Django之tag的使用

INSTALLED_APPS = [
'myblog',
'taggit',
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
]

from taggit.managers import TaggableManager

class Post(models.Model):
'''
实体－文章类
发布的文章
'''
STATUS_CHOICES={
('draft', '草稿'),
('published', '发布'),
}
title=models.CharField(max_length=300,verbose_name='文章标题')
zhaiyao=models.TextField(verbose_name='摘要')
content=models.TextField(verbose_name='文章内容')
author = models.ForeignKey(User,related_name='blog_posts')
publish = models.DateTimeField(default=timezone.now,verbose_name='发布时间')
created = models.DateTimeField(auto_now_add=True,verbose_name='提交时间')
updated = models.DateTimeField(auto_now=True,verbose_name='更新时间')
status=models.CharField(max_length=10,choices=STATUS_CHOICES)
tags=TaggableManager
published=PublishedManager()
# #分类标签
tags = TaggableManager()

class Meta:
ordering = ('-publish',)

def __str__(self):
return self.title

def __unicode__(self):
return self.title

def get_absolute_url(self):
return reverse('myblog:post_detail',args=[self.publish.year,
self.publish.strftime('%m'),
self.publish.strftime('%d'),
self.title.encode('utf-8')])

{% extends "myblog/base.html" %}
{% block content %}
{% if tag %}
<h2>Posts tagged with "{{ tag.name }}"</h2>
{% endif %}
{% for post in posts %}
<h2>
<a href="{{ post.get_absolute_url }}">{{ post.title }}</a>
</h2>
<p class="tags">
{#            {{ post.tags.all|join:", " }}#}
标签:
{% for tag in post.tags.all %}
<a href="{% url "myblog:post_list_by_tag" tag.slug %}">
{{ tag.name }}
</a>
{% if not forloop.last %}
,
{% endif %}
{% endfor %}
</p>
{#        posted @ 2016-04-18 16:16 similarface#}
<p class="date">
posted@{{ post.publish }} {{ post.author }}
</p>
{{ post.body|truncatewords:30|linebreaks }}
{% endfor %}
{% include "pagination.html" with page=posts %}
{#    {% include "pagination.html" with page=page_obj %}#}
{% endblock %}

url(r'^tag/(?P<tag_slug>[-\w]+)/$', views.post_list,name='post_list_by_tag'),

def post_list(request,tag_slug=None):
'''
文章的列表
:param request:
:return:所有文章的列表
'''
#获取所有的published的文章
object_list=Post.published.all()
tag=None
if tag_slug:
tag=get_object_or_404(Tag,slug=tag_slug)
object_list=object_list.filter(tags__in=[tag])
paginator=Paginator(object_list,3)
#rquest没有就返回None
page=request.GET.get('page')
try:
posts=paginator.page(page)
except PageNotAnInteger:
posts=paginator.page(1)
except EmptyPage:
posts=paginator.page(paginator.num_pages)
return render(request,'myblog/post/list.html',{'page':page,'posts':posts,'tag':tag})