Change 736926 had a related patch set uploaded (by Jdlrobson; author: Simon04):

[mediawiki/extensions/PageImages@master] Allow editors control of the page image

https://gerrit.wikimedia.org/r/736926

Minor request: change the class name to notpageimage. nopageimage implies the page will not have a page image.

Also, consider whether the name should have a mwe- in front.

Lastly, this solution is non-trivial to implement programmatically on e.g. the Lua side. If I want to exclude images from all Navboxes and Sidebars (probably what this use case most wants to do), I need to hunt through the image syntax (an effort that even the current syntax highlighter fails at when embedded links are present, so this doesn't sound like fun), check for the class, and append the class if present and add the attribute with class if not.

Is there no way to implement this as finding a wrapper with the class and then discounting images inside it?

Discussed in standup today and we are moving forward with this. It's a good first step! I did want to raise the concern that since we'll have the ability to remove the image before we have the ability to replace it with a more appropriate one, a number of articles that might have better images on the page might end up with no images at all.

In T301588#7705107, @Izno wrote:

Also, consider whether the name should have a mwe- in front.

No need for a prefix here. The class should not be used for anything outside it's purpose.

If and when T91683 is resolved then the class will likely become redundant and can just be removed.

change the class name to notpageimage

This change seems sensible and has been made. Thanks for the input.

Lastly, this solution is non-trivial to implement programmatically on e.g. the Lua side

Ack. It's an imperfect solution but should help in certain cases. I see the pages mentioned in https://meta.m.wikimedia.org/wiki/Community_Wishlist_Survey_2022/Editing/Select_preview_image is a trivial change to the template for example.

Change 736926 merged by jenkins-bot:

[mediawiki/extensions/PageImages@master] Allow editors control of the page image

https://gerrit.wikimedia.org/r/736926

I can QA this one.

QA in beta cluster

Pass..

1. Re: Tech News - What wording would you suggest as the content? (drafts always help!)

IIUC, something like this... (I'm not certain about the details/extent of what this affects) in the "Recent changes" section ...

You can now prevent specific images that are used in a page from appearing in other locations, such as within PagePreviews or Search results. This is done with the markup class=notpageimage. For example, [[File:Example.png|class=notpageimage]].

2. Re: docs - which pages should (or have been) updated with this new feature?

• Definitely https://www.mediawiki.org/wiki/Extension:PageImages
• Possibly https://www.mediawiki.org/wiki/Help:Images
• Maybe https://meta.wikimedia.org/wiki/Help:Images_and_other_uploaded_files

Once one of the documentation pages has been updated, we could also include a link to that, within the Tech News entry.

Edit conflict!! :D

• I have verified the change on https://en.wikipedia.org/wiki/Communist_revolution?action=info with this edit
• I have updated the docs on https://mediawiki.org/Wiki/Extension:PageImages.

I started the following topics of the only issue I am aware of:

• https://en.wikipedia.org/wiki/Template_talk:Infobox_election

@Jdlrobson Please confirm if the scope of affected pages is correct, in my draft wording above (i.e. just PagePreviews and Search results? or anything else?). Plus, thanks for the docs updates!

[EDIT: E.g. perhaps this also affects (some/all?) external websites that show link-previews automagically? ]

Wording is perfect.

Just saw this in the Tech News. The question is: does this affect the Google Search?

In T301588#7719839, @IKhitron wrote:

Just saw this in the Tech News. The question is: does this affect thd Google Search?

From a brief discussion elsewhere, I believe the answer here is: We don't know exactly how Google determines which images to use, or when to use images (in their dozens of products/platforms). I.e. This new feature might have a partial (erratic/unpredictable) affect, or a reliable affect, or no affect (on any of their products).

I see. And what about the Linter rules update?

Hello, I would like to report some further issues/testcases. I added this class on [[Template:Journalism_sidebar]] and [[Template:Politics_of_Northern_Ireland]]. Both cases do not work yet (Examples: Investigative journalism and Courts of Northern Ireland). Izno suggested that this may be an issue with a cache and that I should wait longer, which may be the case. The journalism template was edited today (March 22), while the politics template was edited on March 8.

With template changes you may need to run action=purge on individual articles to verify and apps/api will update soon after.
https://en.m.wikipedia.org/wiki/Investigative_journalism?action=info suggests this article has no page image so your change has worked. Same for Courts of Northern Ireland. Where are you seeing the image?

It does seem to be working now, thank you.

Class documented on https://www.mediawiki.org/wiki/Manual:Interface/IDs_and_classes#class-notpageimage btw.