Django教程

Django RSS

Django RSS详细操作教程
Django带有聚合feed生成框架。有了它,你可以创建RSS或Atom只需继承django.contrib.syndication.views.Feed类。
让我们创建一个订阅源的应用程序。
# Filename : example.py
# Copyright : 2020 By Lidihuo
# Author by : www.lidihuo.com
# Date : 2020-08-23
from django.contrib.syndication.views import Feed
from django.contrib.comments import Comment
from django.core.urlresolvers import reverse
class DreamrealCommentsFeed(Feed):
   title = "Dreamreal's comments"
   link = "/drcomments/"
   description = "Updates on new comments on Dreamreal entry."
   def items(self):
      return Comment.objects.all().order_by("-submit_date")[:5]

   def item_title(self, item):
      return item.user_name

   def item_description(self, item):
      return item.comment

   def item_link(self, item):
      return reverse('comment', kwargs = {'object_pk':item.pk}) 
在feed类, title, link 和 description 属性对应标准RSS 的<title>, <link> 和 <description>元素。
条目方法返回应该进入feed的item的元素。在我们的示例中是最后五个注释。
现在,我们有feed,并添加评论在视图views.py,以显示我们的评论−
# Filename : example.py
# Copyright : 2020 By Lidihuo
# Author by : www.lidihuo.com
# Date : 2020-08-23
from django.contrib.comments import Comment
def comment(request, object_pk):
   mycomment = Comment.objects.get(object_pk = object_pk)
   text = '<strong>User :</strong> %s <p>'%mycomment.user_name</p>
   text += '<strong>Comment :</strong> %s <p>'%mycomment.comment</p>
   return HttpResponse(text) 
我们还需要一些网址在myapp urls.py中映射 −
# Filename : example.py
# Copyright : 2020 By Lidihuo
# Author by : www.lidihuo.com
# Date : 2020-08-23
from myapp.feeds import DreamrealCommentsFeed
from django.conf.urls import patterns, url
urlpatterns += patterns('',
   url(r'^latest/comments/', DreamrealCommentsFeed()),
   url(r'^comment/(?P\w+)/', 'comment', name = 'comment'),
当访问/myapp/latest/comments/会得到 feed − feed
当点击其中的一个用户名都会得到:/myapp/comment/comment_id 在您的评论视图定义之前,会得到 − feed
因此,定义一个RSS源是 Feed 类的子类,并确保这些URL(一个用于访问feed,一个用于访问feed元素)的定义。 正如评论,这可以连接到您的应用程序的任何模型。
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