Last modified: 2011-04-14 15:13:45 UTC

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Bug 9314 - Depopulate categories when deleting them
Depopulate categories when deleting them
Status: NEW
Product: MediaWiki
Classification: Unclassified
Categories (Other open bugs)
unspecified
All All
: Low enhancement with 2 votes (vote)
: ---
Assigned To: Nobody - You can work on this!
:
Depends on:
Blocks:
  Show dependency treegraph
 
Reported: 2007-03-16 16:07 UTC by Tsee
Modified: 2011-04-14 15:13 UTC (History)
1 user (show)

See Also:
Web browser: ---
Mobile Platform: ---
Assignee Huggle Beta Tester: ---


Attachments

Description Tsee 2007-03-16 16:07:50 UTC
Right now, bots need to be involved when deleting a Category, which needs to be
emptied first. Renaming a cat is equally awkward. Is it possible to modify the
software so that you can choose to delete a Category from all linked pages with
the click of a button, or rename one easily? Thanks
Comment 1 Rob Church 2007-03-16 16:15:28 UTC
Repurposing to cover just the deletion; renaming is bug 8685.
Comment 2 Aryeh Gregor (not reading bugmail, please e-mail directly) 2007-12-16 20:40:21 UTC
This can't be done cleanly as long as category membership is still stored in-band with the rest of the text, i.e., typing [[Category:Something]] to add to a category.  See bug 167.
Comment 3 Tsee 2007-12-17 00:11:40 UTC
Sorry, I don't understand. Why can't you you delete all relevant textstrings ("[[[[Category:Foo]]") from the affected pages easily?
Comment 4 Aryeh Gregor (not reading bugmail, please e-mail directly) 2007-12-17 01:12:33 UTC
You have to account for <nowiki>, <pre>, <noinclude>, <includeonly>, <onlyinclude>, extensions, templates, and various weird combinations thereof.  In particular, it can easily be impossible to algorithmically delete a template-generated category.  Consider [[Template:A]] containing "Text [[Category:{{{1}}}]]", and [[B]] containing "{{A|Foo}}", then try to delete "[[Category:Foo]]" from that page without deleting "Text".  (Of course, the latter would apply as long as templates can add categories, in-band or not.)

Yes, you could cobble something together for some cases, but as I said, it can't be done *cleanly*.  At the very least you would have to partially parse every affected page to make sure you avoided basic constructs like <nowiki>, and that would take a long time.  Not to mention it would be a huge pain to reverse.

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