Only new/updated RSS feed items

Rails
1

Is there a way to do this? I am parsing a RSS feed. I need to store
each feed item into database.
how do i find out which ones are new/updated ones?
checking pubdate is not an option because i have one feed which does
not have any date field
any suggestion?

Thanks

2

Rails junkie wrote:

I check against the feed item’s url && title

3

Thanks.
i will try that