在烧瓶中定型活动元素菜单

时间:2014-03-04 13:17:17

标签: flask

我在烧瓶中有以下模板结构:

templates/
  /posts
    list.html
  base.html
  index.html

我的base.html:

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title>ITV</title>
    <!-- Latest compiled and minified CSS -->
    <link rel="stylesheet" href="//netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css">
    <link rel="stylesheet" href="{{ url_for('static', filename='css/main.css') }}">

    <!-- Latest compiled and minified JavaScript -->
    <script src="//netdna.bootstrapcdn.com/bootstrap/3.1.1/js/bootstrap.min.js"></script>
</head>

<body>

{%- block topbar -%}
    <nav class="navbar navbar-default navbar-static-top" role="navigation">
      <!-- We use the fluid option here to avoid overriding the fixed width of a normal container within the narrow content columns. -->
      <div class="container-fluid">
        <div class="navbar-header">
          <a class="navbar-brand" href="/">САПР</a>
        </div>

        <!-- Collect the nav links, forms, and other content for toggling -->
        <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-8">
          <ul class="nav navbar-nav">
            <li class="active"><a href="/">Головна</a></li>
            <li><a href="/posts">Новини</a></li>
            <li><a href="/schedue">Розклад занять</a></li>
          </ul>
        </div><!-- /.navbar-collapse -->
      </div>
    </nav>
{%- endblock -%}

<div class="container">
    <div class="content">
        {% block page_header %}{% endblock %}
        {% block content %}{% endblock %}
    </div>
</div>
</body>
</html>

我可以渲染模板,例如:render_template('posts / list.html'),它扩展了我的base.html

我的list.html:

{% extends "base.html" %}

{% block content %}

    Posts
{% endblock %}

如何在base.html中设置活动元素菜单

        <li class="active"><a href="/">Головна</a></li>
        <li><a href="/posts">Новини</a></li>
        <li><a href="/schedue">Розклад занять</a></li>

当我渲染list.html时,无法将数据直接传递到base.html?

2 个答案:

答案 0 :(得分:12)

在Flask中,模板中的request变量为available by default,因此您只需检查request.path中的base.html并调整链接即可。

<li {% if request.path == '/' %}class="active"{% endif %}>
     <a href="/">Головна</a>
</li>

答案 1 :(得分:0)

也可以使用三元...只是短一点而且更好

<li {{ 'class="active"' if request.path == '/' else '' }}>
     <a href="/">Головна</a>
</li>