feat: allow attendees to add guests to an event by kesselb · Pull Request #8719 · nextcloud/calendar

kesselb · 2026-08-11T19:27:58Z

Organizers get a setting to let attendees of an event invite further people. Attendees can then add guests even though the event is otherwise read-only for them, and remove them again until the event is saved.

The server reports guests off the base instance only, so the option needs the dav attendee_guests capability and is hidden for recurring events.

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codecov · 2026-08-11T19:29:40Z

Codecov Report

❌ Patch coverage is 73.33333% with 4 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
src/store/calendarObjectInstance.js	0.00%	3 Missing ⚠️
src/models/event.js	50.00%	1 Missing ⚠️

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Pull request overview

Adds attendee-managed guest invitations, gated by the dependent server capability.

Changes:

Adds the organizer setting and event-property persistence.
Allows attendees to add and temporarily remove guests.
Adds capability and eligibility tests.

Reviewed changes

Copilot reviewed 10 out of 10 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
`src/components/Editor/Invitees/InviteesList.vue`	Enables guest management.
`src/components/Editor/Invitees/InviteesListItem.vue`	Adds temporary guest removal.
`src/mixins/EditorMixin.js`	Computes guest-invitation eligibility.
`src/mixins/PropertyMixin.js`	Registers the setting icon.
`src/models/event.js`	Maps the new event property.
`src/store/calendarObjectInstance.js`	Updates the persisted property.
`src/views/EditFull.vue`	Adds setting and guest controls.
`src/views/EditSimple.vue`	Enables guest controls.
`tests/javascript/unit/mixins/EditorMixin.test.js`	Tests eligibility rules.
`tests/javascript/unit/models/event.test.js`	Updates model expectations.

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+		isForwardedByMe(attendee) {
+			// Not once the editor switched to viewing, because the guest reached
+			// the organizer by then and only they can remove an attendee
+			return this.canAddGuests
+				&& this.forwardedAttendees.includes(removeMailtoPrefix(attendee.uri))


 							:value="invitationForwarding"
 							@update:value="updateInvitationForwarding" />
+						<PropertySelect
+							v-if="showAllowAttendeeGuests"


ChristophWurst · 2026-08-13T08:48:55Z

Not sure about the approach tbh. Why do we need an additional "setting"/property and can not leverage the forwarding allowed condition?

SebastianKrupinski · 2026-08-17T03:29:48Z

 		<InviteesListSearch
-			v-if="!isReadOnly && hasUserEmailAddress"
+			v-if="(!isReadOnly || canAddGuests) && hasUserEmailAddress"
 			:alreadyInvitedEmails="alreadyInvitedEmails"
 			:organizer="calendarObjectInstance.organizer"
 			@addAttendee="addAttendee" />
 		<OrganizerListItem
 			v-if="hasOrganizer"
 			:isReadOnly="isReadOnly"
 			:isSharedWithMe="isSharedWithMe"
 			:organizer="calendarObjectInstance.organizer"
 			:organizerSelection="organizerSelection"
 			:isViewedByOrganizer="isViewedByOrganizer"
 			@changeOrganizer="changeOrganizer" />
 		<InviteesListItem
 			v-for="invitee in limitedInviteesWithoutOrganizer"
 			:key="invitee.email"
 			:attendee="invitee"
 			:isReadOnly="isReadOnly"
+			:canRemove="isForwardedByMe(invitee)"
 			:organizerDisplayName="organizerDisplayName"
 			:members="invitee.members"
 			:isViewedByOrganizer="isViewedByOrganizer"
 			@removeAttendee="removeAttendee" />


Wasn't able to test this, the ability to add a guest is not working:

BEGIN:VEVENT CREATED:20260817T025600Z DTSTAMP:20260817T025715Z LAST-MODIFIED:20260817T025715Z SEQUENCE:3 UID:0c502dd7-9a7c-4488-8536-c4ba1de5db7e DTSTART;TZID=Asia/Tashkent:20260820T100000 DTEND;TZID=Asia/Tashkent:20260820T110000 TRANSP:OPAQUE STATUS:CONFIRMED X-NC-INVITATION-FORWARDING:TRUE SUMMARY:This is a test event ATTENDEE;CN=user2@;CUTYPE=INDIVIDUAL;PARTSTAT=NEEDS-ACTION;ROLE= REQ-PARTICIPANT;RSVP=TRUE:mailto:user2@ ORGANIZER;CN=User One:mailto:user1@ END:VEVENT

The option to add guests as attendee is only shown when the event contains X-NC-ALLOW-ATTENDEE-GUESTS: TRUE (which is part of nextcloud/server#63167).

I created the event with the server PR active, as user 1, then set the forwarding to yes, and logged in as user 2 to add an attendee, but was not able to do so.

I think those are the correct steps??

There's a new option below forwarding:

Should probably switch the order (guests before invitation forwarding). The original plan was to connect it to the forwarding toggle. I'd switched to a own flag, because the default for forwarding is true (to keep the behavior unchanged for 3rdparty clients) and the flag for add guests as attendee should be off by default.

I don't think this is showing for me...

I am pretty sure I have the correct branches

SebastianKrupinski · 2026-08-17T03:33:25Z

+			calendarObjectInstance.eventComponent.updatePropertyWithValue('X-NC-ALLOW-ATTENDEE-GUESTS', allowAttendeeGuests)
+			calendarObjectInstance.allowAttendeeGuests = allowAttendeeGuests


I think this should be... "X-NC-INVITATION-FORWARDING"

SebastianKrupinski · 2026-08-17T03:39:19Z

+			if (loadState('core', 'capabilities', {})?.dav?.attendee_guests !== true) {
+				return false
+			}


You prefer to check against the server version?

Oh, this is a check to see if the server supports the guests feature. Okay, now i understand.

Ummm I am in different to it, I don't think we use this anywhere else... so we can but I would change the flag to something self exploratory... supports_attendee_guests and the comment should reflect what we are doing

Organizers get a setting to let attendees of an event invite further people. Attendees can then add guests even though the event is otherwise read-only for them, and remove them again until the event is saved. The server reports guests off the base instance only, so the option needs the dav attendee_guests capability and is hidden for recurring events. Assisted-by: ClaudeCode:claude-opus-5 Signed-off-by: Daniel Kesselberg <mail@danielkesselberg.de>

kesselb self-assigned this Aug 11, 2026

kesselb added the 3. to review Waiting for reviews label Aug 11, 2026

kesselb requested review from GVodyanov and SebastianKrupinski as code owners August 11, 2026 19:27

kesselb added the enhancement New feature request label Aug 11, 2026

kesselb requested a review from tcitworld as a code owner August 11, 2026 19:27

kesselb requested a balanced review from Copilot and removed request for GVodyanov, SebastianKrupinski and tcitworld August 11, 2026 19:28

kesselb mentioned this pull request Aug 11, 2026

feat(caldav): allow attendees to add guests to an event nextcloud/server#63167

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Copilot started reviewing on behalf of kesselb August 11, 2026 19:29 View session

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SebastianKrupinski reviewed Aug 17, 2026

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kesselb force-pushed the invitation-forwarding-by-attendee-ui branch from 1eafe63 to 4dd461e Compare August 18, 2026 13:06

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feat: allow attendees to add guests to an event - #8719

feat: allow attendees to add guests to an event#8719
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		calendarObjectInstance.eventComponent.updatePropertyWithValue('X-NC-ALLOW-ATTENDEE-GUESTS', allowAttendeeGuests)
		calendarObjectInstance.allowAttendeeGuests = allowAttendeeGuests

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kesselb commented Aug 11, 2026 •

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