using "from=" in category urls can incorrectly say that categories are empty
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	Lejonel
	Jan 14 2012, 2:53 PM

Description

In current Wikimedia version of Mediawiki using category urls with "from=Something" will say that the category is empty if all sortkeys are aphabetically smaller than "Something". And no "previous 200 link" is shown.
Example: http://sv.wikipedia.org/wiki/Kategori:Spelare_i_FK_Austria_Wien?from=Y&uselang=en

Similar problem can be seen for the subcat, page, and media sections of a category if the new "subcatfrom=", "pagefrom=", and "filefrom=" parameters or old "from=" parameter is greater than all sort keys in a section. Then that section and its previous link is not shown.

The "until", "subcatuntil", "pageuntil", and "fileuntil" parameters have the same bug (but in the other direction).

Version: unspecified
Severity: normal

Details

Reference: bz33723

Related Changes in Gerrit:

	Subject	Repo	Branch	Lines +/-
	CategoryViewer: Display count link if from/until parameter is set	mediawiki/core	master	+9 -3
	CategoryViewer: Show paging links at endpoints even when no results	mediawiki/core	master	+5 -0

Customize query in gerrit

Event Timeline

• bzimport raised the priority of this task from to Medium.Nov 22 2014, 12:00 AM

• bzimport added a project: MediaWiki-Categories.

• bzimport set Reference to bz33723.

• bzimport added a subscriber: Unknown Object (MLST).

Lejonel created this task.Jan 14 2012, 2:53 PM

TheDJ added a project: good first task.Jan 21 2018, 5:13 PM

Restricted Application added a subscriber: TerraCodes. · View Herald TranscriptJan 21 2018, 5:13 PM

TheDJ removed a subscriber: • wikibugs-l-list.Jan 21 2018, 5:14 PM

Jonesey95 subscribed.Jan 21 2018, 6:04 PM

The erroneous message is in "MediaWiki:Category-empty", and in English, it gives this incorrect message: "There are no pages or files in this category."

On this "no pages or files" results page, there are also no "previous page / next page" links, even though there should be a "previous page" link if you are at the end of the alphabet or a "next page" link if you are at the beginning of the alphabet.

Stang updated the task description. (Show Details)May 7 2022, 10:52 PM

Will looks like this, a little bit strange..?

Change 789968 had a related patch set uploaded (by Stang; author: Stang):

[mediawiki/core@master] CategoryViewer: Display count link if from/until parameter is set

https://gerrit.wikimedia.org/r/789968

gerritbot added a project: Patch-For-Review.May 7 2022, 11:30 PM

Pppery edited projects, added Patch-Needs-Improvement; removed Patch-For-Review.Apr 8 2023, 5:19 PM

@Stang: Removing task assignee as this open task has been assigned for more than two years - See the email sent to task assignee on October 11th.
Please assign this task to yourself again if you still realistically [plan to] work on this task - it would be welcome! :)
If this task has been resolved in the meantime, or should not be worked on by anybody ("declined"), please update its task status via "Add Action… 🡒 Change Status".
Also see https://www.mediawiki.org/wiki/Bug_management/Assignee_cleanup for tips how to best manage your individual work in Phabricator. Thanks!

Tejashxv claimed this task.Sep 12 2025, 6:06 PM

Tejashxv added a project: RoadToWiki.

Adityakumar0545 subscribed.Sep 14 2025, 12:23 PM

Change #1187878 had a related patch set uploaded (by Tejashxv; author: C. Scott Ananian):

[mediawiki/core@master] CategoryViewer: Show paging links at endpoints even when no results

https://gerrit.wikimedia.org/r/1187878

gerritbot added a project: Patch-For-Review.Sep 24 2025, 7:11 PM

Restricted Application removed a project: Patch-Needs-Improvement. · View Herald TranscriptSep 24 2025, 7:11 PM

Change #789968 abandoned by Hashar:

[mediawiki/core@master] CategoryViewer: Display count link if from/until parameter is set

https://gerrit.wikimedia.org/r/789968

Change #789968 restored by Thcipriani:

[mediawiki/core@master] CategoryViewer: Display count link if from/until parameter is set

https://gerrit.wikimedia.org/r/789968

	F35111815: image.png
	May 7 2022, 11:15 PM

using "from=" in category urls can incorrectly say that categories are emptyOpen, MediumPublicActions

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using "from=" in category urls can incorrectly say that categories are empty
Open, MediumPublic
Actions