导航和渲染首页文章列表

导航的逻辑是判断用户是否登录，登录了显示登录看到的信息，没登录显示注册和登录。

渲染文章列表需要先注册admin,然后在admin里加入几篇文章，然后在视图函数里提取文章数据，并渲染到模板。需要注意的是显示用户头像的时候，需要在用户头像路径前加上media/

index.py和logout.py

# 首页
def index(request):
    article_list = models.Article.objects.all()
    context = {
        'article_list': article_list,
    }
    return render(request, 'index.html', context=context)

# 注销
def logout(request):
    auth.logout(request)  # request.session.flush()
    return redirect(reverse('blog:login'))

index.html

<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>index</title> <link rel="stylesheet" href="/static/blog/bs/css/bootstrap.min.css"> <link rel="stylesheet" href="/static/blog/css/index.css"> <script src="/static/blog/js/jquery-3.3.1.js"></script> <script src="/static/blog/bs/js/bootstrap.min.js"></script> </head> <body> <!-- 导航区域 --> <nav class="navbar navbar-default"> <div class="container-fluid"> <!-- Brand and toggle get grouped for better mobile display --> <div class="navbar-header"> <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false"> <span class="sr-only">Toggle navigation</span> <span class="icon-bar"></span> <span class="icon-bar"></span> <span class="icon-bar"></span> </button> <a class="navbar-brand" href="#">博客园</a> </div> <!-- Collect the nav links, forms, and other content for toggling --> <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1"> <ul class="nav navbar-nav"> <li class="active"><a href="#">随笔<span class="sr-only">(current)</span></a></li> <li><a href="#">新闻</a></li> <li><a href="#">博文</a></li> </ul> <ul class="nav navbar-nav navbar-right"> {% if request.user.is_authenticated %} <li><a href="#"><span class="glyphicon glyphicon-user user_icon"></span>{ { request.user.username }}</a></li> <li class="dropdown"> <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false"><span class="caret"></span></a> <ul class="dropdown-menu"> <li><a href="#">修改密码</a></li> <li><a href="#">修改头像</a></li> <li><a href="{% url 'blog:logout' %}">注销</a></li> <li role="separator" class="divider"></li> <li><a href="#">Separated link</a></li> </ul> </li> {% else %} <li><a href="{% url 'blog:login' %}">登陆</a></li> <li><a href="{% url 'blog:register' %}">注册</a></li> {% endif %} </ul> </div><!-- /.navbar-collapse --> </div><!-- /.container-fluid --> </nav> <!-- 主体部分 --> <div class="container-fluid"> <div class="row"> <div class="col-md-3"> <div class="panel panel-warning"> <div class="panel-heading">Panel heading without title</div> <div class="panel-body"> Panel content </div> </div> <div class="panel panel-info"> <div class="panel-heading">Panel heading without title</div> <div class="panel-body"> Panel content </div> </div> <div class="panel panel-danger"> <div class="panel-heading">Panel heading without title</div> <div class="panel-body"> Panel content </div> </div> </div> <div class="col-md-6"> <div class="article_list"> {% for article in article_list %} <div class="article_item"> <h5><a href="">{ { article.title }}</a></h5> <div class="article_desc"> <span class="media-left"> <a href=""><img width="56" height="56" src="media/{ { article.user.avatar }}" alt="avatar"></a> </span> <span class="media-right"> { { article.desc }} </span> </div> <div class="small pub_info"> <span><a href="">{ { article.user.username }}</a></span> <span>发布于{ { article.created_time | date:'Y-m-d H:i' }}</span> <span class="glyphicon glyphicon-comment"></span>评论{ { article.comment_count }} <span class="glyphicon glyphicon-thumbs-up"></span>点赞{ { article.up_count }} </div> </div> <hr> {% endfor %} </div> </div> <div class="col-md-3"> <div class="panel panel-primary"> <div class="panel-heading">Panel heading without title</div> <div class="panel-body"> Panel content </div> </div> <div class="panel panel-default"> <div class="panel-heading">Panel heading without title</div> <div class="panel-body"> Panel content </div> </div> </div> </div> </div> </body> </html>