新闻网站项目django--首页

models.py（与首页相关的部分）：

# 分类表
class Category(models.Model):
    name = models.CharField(max_length=40, null=False)  # 分类名

    def __str__(self):
        return self.name


# 文章表
class Article(models.Model):
    title = models.CharField(max_length=100, null=False)  # 标题
    intro = models.CharField(max_length=1000)  # 导语
    abstract = models.TextField()  # 摘要
    category = models.ForeignKey(Category, related_name="cate") #连接分类表的外键，多对一关系
    content = models.TextField(null=False)  # 内容
    publish_time = models.DateTimeField(null=False, default=now)  # 发布时间
    image = models.FileField(upload_to='article_image')  # 文章配图
    source_link = models.CharField(max_length=200)  # 原文链接
    author_name = models.CharField(max_length=100, null=False)  # 作者名字
    author_avatar = models.FileField(upload_to='author_avatar')  # 作者头像
    author_desc = models.CharField(max_length=100, null=False)  # 作者签名

    def __str__(self):
        return self.title


# 精选文章
class Best(models.Model):
    select_article = models.ForeignKey(Article, related_name='select_article')  # 被精选的文章
    SELECT_REASON = (
        ('今日新闻', '今日新闻'),
        ('首页推荐', '首页推荐'),
        ('编辑推荐', '编辑推荐')
    )
    select_reason = models.CharField(choices=SELECT_REASON, max_length=50, null=False)  # 精选的理由

    def __str__(self):
        return self.select_reason + '-' + self.select_article.title


# 用户信息表
class UserProfile(models.Model):
    belong_to = models.OneToOneField(to=User, related_name="profile")  # 所属用户
    avatar = models.FileField(upload_to='avatar')  # 用户头像

    def __str__(self):
        return self.belong_to.username

views.py：

def index(request):
    cates = Category.objects.all().order_by("-id") #分类列表

    todaynew_big = Best.objects.filter(select_reason="今日新闻")[0].select_article #取出一篇今日新闻作为大标题
    todaynew = Best.objects.filter(select_reason="今日新闻")[:3]
    todaynew_top3 = [i.select_article for i in todaynew]                          #取出三篇今日新闻

    index_recommend = Best.objects.filter(select_reason="首页推荐")[:4]
    index_recommendlist = [i.select_article for i in index_recommend]   #取出四篇首页推荐

    editor_recommendtop3 = Best.objects.filter(select_reason="编辑推荐")[:3]
    editor_recommendtop3list = [i.select_article for i in editor_recommendtop3] #取出三篇编辑推荐作为大标题

    editor_recommend = Best.objects.filter(select_reason="编辑推荐")[3:10]
    editor_recommendlist = [i.select_article for i in editor_recommend]     #再取出七篇编辑推荐

    article_list = Article.objects.all().order_by("-publish_time") #取出所有文章
    pagerobot = Paginator(article_list,5)                         #创建分页器，每页限定五篇文章
    page_num = request.GET.get("page",1)                            #取到当前页数
    try:
        article_list = pagerobot.page(page_num)                   #一般情况下返回当前页码下的文章
    except EmptyPage:
        article_list = pagerobot.page(pagerobot.num_pages)        #如果不存在该业，返回最后一页
    except PageNotAnInteger:
        article_list = pagerobot.page(1)                          #如果页码不是一个整数，返回第一页
    context={}
    context={
      "cates":cates,
      "todaynew_big":todaynew_big,
      "todaynew_top3":todaynew_top3,
      "index_recommendlist":index_recommendlist,
      "editor_recommendtop3list":editor_recommendtop3list,
      "editor_recommendlist":editor_recommendlist,
      "article_list":article_list
    }

    print(article_list.paginator.page_range)
    return render(request,'index.html',context=context)

模板 index.html：

<!DOCTYPE html>
{% load staticfiles %}
<html>
<head>
<meta charset="utf-8">
<title>首页</title>
<link rel="stylesheet" href="{% static 'css/semantic.css' %}" media="screen" title="no title" charset="utf-8">
<link rel="stylesheet" href="{% static 'css/index.css' %}" media="screen" title="no title" charset="utf-8">
</head>
<body>
<div class="ui red basic segment topmenu">
<div class="ui borderless menu container" style="border:0;box-shadow:none;">
<div class="header item" style="margin-right:10px;">
<div class="ui image">
<img src="{%static 'images/index/zhiribao.png' %}" alt="" />
</div>
</div>
<div class="item" style="margin-right:10px;">
<a href="{% url 'index' %}">首页</a>
</div>
{% for cate in cates %}
<div class="item" style="margin-right:10px;">
<a href="/category/{{cate.id}}">{{cate.name}}</a>
</div>
{% endfor%}

<div class="right menu login">
{% if request.user.is_authenticated %}
<div class="item">
<a href="{% url 'profile' %}"><div class="ui image">
<img src="/upload/{{ request.user.profile.avatar }}" style="height:26px;24px;" alt="" />
</div>
<p style="margin-right:10px;margin-top:6px;color:black;">{{ request.user.username }}</p>
</a>

