Re: Withdrawn entries

[James Aylett <james@xxxxxxxxxxxx>]

On Wed, Oct 29, 2003 at 04:34:30AM -0800, Dare Obasanjo wrote:

> There are already ways to do this today. 
> 
> Got too old == remove it from the feed 
> Superceded  == change text, keep same guid/link
> 
> In fact at least one aggregator has a feature that
> lets you see diffs between the new and superceded
> version of a news item in the feed. 

Isn't Graham asking for something distinct from this? Superceding an
entry can be handled by changing it, but /removing/ an entry from the
CMS (rather than just from the feed) can;t currently be signalled by
the server to the client in the feed - as far as I know. Obviously the
client is free to ignore this, and use a cached copy of the resource,
or whatever. But the server has made an assertion about the resource -
it's been withdrawn. Trying to fetch its permalink, I'd imagine would
return 410 Gone.

This doesn't necessarily have much use for blogs, but is more
important in publishing, and in some different uses entirely - say I
publish a feed of my latest special offers. I only list ten - because
client software can store the rest, and anyway I have a website for
the full list - I might have ten thousand current st any one time, or
even more. But when one ends, it would be useful to signal to the
clients that that offer is no longer valid.

James

-- 
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  James Aylett                                                  xapian.org
  james@xxxxxxxxxxxx                               uncertaintydivision.org