("mod_index.index"))
    else:
        abort(404)