Question

如果用户未登录，我想阻止用户查看导航栏上的某些链接。

我在模板中使用if语句来执行此操作。当我登录时，它会显示正确的链接集，但是当我退出时却没有。

它应该显示带有登录链接的ul。我做错了什么？

这是我的代码：

<html>
    <head>
            <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta/css/bootstrap.min.css" integrity="sha384-/Y6pD6FV/Vv2HJnA6t+vslU6fwYXjCFtcEpHbNJ0lyAFsXTsjBbfaDjzALeQsN6M" crossorigin="anonymous">


            {% block head %}
            {% endblock %}

    </head>

    <body>
    <style>

    ul, li {

        margin: 0px 14px;
    }

    </style>
        <nav class = "navbar fixed-top navbar-light bg-light justify-content-between flex-nowrap flex-row">


        <div class  = " container">


        <a class = "navbar-brand float-left" href = "{% url 'Identities:nest'%}">nest</a>


  {% if user.is_authenticated %}

            <ul class = "nav navbar-nav flex-row float-left ">

                        <li class = "nav-item "><a class = "nav-link" href = "{% url 'Identities:logout'%}">Sign Out</a></li>
                        <li class = "nav-item"><a class = "nav-link" href = "{% url 'Identities:view_profile' %}">view Identity </a></li>
                        <li class = "nav-item"><a class = "nav-link" href = "{% url 'Identities:edit_profile' %}">edit Identity </a></li>
            </ul>

{% else %}

            <ul class = "nav navbar-nav flex-row float-left ">

            <li class = "nav-item "><a class="nav-link" href = "{% url 'Identities:login'%}">Sign In</a></li>

            </ul>


    {% endif %}
        </div>

        </nav>

    {% block body %}

            {% endblock %}

    </body>

</html>

Answer 1

此示例将为匿名用户显示登录，为登录用户显示 logout ：

<nav>
<!--your code-->...
<div class="nav navbar-right">
{% if user.is_authenticated %} <!--check if the user is logged in-->
<a href="log-in-url">Log out</a>
{% else %} <!--if not logged in (Anonymous user)-->
    <a href="log-in-url">Log in</a>
{% endif %}
</div>
</nav>

Answer 2

将您的if语句更改为以下内容：

{% if request.user.is_authenticated %}

这应该可以解决你的问题。

如何阻止匿名用户访问我网站的某些部分？

2 个答案: