fix(caldav-delegation): send notification to delegator

[hamza221]

• ref: Calendar delegation calendar#2706

Summary

Sends notifications to delegator for actions taken on his behalf by delegate

Create	update	move/delete	restore	permenant deletion

Testing

Should work out of the box but :
If you need the frontend checkout

• feat: add calendar delegation cdav-library#1040
• Feat/add calendar delegation features calendar#8085

If you need trashbin:

• cherry-pick fix: access shared and delegated trashbin objects #60648

Checklist

• Code is properly formatted
• Sign-off message is added to all commits
• Tests (unit, integration, api and/or acceptance) are included
• Screenshots before/after for front-end changes
• Documentation (manuals or wiki) has been updated or is not required
• Backports requested where applicable (ex: critical bugfixes)
• Labels added where applicable (ex: bug/enhancement, 3. to review, feature component)
• Milestone added for target branch/version (ex: 32.x for stable32)

AI (if applicable)

• The content of this PR was partly or fully generated using AI

[hamza221]

/backport to stable34

[hamza221]

/backport to stable33

[hamza221]

/backport to stable32

[SebastianKrupinski]

Hey,

If I am reading this correctly, you are using a global context class to transport data from the plugin to the event listener. This is a bad idea, in my opinion.

Also this plugin is only really needed in one instance on update, that is wasteful and the calendar object update event already emits the new data:

CalendarObjectUpdatedEvent

What you do need is the CalendarObjectUpdatedEvent to also carry previous data, I would extend the event to also emit the previous object data also. It is only emitted in one place so you are save to change it.

I would recommend changing the updateCalendarObject method to first pull the existing record, then updated it and then use can use the array for both new and previous, just replace record in the array with the new data from $extraData

server/apps/dav/lib/CalDAV/CalDavBackend.php

Line 1460 in 8609cd4

public function updateCalendarObject($calendarId, $objectUri, $calendarData, $calendarType = self::CALENDAR_TYPE_CALENDAR) {

[SebastianKrupinski]

Please see comments above