Change #1128454 had a related patch set uploaded (by Daimona Eaytoy; author: Daimona Eaytoy):

[mediawiki/extensions/CampaignEvents@master] Validate event page namespace when enabling registration

https://gerrit.wikimedia.org/r/1128454

Change #1128539 had a related patch set uploaded (by Daimona Eaytoy; author: Daimona Eaytoy):

[mediawiki/extensions/CampaignEvents@master] Skip event page namespace validation on edits when page is unchanged

https://gerrit.wikimedia.org/r/1128539

Change #1128454 merged by jenkins-bot:

[mediawiki/extensions/CampaignEvents@master] Validate event page namespace when enabling registration

https://gerrit.wikimedia.org/r/1128454

Change #1128539 merged by jenkins-bot:

[mediawiki/extensions/CampaignEvents@master] Skip event page namespace validation on edits when page is unchanged

https://gerrit.wikimedia.org/r/1128539

Community configuration is not yet available, but this can be tested as a normal config setting, with something like $wgCampaignEventsEventNamespaces = [ NS_MAIN, NS_EVENT, NS_PROJECT ];.

Given that I am allowed to organize events:

When I create an event using Special:EnableEventRegistration
AND there is a single permitted namespace for event registration
✅ Then the event page field will autocomplete page titles for that namespace only.

does not autocomplete for pages outside of namespace

When I create an event using Special:EnableEventRegistration
AND there are more than one permitted namespace for event registration
✅ Then the event page field will autocomplete page titles for all namespaces, not just the allowed ones (this limitation is addressed in T38908).

allowed namespace	not allowed namespace

When I create an event using Special:EnableEventRegistration
AND the selected namespace is in the list configured in community configuration (T387966)
✅ Then the event will be created successfully.
QA note - this is just a local test

When I create an event using Special:EnableEventRegistration
AND the selected namespace is NOT in the list configured in community configuration (T387966)
Then the event will be NOT be created successfully
✅ AND an error will be shown with the text below.

single namespace	multiple namespaces

When I edit an event using Special:EditEventRegistration
AND the event page namespace is NOT in the list of allowed namespaces
AND I do NOT modify the event page
❌ Then the event will be edited successfully

@Daimona When I remove a namespace after the namespace has already been created then I can no longer successfully edit the event. See above gif, removing the project namespace.

When I edit an event using Special:EditEventRegistration
AND the event page namespace is NOT in the list of allowed namespaces
AND I modify the event page
AND the new event page is not in a permitted namespace
Then the event will be NOT be edited successfully
✅ AND an error will be shown with the text below.

multiple namespaces	single namespace

Change #1133449 had a related patch set uploaded (by Daimona Eaytoy; author: Daimona Eaytoy):

[mediawiki/extensions/CampaignEvents@master] Consider current namespace as valid in Special:EditEventRegistration

https://gerrit.wikimedia.org/r/1133449

In T387967#10704403, @vaughnwalters wrote:

@Daimona When I remove a namespace after the namespace has already been created then I can no longer successfully edit the event. See above gif, removing the project namespace.

Can confirm this, should be a small fix.

Change #1133449 merged by jenkins-bot:

[mediawiki/extensions/CampaignEvents@master] Consider current namespace as valid in Special:EditEventRegistration

https://gerrit.wikimedia.org/r/1133449

In T387967#10704682, @Daimona wrote:

In T387967#10704403, @vaughnwalters wrote:

@Daimona When I remove a namespace after the namespace has already been created then I can no longer successfully edit the event. See above gif, removing the project namespace.

Can confirm this, should be a small fix.

When I edit an event using Special:EditEventRegistration
AND the event page namespace is NOT in the list of allowed namespaces
AND I do NOT modify the event page
✅ Then the event will be edited successfully

This is functioning as expected now. All AC met (also see T387967#10704403). Moving to design sign off.

this looks good to me, thanks all! moving to product sign off