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一 编辑mysite/article/templatetags/article_tags.py，增加自定义标签
# template包含了很多与模板有关的类和方法
from django import template
# Library是template类的一个方法
# register包含了simple_tag方法
# 它将用于自定义标签
register = template.Library()
from article.models import ArticlePost
# 表明下面的代码是自定义的simple_tag
@register.simple_tag
def total_articles():
# 返回文章对象的查询结果
return ArticlePost.objects.count()
@register.simple_tag
def author_total_articles(user):
# 返回某个作者的文章总数
return user.article.count()
# 用装饰器声明自定义标签，通过参数确定所渲染的模板文件
@register.inclusion_tag('article/list/latest_articles.html')
# 在具体使用标签时，会通过n传参
def latest_articles(n=5):
# 按照发布时间倒排序，排序个数由n来决定
latest_articles = ArticlePost.objects.order_by("-created")[:n]
return {"latest_articles": latest_articles}二 新增模板文件mysite/templates/article/list/latest_articles.html
<ul>
{% for article in latest_articles %}
<li>
<a href="{{ article.get_url_path }}">{{ article.title }}</a>
</li>
{% endfor %}
</ul>三 mysite/templates/article/list/article_detail.html引入定定义标签
{% extends "base.html" %}
{% load staticfiles %}
{% load article_tags %}
{% block title %}{{ article.title }}{% endblock %}
{% block content %}
<!-- with发起一个赋值操作，它的结尾部分是endwith，total_likes分别为点赞用户总数，total_likes在
这两部分圈定的范围内有效-->
{% with total_likes=article.users_like.count users_like=article.users_like.all %}
<div class="container">
<div class="col-md-9">
<header>
<h1>{{ article.title }}</h1>
<p>
<a href="{% url 'article:author_articles' article.author.username %}">
{{ article.author.username }}
</a>
<!-- pluralize的作用：如果total_likes为0或复数，则显示的是likes，如果total_likes为1，则显示like-->
<span style="margin-left:20px" class="glyphicon glyphicon-thumbs-up">{{ total_likes }}like{{ total_likes | pluralize }}</span>
<!-- 该文章总的访问此时-->
<span style="margin-left: 20px">{{ total_views }}view{{ total_views | pluralize }}</span>
</p>
</header>
<link rel="stylesheet" href="{% static 'editor/css/editormd.preview.css' %}"/>
<div id='editormd-view'>
<textarea id="append-test" style="display:none;">
{{ article.body }}
</textarea>
</div>
<div>
<!--点赞功能实现-->
<p class="text-center">
<a onclick="like_article({{article.id}}, 'like')" href="#"><span class="glyphicon glyphicon-thumbs-up">like</span></a>
<a onclick="like_article({{article.id}}, 'unlike')" href="#"><span style="margin-left: 15px;"
class="glyphicon glyphicon-thumbs-down">unlike</span></a>
</p>
</div>
<div>
<p class="text-center"><strong>点赞本文的读者</strong></p>
{% for user in article.users_like.all %}
<p class="text-center">{{ user.username }}</p>
{% empty %}
<p class="text-center">还没有人对此文章表态</p>
{% endfor %}
</div>
<!--以下是评论功能-->
<hr>
<div>
<h3><span class="glyphicon glyphicon-bullhorn"></span>本文有{{ article.comments.count }}评论</h3>
{% for comment in article.comments.all %}
<div>
<p><strong>{{ comment.commentator }}</strong>说：</p>
<p style="margin-left:40px;">{{ comment.body }}</p>
</div>
{% empty %}
<p>没有评论</p>
{% endfor %}
<h3><span class="glyphicon glyphicon-send"></span>看文章，发评论，不要沉默</h3>
<form action="." method="post" class="form-horizontal" role="form">{% csrf_token %}
<div class="form-group">
<label for="inputEmail3" class="col-sm-2 control-label">评论员</label>
<div class="col-sm-10">
{{ comment_form.commentator}}
</div>
</div>
<div class="form-group">
<label for="inputEmail3" class="col-sm-2 control-label">评论</label>
<div class="col-sm-10">
{{ comment_form.body }}
</div>
</div>
<div class="form-group">
<div class="col-sm-offset-2 col-sm-10">
<p><input type="submit" name="" value="发评论" class="btn btn-primary"></p>
</div>
</div>
</form>
</div>
</div>
<div class="col-md-3">
<p class="text-center">
<h3>最受欢迎文章</h3></p>
<ol>
{% for article_rank in most_viewed %}
<li>
<a href="{{article_rank.get_url_path}}">{{ article_rank.title }}</a>
</li>
{% endfor %}
</ol>
<hr>
<p class="text-center">
<h3>最新文章</h3></p>
<div>{% latest_articles 4 %}</div>
</div>
</div>
<script src='{% static "js/jquery.js" %}'></script>
<script src='{% static "editor/lib/marked.min.js" %}'></script>
<script src='{% static "editor/lib/prettify.min.js" %}'></script>
<script src='{% static "editor/lib/raphael.min.js" %}'></script>
<script src='{% static "editor/lib/underscore.min.js" %}'></script>
<script src='{% static "editor/lib/sequence-diagram.min.js" %}'></script>
<script src='{% static "editor/lib/flowchart.min.js" %}''></script>
<script src='{% static "editor/lib/jquery.flowchart.min.js" %}'></script>
<script src='{% static "editor/editormd.js" %}'></script>
<script type="text/javascript" src="{% static 'js/layer.js'%}"></script>
<script type="text/javascript">
$(function(){
editormd.markdownToHTML("editormd-view", {
htmlDecode : "style,script,iframe", // you can filter tags decode
emoji : true,
taskList : true,
tex : true, // 默认不解析
flowChart : true, // 默认不解析
sequenceDiagram : true, // 默认不解析
});
});
function like_article(id,action){
$.ajax({
url: "{% url 'article:like_article' %}",
type: "POST",
data: {"id":id, "action":action},
success: function(e){
if(e=="1"){
layer.msg("感谢点赞");
window.location.reload();
}else{
layer.msg("我会继续努力");
window.location.reload();
}
},
});
}
</script>
{% endwith %}
{% endblock %}四 测试
