models.py

# coding: utf8

from django.db import models
from tagging.fields import TagField
from cked.fields import RichTextField

class Post(models.Model):
    title = models.CharField(max_length=255, unique=True)
    slug = models.SlugField(max_length=255, unique=True)
    datetime = models.DateTimeField('Дата публикации')
    content = RichTextField('Контент')
    category = models.ForeignKey('blog.Category')
    tags = TagField('Теги')

    class Meta:
        db_table = "news"
        verbose_name = 'Новость'
        verbose_name_plural = 'Новости'

    def __unicode__(self):
        return '%s' % self.title

class Category(models.Model):
    title = models.CharField(max_length=100, db_index=True)
    slug = models.SlugField(max_length=100, db_index=True)

    class Meta:
        db_table = "categorys"
        verbose_name = 'Категория'
        verbose_name_plural = 'Категории'

    def __unicode__(self):
        return '%s' % self.title

urls.py

#coding: utf-8

from django.conf.urls import url, patterns
import views

urlpatterns = patterns('',
	url(r'^$',  views.PostList.as_view(), name='blog-post-list'),
	url(r'^view/(?P<slug>[^\.]+).html', views.PostDetail.as_view(), name='blog-post-detail'),
  url(r'^category/(?P<slug>[^\.]+).html', views.CategoryList.as_view(), name='blog-category-list'),
  url(r'^tag/(?P<tag>[^/]+)/$', views.TagPostList.as_view(), name='blog-posttag-list'),
)

views.py

# coding: utf8

from django.views.generic.list import ListView
from django.views.generic.detail import DetailView
from .models import Post

class PostList(ListView):
	queryset = Post.objects.all().order_by('-datetime')
	template_name = "blog/post_list.html"
	paginate_by = 5
	context_object_name = "post_list"

class PostDetail(DetailView):
	model = Post
	slug_field = 'slug'
	template_name = "blog/post_detail.html"

class CategoryList(ListView):
	slug_field = 'slug'
	template_name = "blog/post_list.html"

	def get_queryset(self):
		return Post.objects.filter(category__slug=self.kwargs['slug'])

class TagPostList(ListView):
	template_name = "blog/post_list.html"

	def get_queryset(self):
		return Post.objects.filter(tags=self.kwargs['tag'])