extra rss elements

[William Morgan]

Dear why and the rest,

Here's a simple patch to rss.rb to allow for adding extra fields to the RSS
feed. I'm using this right now to add Creative Commons licensing information,
as described in 

  http://creativecommons.org/technology/usingmarkup

and

  http://backend.userland.com/creativeCommonsRssModule.

With this patch, I add the following in hobix.yaml:

  - hobix/out/rss:
      namespaces:
        creativeCommons: http://backend.userland.com/creativeCommonsRssModule
      elements:
        creativeCommons:license: http://creativecommons.org/licenses/by-nc-sa/2.\0/

If people like it, I will try and extend this idea to the atom and
okaynews feeds.

(I also changed the page layout such that there's a footer (via SSI,
like the sidebar) which displays the Creative Commons logo and text on
all pages. But that should be easy to figure out how to do.)

--- cut here ---
*** old/rss.rb  Wed Sep 22 16:20:28 2004
--- new/rss.rb  Thu Sep 23 08:47:43 2004
***************
*** 20,27 ****
  module Hobix
  module Out
  class RSS < Hobix::BaseOutput
!     def initialize( weblog )
          @path = weblog.skel_path
      end
      def extension
          "rss"
--- 20,29 ----
  module Hobix
  module Out
  class RSS < Hobix::BaseOutput
!     def initialize( weblog, params = {} )
          @path = weblog.skel_path
+         @extra_ns = params['namespaces']
+         @extra_els = params['elements']
      end
      def extension
          "rss"
***************
*** 52,57 ****
--- 54,69 ----
          rssdoc.elements['/rss/channel/link'].text = vars[:weblog].link
          rssdoc.elements['/rss/channel/description'].text = vars[:weblog].tagline
          rssdoc.elements['/rss/channel/dc:date'].text = Time.now.utc.strftime( "%Y-%m-%dT%H:%M:%S+00:00" )
+
+         @extra_ns.each do |k, v|
+             rssdoc.elements['/rss'].attributes["xmlns:" + k.to_s] = v.to_s
+         end if @extra_ns
+         @extra_els.each do |k, v|
+             extra = REXML::Element.new k.to_s
+             extra.text = v.to_s
+             rssdoc.elements['/rss/channel'].add extra
+         end if @extra_els
+
          ( vars[:entries] || [vars[:entry]] ).each do |e|
              ele = REXML::Element.new 'item'
              ele_title = REXML::Element.new 'title'
--- cut here ---

-- 
William <wmorgan-hobix-is-the-way at masanjin.net>