Feed Parsing In Rails - ruby-on-rails

Question

I am working on Ubuntu 10.04 and I am using feed-zirra to parse RSS feeds and I have MySQL database.
I am trying to parse RSS feeds from Times of India Top Stories. There seems to be problem with the first link, I am sure TOI guys will correct it soon. But anyway, I dont want to face similar error later so thats why I want to ask you guys how to solve this problem.
Just look at this and especially look for link
<item>
<title>CWG: Abhinav Bindra, Gagan Narang win first Gold for India</title
<description>Abhinav Bindra and Gagan Narang on Tuesday bagged Gold for the men's 10 m air rifle pair's event, getting India its first gold in the 19th Commonwealth Games.</description>
<link>/cwgarticleshow/6688747.cms</link>
<guid>/cwgarticleshow/6688747.cms</guid>
<pubDate>Tue, 05 Oct 2010 04:57:46 GMT</pubDate>
</item>
The link is <link>/cwgarticleshow/6688747.cms</link>
Now, when I click the link, in the view.. its getting routed to http://localhost:3000/cwgarticleshow/6688747.cms instead of http://timesofindia.indiatimes.com/cwgarticleshow/6688747.cms
And the error I am getting is
**Routing Error**
No route matches "/cwgarticleshow/6688747.cms" with {:method=>:get}
How do I correct this type of Error?
Looking forward for your help and support
Thanks

Answer 1

You just need to prepend http://timesofindia.indiatimes.com to the link tag value and you'll be ok.

Answer 2

You can use URI class. You can, for example, define following method
require "uri"
def repair_link(feed_link)
uri = URI.parse(feed_link)
uri.scheme ||= "http"
uri.host ||= "timesofindia.indiatimes.com"
uri.to_s
end
It will set the scheme and host part of the URL if they are not already filled. So if you call it for normal link (like http://foo/bar.cms) then nothing will be changed.
And last thing - you probably should catch exception somewhere as the #parse method raises exception InvalidURIError in case of invalid URI. But it's up to you how you will deal with it.