Error: Call to a member function getAlphadecimal() on null when deleting Flow boards on gomwiki
Closed, ResolvedPublicPRODUCTION ERROR
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Authored By

	Pppery
	May 19 2025, 5:18 PM

Description

In T389247#10795758, @The_Discoverer wrote:

Errors while trying to delete:

https://gom.wikipedia.org/wiki/वापरपी चर्चा:Thibaut120094/Archive_1 :

[f98c2e6c-3313-408a-982a-28d428186540] 2025-05-06 12:45:31: Fatal exception of type "Error"

https://gom.wikipedia.org/wiki/वापरपी चर्चा:Matěj Suchánek/Archive 1

[4c76ce21-0a9b-4ef2-a66a-551a9378879f] 2025-05-06 12:46:36: Fatal exception of type "Error"

Error

mwversion: 1.44.0-wmf.27
reqId: f98c2e6c-3313-408a-982a-28d428186540
Find reqId in Logstash

normalized_message

[{reqId}] {exception_url}   Error: Call to a member function getAlphadecimal() on null

Frame	Location	Call
from	/srv/mediawiki/php-1.44.0-wmf.27/extensions/Flow/includes/Content/BoardContent.php(59)
#0	/srv/mediawiki/php-1.44.0-wmf.27/includes/content/ContentHandler.php(1137)	Flow\Content\BoardContent->getTextForSummary(int)
#1	/srv/mediawiki/php-1.44.0-wmf.27/includes/page/WikiPage.php(2694)	MediaWiki\Content\ContentHandler->getAutoDeleteReason(MediaWiki\Title\Title)
#2	/srv/mediawiki/php-1.44.0-wmf.27/includes/actions/DeleteAction.php(616)	MediaWiki\Page\WikiPage->getAutoDeleteReason()
#3	/srv/mediawiki/php-1.44.0-wmf.27/includes/actions/DeleteAction.php(392)	MediaWiki\Actions\DeleteAction->getDefaultReason()
#4	/srv/mediawiki/php-1.44.0-wmf.27/includes/actions/DeleteAction.php(186)	MediaWiki\Actions\DeleteAction->tempConfirmDelete()
#5	/srv/mediawiki/php-1.44.0-wmf.27/includes/actions/DeleteAction.php(148)	MediaWiki\Actions\DeleteAction->tempDelete()
#6	/srv/mediawiki/php-1.44.0-wmf.27/includes/actions/ActionEntryPoint.php(728)	MediaWiki\Actions\DeleteAction->show()
#7	/srv/mediawiki/php-1.44.0-wmf.27/includes/actions/ActionEntryPoint.php(505)	MediaWiki\Actions\ActionEntryPoint->performAction(MediaWiki\Page\Article, MediaWiki\Title\Title)
#8	/srv/mediawiki/php-1.44.0-wmf.27/includes/actions/ActionEntryPoint.php(143)	MediaWiki\Actions\ActionEntryPoint->performRequest()
#9	/srv/mediawiki/php-1.44.0-wmf.27/includes/MediaWikiEntryPoint.php(202)	MediaWiki\Actions\ActionEntryPoint->execute()
#10	/srv/mediawiki/php-1.44.0-wmf.27/index.php(58)	MediaWiki\MediaWikiEntryPoint->run()
#11	/srv/mediawiki/w/index.php(3)	require(string)
#12	{main}

Impact

Notes

Details

MediaWiki Version: 1.44.0-wmf.27
Request URL: https://gom.wikipedia.org/w/index.php?action=delete&oldid=*&title=*

Related Changes in Gerrit:

	Subject	Repo	Branch	Lines +/-
	Don't crash when deleting corrupt workflows	mediawiki/extensions/Flow	REL1_44	+8 -2
	Don't crash when deleting corrupt workflows	mediawiki/extensions/Flow	master	+8 -2

Customize query in gerrit

Related Objects

Mentioned Here: T389247: Run Flow migration script at *gomwiki*

Event Timeline

Pppery created this task.May 19 2025, 5:18 PM

Restricted Application added a project: Growth-Team. · View Herald TranscriptMay 19 2025, 5:18 PM

Restricted Application added a subscriber: Aklapper. · View Herald Transcript

Aklapper renamed this task from Errors deleting Flow boards on gomwiki to Error: Call to a member function getAlphadecimal() on null when deleting Flow boards on gomwiki.May 20 2025, 8:38 AM

Aklapper set Request URL to https://gom.wikipedia.org/w/index.php?action=delete&oldid=*&title=*.

Aklapper updated the task description. (Show Details)

Aklapper set Release Version to 1.44.0-wmf.27.

Change #1148332 had a related patch set uploaded (by Pppery; author: Pppery):

[mediawiki/extensions/Flow@master] Don't crash when deleting corrupt workflows

https://gerrit.wikimedia.org/r/1148332

gerritbot added a project: Patch-For-Review.May 20 2025, 1:22 PM

Change #1148332 merged by jenkins-bot:

[mediawiki/extensions/Flow@master] Don't crash when deleting corrupt workflows

https://gerrit.wikimedia.org/r/1148332

This should be fixed when the next version is deployed (circa May 28).

If it's really needed earlier I could backport it, but this is non-urgent cleanup so I'm inclined not to.

Pppery removed a project: Patch-For-Review.May 20 2025, 2:50 PM

ReleaseTaggerBot added a project: MW-1.45-notes (1.45.0-wmf.3; 2025-05-27).May 20 2025, 3:00 PM

@Pppery I was able to delete the two corrupt Flow boards. With this, we finally complete the archiving and clearing of Flow boards on gomwiki. It certainly feels like we have slayed the many-headed Hydra.

SomeRandomDeveloper subscribed.Dec 20 2025, 2:29 AM

Change #1219962 had a related patch set uploaded (by SomeRandomDeveloper; author: Pppery):

[mediawiki/extensions/Flow@REL1_44] Don't crash when deleting corrupt workflows

https://gerrit.wikimedia.org/r/1219962

gerritbot added a project: Patch-For-Review.Dec 20 2025, 2:31 AM

Change #1219962 merged by jenkins-bot:

[mediawiki/extensions/Flow@REL1_44] Don't crash when deleting corrupt workflows

https://gerrit.wikimedia.org/r/1219962

Maintenance_bot removed a project: Patch-For-Review.Dec 21 2025, 10:30 PM

Pppery merged a task: T260486: Fatal exception error when deleting a Structured Discussions topic or a post on a topic.Mar 3 2026, 1:53 AM

Pppery added subscribers: dmehus, Reception123.