Re: Some issues when creating my own feeds

Hello James/All
James Holderness wrote:

>Gerrit Kuilder wrote:
>
>>Mozilla Thunderbird ( 1.02 and 1.5 RC1) somehow does not update them
>>automaticly and even a refresh or get new articles does not help. The
>>only thing I can do is unsubscribe to the feed and subscribe again.
>>    
>>
>
>This is just a wild guess, but I suspect that Thunderbird may not be capable 
>of handling updating entries. It wouldn't surprise me if there were many 
>aggregators that had this problem. Basically once they see an id that 
>they've already retrieved they'll ignore it assuming it's a duplicate.
>
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>
I was thinking the same when I woke up this morning and it makes sense. 
I can fix that but for further feeds I will be creating it might  become 
(my) issue , see further below.

>>This goes through an apache log file and pulls out the last played songs
>>that I play through a web server.
>>    
>>
>
>This is not really an ideal scenario for an RSS feed. What happens when you 
>change from a 10 track CD to an 8 track CD? From what I can make out you 
>seem to be reusing the same set of IDs all the time. So the feed for the new 
>CD will share the same IDs 1 to 8 as the feed for the old CD. Thus in an 
>aggregator, the first 8 tracks will update to reflect the contents of the 
>new CD, but tracks 9 and 10 will still be showing the entries from the first 
>CD.
>
>A better solution may be to provide a whole new set of IDs for each CD. Then 
>in an aggregator, you'll see a new set of entries each time a CD is changed. 
>Tracks from previous CDs will also be visible in the list, but they'll all 
>be neatly grouped together - nothing will ever be overwritten.
>
>And yet another alternative would be to include one entry in the feed for 
>each CD and make the content of the entry list all the tracks of the CD. 
>Every time the the CD changes, the feed gets a new entry.
>  
>
To make it clear, the log logs individual mp3's played and I have a 
script that creates a randomized playlist, a bit like a radio but wiith 
only the music I like (and no comercials).
I think I have to try and push/pop items in the feed, making sure they 
get a unique id. As I have not looked at cerating feeds for  awhile I 
have not tried it.

>>I also re-create the whole feed from scratch so all the items get a new
>>timestamp, even if they were in the feed previously
>>Sharpreader marks as new only the ones that weren't in the feed before.
>>RSSReader, displayes all ten as new,  lot of repeats, I kinda think that
>>is correct behaviour but that means extra work for me.
>>    
>>
>
>Why include a date at all? It's not required and it's obviously not serving 
>any real purpose the way you're currently using.
>
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>
In my thinking  the date was more important that the link of an item, 
which creates a new problem for another feed I am working on: A parsing 
of a maillog presenting only the most relevant information of that log 
(unknown users/rejected mail/spam messages caught)
I have this working as a script that creates html output, a cron job 
that runs every 5 minutes and if the maillog was updated it recreates 
the web page.  The rss version does basicly the same thing now but I 
foresee some issues
Oh well, I will fix my mp3feed first, then get back to the maillog, then 
think about other feeds.

This brings up the following question (with me at least): Is what I am 
trying to do suitable for RSS, IE: the feed IS the message.

Back to the drawing board, thanks for the input.

Regards,

Gerrit Kuilder

>Regards
>James
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>Yahoo! Groups Links
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-- 
Jeg holder påskeferie hele ugen.
Med venlig hilsen

Gerrit Kuilder



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