From: rb <rb@...>
Date: 2006-12-30T00:35:05+09:00
Subject: XML - converting from one feed to another (beginner)

I'm trying to read an XML feed of products and convert them to a
different XML feed to upload to Froogle (Google Base).

How do I read the lines of XML and then rewrite them in the new XML?
I've started with rexml, but I'm not sure if I'm on the right track.  


def convert_to_base_xml(xml)
  # Takes a product XML feed and converts it into one that
  # is formatted for uploading to Google Base

  # doc = REXML::Document.new
  feed = REXML::Document.new(xml)

  # Create the export XML document
  doc = REXML:Document.new
  rss = doc.add_element 'rss'

  channel = doc.add_element 'channel'  

  # Loop through old feed and create new feed based
  # on that data
  feed.each_child do |child|
    #add items to new rss feed, see below
    
    # I'm not sure what I should do here

  end
   
  # Save rss feed to a file

end

# original feed XML
# <item>
#   <viewName></viewName>
#   <artist></artist>
#   <artist_url></artist_url>
#   <title></title>
#   <title_url></title_url>
#   <catName></catName>
#   <cat_url></cat_url>
#   <cat></cat>
#   <codeName></codeName>
#   <id></id>
#   <previewPath><previewPath>
#   <imagePath></imagePath>
# </item>
#
# Convert to an RSS 2.0 feed in this format:
#
# <item>
#   <title></title>
#   <link></link>
#   <g:artist></g:artist>
#   <description></description>
#   <g:brand></g:brand>
#   <g:label></g:label>
#   <g:image_link></g:image_link>
#   <g:product_type><g:product_type>
#   <g:price></g:price>
# </item>