[ mailman-Patches-657951 ] Generate RSS summary in archives

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Patches item #657951, was opened at 2002-12-23 19:17
Message generated for change (Comment added) made by danbri
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Category: Pipermail
Group: Mailman 2.2 / 3.0
Status: Open
Resolution: None
Priority: 7
Submitted By: A.M. Kuchling (akuchling)
Assigned to: Nobody/Anonymous (nobody)
Summary: Generate RSS summary in archives

Initial Comment:
Here's a first-draft patch.  Things that need fixing:

* The generated RSS feed needs to be validated.  (It passed the 
W3C's RDF validator, but RSS validators still need to be checked.)

* The date should be given in YYYY-MM-DD format, which requires
parsing the .fromdate attribute.

* How do I get the URL for an archived message?  The generated RSS
currently just uses the filename, which is wrong.  How do I get
at the PUBLIC_ARCHIVE_URL setting?

* Getting the most recent N postings is inefficient; the code loops through all of the archived messages and takes the last N of them.
We could add .last() and .prev() methods to the Database class, but that's more ambitious for 2.1beta than I like.  (Would be nice to get this into 2.1final...)

* The list index page should have a LINK element pointing to
the RSS file.

Please make any comments you have, and I'll rework the patch accordingly.



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Comment By: Dan Brickley (danbri)
Date: 2003-06-22 11:48

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I thought I'd have a look at this myself, though have modest
knowledge of both Python and MailMan.

In the course of trying to patch the patch, I tried running
the archiver over just the last couple of messages, to speed
things along: 
"../../bin/arch -s 4390 rdfweb-dev". 
Traceback (most recent call last):
  File "../../bin/arch", line 187, in ?
    main()
  File "../../bin/arch", line 177, in main
    archiver.close()
  File "/usr/local/mailman/Mailman/Archiver/pipermail.py",
line 310, in close
    self.write_TOC()
  File "/usr/local/mailman/Mailman/Archiver/HyperArch.py",
line 1082, in write_TOC
    rss.write(self.RSS())
  File "/usr/local/mailman/Mailman/Archiver/HyperArch.py",
line 769, in RSS
    date, msgid = self.database.dateIndex.first()
AttributeError: HyperDatabase instance has no attribute
'dateIndex'

Not sure what's going on there, but this seemed as good a
place of any to keep note of it.

Investigating...



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Comment By: Dan Brickley (danbri)
Date: 2003-06-22 11:04

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Does anyone have a patch to remove the hardwiring of
"2002-December" and get the appropriate date from mailman
somehow?

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Comment By: Barry A. Warsaw (bwarsaw)
Date: 2003-04-18 22:43

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Andrew, to get the url for the archived message use
mlist.GetBaseArchiveURL(), which knows about private vs.
public archives, the host name and the list name.   From
there you should be able to tack on just the part of the
path under "archives/private/listname".  See
Mailman/Handlers/Scrubber.py for an example.

Only other minor comment: NUM_ARTICLES can probably go in
Defaults.py.in



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Comment By: Justin Mason (jmason)
Date: 2003-03-26 21:49

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big thumbs up from me too.  Much better solution than
http://taint.org/mmrss/ ;)

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Comment By: Uche Ogbuji (uche)
Date: 2003-03-18 01:09

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I'd like to add my vote to this item.  This is a fantastic
idea, Andrew.  Thanks.

--Uche


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Comment By: A.M. Kuchling (akuchling)
Date: 2002-12-23 20:42

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Updated patch:

* Dates are now rendered as ISO-8601 (date only, not the time of the message)

* By hard-wiring 2002-December, I got the RSS to validate using Mark Pilgrim's validator.


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Comment By: captain larry (captainlarry)
Date: 2002-12-23 19:36

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Just voting for support here.  This is *great* thanks for
the patch and I hope the maintainers include it as soon as
it's appropriate :)

Adam.

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Comment By: Barry A. Warsaw (bwarsaw)
Date: 2002-12-23 19:27

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Deferring until post-2.1

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Comment By: A.M. Kuchling (akuchling)
Date: 2002-12-23 19:21

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Argh; SF choked on the file upload.  Attaching the patch again...

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