Last modified: 2012-11-16 03:17:00 UTC

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Bug 12128 - Extension:Gadgets with strange page caching (?) bug on special:preferences
Extension:Gadgets with strange page caching (?) bug on special:preferences
Status: REOPENED
Product: MediaWiki extensions
Classification: Unclassified
Gadgets (Other open bugs)
unspecified
All All
: Low normal with 2 votes (vote)
: ---
Assigned To: Nobody - You can work on this!
http://www.mediawiki.org/wiki/Extensi...
: testme
Depends on:
Blocks:
  Show dependency treegraph
 
Reported: 2007-11-26 23:47 UTC by Daniel Arnold
Modified: 2012-11-16 03:17 UTC (History)
4 users (show)

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


Attachments

Description Daniel Arnold 2007-11-26 23:47:48 UTC
In de.wikipedia you need to edit MediaWiki:Gadgets-definition twice in order to add a new entry/remove an entry from the resulting "Gadgets" tab in Special:Preferences (Spezial:Einstellungen there). So only every second edit to MediaWiki:Gadgets-definition seems to get recognized by the extension (a null edit as second edit works).
Comment 1 Daniel Kinzler 2007-11-26 23:51:02 UTC
This is somehow related to how the Gadgets extension caches the list of gadgets maintained on MediaWiki:Gadgets-definition: after parsing, it stuffs them into memcached. If the page is edited, the cache entry is invalidated. 

I don't know why this doesn't work on the live site, it works for me locally, even with memcached enabled (if i in fact managed to correctly enable it). So, it would be great if someone with better knowledge of the caching system could look into this - maybe it's related to the local message cache thingy? 
Comment 2 Daniel Kinzler 2007-11-27 16:53:33 UTC
Fixed in revision 27891 with some help from Brion. Should go live soon.
Comment 3 Pietrodn 2008-12-22 17:33:08 UTC
I still experience this problem on it.wikipedia. Today I added a gadget in Gadgets-definition. I waited several hours but the gadget didn't show up in the Prefs. Then I made a null edit and it immediately began working.
Comment 4 Max Semenik 2011-02-16 17:45:38 UTC
Is this bug still reproduceable?
Comment 5 Sam Reed (reedy) 2012-01-31 17:14:44 UTC
(In reply to comment #3)
> I still experience this problem on it.wikipedia. Today I added a gadget in
> Gadgets-definition. I waited several hours but the gadget didn't show up in the
> Prefs. Then I made a null edit and it immediately began working.

https://www.mediawiki.org/wiki/Special:Code/MediaWiki/27891
Comment 6 Sam Reed (reedy) 2012-01-31 19:19:51 UTC
Seemingly might be from bug 33829

Null edit fixed it in this case also
Comment 7 MZMcBride 2012-11-16 03:17:00 UTC
I believe the English Wikipedia just hit this issue. There was a corrupt memcached entry with a value of "enwiki:gadgets-definition:6" that Tim had to delete manually in order to get the Gadgets extension working again.

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