</div>
<div class="item">
<a href="{% url "logout" %}">
退出
</a>
</div>
{% else %}
<div class="item">
<a href="{% url 'login' %}"><div class="ui image">
<img src="{% static 'images/index/login.png' %}" alt="" />
</div>
<p style="margin-right:10px;margin-top:6px;color:black;">登录</p>
</a>

</div>
<div class="item">
<a href="{% url 'register' %}"> <div class="ui image">
<img src="{% static 'images/index/register.png' %}" alt="" />
</div>
<p style="color:black;">注册</p>
</a>
</div>
{% endif %}
</div>
</div>
</div>
<div class="ui basic segment body container">
<div class="ui basic segment container topcontent" style="border:none">
<div class="ui horizontal basic segments" style="border:none;">
<div class="ui basic segment topleft" style="background: url('/upload/{{todaynew_big.image}}');background-size:cover;background-repeat: no-repeat;" >
<a href="#" class="ui circular red button" style="80px;height:35px;padding:0px;padding-top:10px;">今日热闻</a>
<div class="ui basic segment title">
<a href="/detail/{{todaynew_big.id}}"><p style="color:#fff;font-size:28px;margin-left:8px;">{{todaynew_big.title}}</p></a>
</div>
</div>
<div class="ui basic segment topright" >
{% for todaynew in todaynew_top3 %}
<div class="ui segment" style="border:solid red 1px;">
<a href="/detail/{{todaynew.id}}">
<p>
{{todaynew.title}}
</p>
</a>
<span style="color:rgb(195, 200, 194)">{{todaynew.publish_time | date:"Y-m-d"}}</span>
</div>
{% endfor %}
</div>
</div>
</div>

<div class="ui grid container">
{% for index_recommend in index_recommendlist %}
<div class="four wide column">
<a href="/detail/{{index_recommend.id}}">
<div class="ui basic segment" style="background:url('/upload/{{index_recommend.image}}');background-size: cover;
background-repeat: no-repeat;">
<div class="ui basic segment title">
<p style="color:#fff;font-size:18px;margin-left:0px;">{{index_recommend.title}}</p>
</div>
</a>
</div>
</div>
{% endfor %}
</div>

<div class="ui horizontal basic segments bottomcontent">
<div class="ui segment bottomleft" style="border:none;box-shadow:none;">
{% for article in article_list %}
<div class="ui segment article" style="border:none;box-shadow:none;">
<div class="ui image">
<img src="/upload/{{article.image}}" alt="" />
</div>
<div class="ui segment articlecontent" style="border:none;box-shadow:none;">
<a href="/detail/{{article.id}}"><h3><b>{{article.title}}</b></h3></a>
<p>
{{article.abstract}}
</p>
<span style="color:rgb(206, 208, 204);position:absolute;transform:translate(0,100%);bottom:10%">{{article.publish_time | date:"Y-m-d"}}</span>
</div>
</div>
{% endfor %}
<div class="ui pagination menu" style="margin-left:50%;transform:translate(-50%,0%);">
{% if article_list.has_previous %}
<a href="?page={{article_list.previous_page_number}}" class="item"><i class="icon red left caret"></i></a>
{% else %}
<a href="?page={{article_list.start_index}}" class="disabled item"><i class="icon left caret"></i></a>
{% endif %}

{% for pagenumber in article_list.paginator.page_range %}
{% ifequal pagenumber article_list.number %}
<a href="?page={{ pagenumber }}" class="active item" style="background-color: red; color:white">
{{ pagenumber }}
</a>
{% else %}
<a href="?page={{ pagenumber }}" class="item">
{{ pagenumber }}
</a>
{% endifequal %}
{% endfor %}

{% if article_list.has_next %}
<a href="?page={{article_list.next_page_number}}" class="item"><i class="icon red right caret"></i></a>
{% else %}
<a href="?page={{article_list.paginator.num_pages}}" class="disabled item"><i class="icon right caret"></i></a>
{% endif %}
</div>
</div>
<div class="ui segment bottomright" style="border:none;box-shadow:none;">
<div class="ui red segment best">
<h4 class="ui center aligned header"><b>编辑推荐</b></h4>
{% for editor_recommendtop3 in editor_recommendtop3list %}

<div class="ui segment top3" style="background:url('/upload/{{editor_recommendtop3.image}}');
background-size:cover;background-repeat:no-repeat;border-radius:0;">
<div class="sidebutton">
<img src="{% static 'images/index/redtag.png' %}" alt="" />
<p>Top{{ forloop.counter }}</p>
</div>

<div class="ui basic segment title" style="height:40px;padding-top:2px;">
<p style="font-size:14px;margin-left:0px;"><a href="/detail/{{editor_recommendtop3.id}}" style="color:#fff;">{{editor_recommendtop3.title}}</a></p>
</div>

</div>

{% endfor %}

{% for editor_recommend in editor_recommendlist %}

<p>
<a href="/detail/{{editor_recommend.id}}">
{{editor_recommend.title}}
</a>
</p>

