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Copyright © 2001,2002 zopeLABS and community
Create RSS Feed on the flySubmitted by: rev_matt_yLast Edited: 2003-12-23
Category: Python(Script) |
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Description: This is a fairly simple (possibly more complex than it needs to be) means of creating an RSS Feed on the fly. This is aimed at CMF sites (may work on plone), though it could probably be modified to work on non-CMF sites. |
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Source (Text): from ZTUtils import LazyFilter,Batch
from Products.PythonScripts.standard import html_quote, structured_text
request = container.REQUEST
RESPONSE = request.RESPONSE
site_title = context.portal_url.getPortalObject().Title()
site_desc = context.portal_url.getPortalObject().Description()
site_url = context.portal_url.getPortalObject().absolute_url()
#get last 5 blog entries
default_types = 'PABlog'
raw_items = context.contentValues(filter={'portal_type': default_types } )
sort_on = (('id', 'nocase', 'desc'),('id', 'cmp', 'desc'));
items = sequence.sort(raw_items, sort_on);
batch = Batch(items, 5, 0, orphan=1);
#create the rss file
print "<?xml version=\"1.0\"?>"
print "<!DOCTYPE rss PUBLIC \"-//Netscape Communications//DTD RSS 0.91//EN\" \"http://my.netscape.com/publish/formats/rss-0.91.dtd\">"
print "<rss version=\"0.91\">"
print "<channel>"
print "<title>%s</title>" % html_quote(site_title)
print "<link>%s</link>" % html_quote(site_url)
print "<description>%s</description>" % html_quote(site_desc)
print "<language>en-us</language>"
for i in batch:
print "<item>"
print "<title>%s</title>" % html_quote(i.title)
print "<link>%s/blogentry_view</link>" % html_quote(i.absolute_url())
print "<description>%s</description>" % structured_text(i.description)
print "</item>"
print "</channel>"
return printed
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Explanation: You will need to include in your main template a line in the HEAD section like this: <link rel="alternate" type="application/rss+xml" title="RSS" href="http://www.yourdomain.com/path.to.pythonscript"/> This is obviously aimed at providing RSS for a PABlog based weblog, you can change the content type in "default_types" line to 'Document' or 'News Item' or whatever you want. If you do change it, also remove the '/blogentry_view' in the link line. The script is pretty self explanatory. Define the type of file you're looking for, sort by most recent (blog entries use creation datetime as id) grab the 5 most recent, print out well formed RSS. UPDATED: to html_quote as recommended and to get the site title, description, and url automatically. |
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