source/app/views/rss/any_uma_type_feed.rxml

#--######################################################################
# Copyright (c) 2008 IBM
# 
# All rights reserved. This program and the accompanying materials
# are made available under the terms of the Eclipse Public License v1.0
# which accompanies this distribution, and is available at
# http://www.eclipse.org/legal/epl-v10.html
#
# Contributors:
# 
# Ricardo Balduino:: Initial implementation, based on design discussions with Onno van der Straaten
#++######################################################################
# {Copyright (c) 2008 IBM}[link:files/COPYRIGHT.html]

records = (@umaElements).uniq
imageSrc = ""
imageSrcTag = ""


xml.instruct!
  #xml.rss "version" => "2.0", "xmlns:dc" => "http://purl.org/dc/elements/1.1/" do
  xml.rss "version" => "2.0", "xmlns:atom" => "http://www.w3.org/2005/Atom" do
  
  scope = @wiki.title + " Wiki" if @wiki
  scope = ENV['EPFWIKI_APP_NAME'] unless @wiki
  
  xml.channel do
    xml.title "#{scope}"
    if @wiki
      xml.link @wiki.url(true) 
      xml.atom:link, :href => "http://#{ENV['EPFWIKI_HOST']}/rss/#{@wiki.folder}/#{@umaType}", :rel => 'self', :type => 'application/rss+xml'      
    end
    xml.pubDate CGI.rfc1123_date(Time.now.gmtime) 
    xml.description h("All #{@umaType} elements in '#{scope}'")
    records.sort_by{|record| [record.presentation_name]}.each do |record| # can sort on more columns but we have the baseline_updated_on column
      xml.item do
        logger.debug("RSS item for #{record.class.to_s} with ID #{record.id}")
        wiki_page = record

        # extracts the image for each item
        match1 = /<td width="50">(.*?)<\/td>/m.match(wiki_page.html)
        if(match1)
          match2 = /src="(.*?)"/m.match(match1[1])
          if match2
            imageSrc = match2[1]
            imageSrc = imageSrc.gsub("../", '')
            imageSrc = imageSrc.gsub("./", '')
            imageSrc = "http://" + ENV['EPFWIKI_HOST'] + "/" + "#{ENV['EPFWIKI_WIKIS_FOLDER']}/" + wiki_page.site.folder + "/" + imageSrc # uses this to show an image by the channel title
            imageSrcTag = '<img src="'+imageSrc+'" width="16" height="16" />' # uses this to show an image by the brief description
          end      
        end       
        xml.guid "WikiPage#{wiki_page.id.to_s}", :isPermaLink => false
        xml.title "#{wiki_page.presentation_name}"
        xml.link wiki_page.url(true)
        xml.description imageSrcTag+" "+wiki_page.overview_table
        xml.pubDate CGI.rfc1123_date(Time.now.gmtime)
        #xml.dc_creator h(wiki_page.user.name) # this is raising an exception -> user is nil
      end
    end
   
    # shows the image with link on the channel section
    xml.image do
      xml.url imageSrc
      xml.link @wiki.url(true)
      xml.title @wiki.title
    end  
  end
end