<span>{{editor_recommend.publish_time | date:"Y-m-d"}}</span>
</div>

{% endfor %}
<div class="ui image">
<img src="{% static 'images/index/ad.png' %}" alt="" style="300px;"/>
</div>
</div>
</div>
</div>
</div>
<div class="ui basic segment bottomblack">
<div class="ui image">
<img src="{% static 'images/index/white_zhiribao.png' %}" alt="" />
</div>
<p style="color:red;margin-top:50px;font-size:20px;">
关于我们<span style="color:rgb(143, 143, 143)">｜</span>加入我们<span style="color:rgb(143, 143, 143)">｜</span>联系我们｜寻求报道
</p>
<p style="color:white;font-size:20px;">
反馈建议:<span style="color:red;">124608760@qq.com</span>
</p>
<div class="ui basic segment wechat">
<img src="{% static 'images/index/qrcode.png' %}" style="margin-left:38px;"/>
<h2 class="ui header" style="color:rgb(255, 255, 255);margin-left:20px;">扫码关注微信号</h2>
</div>
<button type="button" name="button" class="ui circular red button backtotop">
<img src="{% static 'images/index/upicon.png' %}" style="position:absolute;left:18%;top:10%;">
<img src="{% static 'images/index/TOP.png' %}" style="position:absolute;left:18%;bottom:28%;">
</button>
</div>
<div class="ui basic segment bottomwhite">
<p>
Designed by Mugglecoding
</p>
<p>
Developed by XYX
</p>
<p style="position:absolute;right:250px;top:40px;">
京ICP备123878345号
</p>
</div>
</body>
</html>

css文件 index.css：

a{color: black}
.ui.red.basic.segment.topmenu{
  height: 100px;
  padding-left:140px;
  padding-right: 140px;
  border-bottom: 1px solid rgb(189, 189, 189);
}
.ui.borderless.menu.container > .item > a{
  color: black;
  font-weight: bold;
}
.ui.horizontal.basic.segments{
  box-shadow: none;
}
.ui.basic.segment.topleft{
  height:380px;
  width: 655px;
  border:none;
  padding-left: 35px;
  padding-top: 20px;
}
.ui.basic.segment.title{
  background: rgba(110, 110, 110,0.7);
  position: absolute;
  width: 100%;
  height: 70px;
  left:0;
  bottom: 0;
}
.ui.basic.segment.topright{
  height:380px;
  padding:0;
  border:none;
}
.ui.basic.segment.topright > .ui.segment{
  height: 118px;
  border-radius: 0;
  margin-left: 15px;
  padding-top: 30px;
  padding-left: 50px;
}
.four.wide.column > .ui.basic.segment{
 height: 150px;
}
.ui.horizontal.basic.segments.bottomcontent{
  padding-top: 20px;
  border-radius: 0;
  border-right: none;
  border-left: none;
  border-bottom: none;
}
.ui.segment.bottomleft{
  width: 700px;

}
.ui.segment.bottomright{
  width: 100px;
}
.ui.segment.article{
 padding: 0;
 border-radius: 0;
 height: 200px;
 width: 820px;
}
.ui.segment.article > .ui.image{
  float: left;
  margin: 0;
}
.ui.segment.articlecontent{
  position: relative;
  margin: 0;
  padding: 0;
  width: 400px;
  height: 200px;
  float: right;
  padding-left: 10px;
}
.ui.segment.articlecontent > p{
  color:rgb(206, 208, 204)
}
.ui.segment.article > .ui.image >img{
  height: 200px;
  width:400px;
}
.ui.red.segment.best{
  border-left:none;
  border-right:none;
  border-bottom:none;
  box-shadow:none;
  border-radius: 0;
  padding-left: 0;
  padding-right: 0;
}
.ui.segment.top3{
  height: 120px;
  padding-top: 0;
  position: relative;
  border: none;
  box-shadow: none;
}
.sidebutton > p{
  position: absolute;
  top:0;
  left:20px;
  color:white;
}
.ui.segment.bestlast{
  border-radius: 0;
  height: 60px;
  padding-top: 0;
  border: none;
  box-shadow: none;
}
.ui.segment.bestlast > img{
  position: absolute;
  top:4px;
  left:0;
}
.ui.segment.bestlast > p{
  font-size: 12px;
}
.ui.segment.bestlast > span{
  font-size: 12px;
  color: rgb(206, 208, 204);
  position: absolute;
  bottom: 0;
}
.ui.basic.segment.bottomblack{
  height: 400px;
  background-color: rgb(50,50,50);
  padding-left: 250px;
  padding-top: 100px;
}
.ui.circular.red.button.backtotop{
  height: 60px;
  position: absolute;
  transform: translate(-50%,-50%);
  left: 50%;
  bottom:-15%;
}
.ui.basic.segment.wechat{
  position: absolute;
  top:80px;
  right: 250px;
  margin-top: 0;
}
.ui.basic.segment.bottomwhite{
  padding-left: 250px;
  border-bottom: 2px solid red;
}
.ui.basic.segment.bottomwhite > p{
  font-size: 20px;
}

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 十三、结构类型（1）——枚举
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原文地址：https://www.cnblogs.com/xyxpython/p/6696915.html