知识点

各个小模块点击以后有可能会发生跳转到对应的页面，这里主要有3个小模块，标签云、文章归档和文章的详情页面需要添加。主要思路是，点击后发生请求，后端获取到前端的请求再做出响应。

1 标签云详情页

前端请求的href【tags.html】

<li><a href='{% url "biaoqian" %}?tag={{ tag }}'>{{ tag }}</a></li>

请求到了路由【urls.py】

from django.conf.urls import url
from blog.views import biaoqian

urlpatterns = [
    url(r'^biaoqian$', biaoqian, name='biaoqian'),
]

路由将请求转给视图【views.py】

def biaoqian(request):
    try:
        # 获取请求的tag参数
        tag_name = request.GET.get('tag', None)
        # 找到tag所对应的Tag对象
        tag_obj = Tag.objects.get(name=tag_name)
        # 使用_set通过一对多关系进行查找
        article_list = tag_obj.article_set.all()
    except Exception as e:
        logging.error(e)
    return render(request, 'biaoqian.html', locals())

视图将数据传递给前段模板渲染【biaoqian.html】

{% extends 'base.html' %}
{% load staticfiles %}
{% block left_content %}
{% include 'baseblock/ads.html' %}
<!-- banner代码 结束 -->
<div class="topnews">
    <h2>{{ request.GET.tag }} 标签云</h2>
    {% for article in article_list%}
    <div class="blogs">
        <ul>
            <h3><a href="/">{{ article.title }}</a></h3>
            <p>{{ article.desc }}</p>
            <p class="autor">
                <span class="lm f_l">
                    {% for tag in article.tag.all %}
                    <a href="/">{{ tag.name }}</a> 
                    {% endfor %}
                </span>
                <span class="dtime f_l">{{ article.date_publish | date:'Y-m-d' }}</span>
                <span class="viewnum f_r">浏览（<a href="/">{{ article.click_count }}</a>）</span>
                <span class="pingl f_r">评论（<a href="/">{{ article.comment_set.all.count }}</a>）</span>
            </p>
        </ul>
    </div>
    {% endfor %}
</div>
{% endblock %}

2 文章归档详情页（方法与标签云类似）

前端请求的href【sorts.html】
silce切片类似于[:4]，获取需要的数据

<li><p><span class="tutime font-size-18"><a href='{% url "archive" %}?year={{ article_date | slice:":4" }}&month={{ article_date | slice:"7:9" }}'>{{ article_date }}</a></span></p></li>

请求转到路由【urls.py】

from django.conf.urls import url
from blog.views import archive

urlpatterns = [
    url(r'^archive$', archive, name='archive'),
]

路由将请求转给视图【views.py】

def archive(request):
    try:
        # 先获取用户提交的year和month信息
        year = request.GET.get('year', None)
        month = request.GET.get('month', None)
        # 通过filter过滤出对应年份的数据（icontains是包含）
        article_list = Article.objects.filter(date_publish__icontains=year + '-' + month)
    except Exception as e:
        logging.error(e)
    return render(request, 'archive.html', locals())

视图将数据传递给前段模板渲染【atchive.html】

{% extends 'base.html' %}
{% load staticfiles %}
{% block left_content %}
{% include 'baseblock/ads.html' %}
<!-- banner代码 结束 -->
<div class="topnews">
    <h2>{{ request.GET.year }}年{{ request.GET.month }}月 归档文章</h2>
    {% for article in article_list%}
    <div class="blogs">
        <ul>
            <h3><a href="/">{{ article.title }}</a></h3>
            <p>{{ article.desc }}</p>
            <p class="autor">
                <span class="lm f_l">
                    {% for tag in article.tag.all %}
                    <a href="/">{{ tag.name }}</a> 
                    {% endfor %}
                </span>
                <span class="dtime f_l">{{ article.date_publish | date:'Y-m-d' }}</span>
                <span class="viewnum f_r">浏览（<a href="/">{{ article.click_count }}</a>）</span>
                <span class="pingl f_r">评论（<a href="/">{{ article.comment_set.all.count }}</a>）</span>
            </p>
        </ul>
    </div>
    {% endfor %}
</div>
{% endblock %}

3 文章详情页面设计

前端请求的href【sorts.html】
总共有3个地方：博客首页、文章排行、归档详情页面

## index.html【博客首页】
<h3><a href='{% url "article" %}?id={{ article.id }}'>{{ article.title }}</a></h3>

## chart.html【文章排行】
<li><a href='{% url "article" %}?id={{ article_click.id }}' target="_blank">{{ article_click }}</a></li>
<li><a href='{% url "article" %}?id={{ article_comment.id }}' target="_blank">{{ article_comment }}</a></li>
<li><a href='{% url "article" %}?id={{ article_recommend.id }}' target="_blank">{{ article_recommend }}</a></li>

## archive.html【归档详情页面】
<h3><a href='{% url "article" %}?id={{ article.id }}'>{{ article.title }}</a></h3>

请求转到路由【urls.py】

from django.conf.urls import url
from blog.views import article

urlpatterns = [
    url(r'^article/$', article, name='article'),
]

路由将请求转给视图【views.py】

# 文章详情
def article(request):
    try:
        # 获取文章id
        id = request.GET.get('id', None)
        try:
            # 获取文章信息
            article = Article.objects.get(pk=id)
        except Article.DoesNotExist:
            return render(request, 'failure.html', {'reason': '没有找到对应的文章'})
    except Exception as e:
        print e
        logging.error(e)
    return render(request, 'article.html', locals())

app下面新建一个templatetags目录自定义过滤器【myfilter.py】

# -*- coding: utf-8 -*-
from django import template
register = template.Library()

# 定义一个将日期中的月份转换为大写的过滤器，如8转换为八
@register.filter
def month_to_upper(key):
        return ['一', '二', '三', '四', '五', '六', '七', '八', '九', '十', '十一', '十二'][key.month-1]

视图将数据传递给前段模板渲染【article.html】
这里使用了自定义的过滤器获取对应月份的大写

{% extends 'base.html' %}
{% load staticfiles %}
{% load myfilter %}
{% block left_content %}
<div class="postdate">
    <div class="month">{{ article.date_publish | month_to_upper }}</div>
    <div class="date">{{ article.date_publish | date:'d' }}</div>
</div>
<div class="title">
    <h2><a href="" rel="bookmark" title="{{ article.title }}">{{ article.title }}</a></h2>
    <div class="postmeta">
        <span class="postmeta_author">{{ article.user.username }}</span>
        <span class="postmeta_category"><a href="" rel="category">{{ article.category.name }}</a></span>
        <span class="postmeta_time">{{ article.date_publish | date:'Y-m-d' }}</span>
    </div>
</div>
<div class="entry">
    {{ article.content | safe }}
</div>
<span class="tags">
    {% for tag in article.tag.all %}
    <a href="?tag={{ tag.name }}" rel="tag">{{ tag.name }}</a>
    {% endfor %}
</span>
{% endblock %}