special dialog when editing repeating events [$145]

[georgehrke]

When editing a repeating event the calendar needs a special dialog:

Do you want to change only this or this and all upcoming occurrences?

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[georgehrke]

requires #142 to be fixed

[bohni]

There should be three possibilities:

• Only this event (eg. delete/change)
• This and all upcoming events (eg. delete/change)
• All events (eg. typo in title),

[georgehrke]

I honestly don't see a need for three options. The two mentioned in the description should be just fine.

All events (eg. typo in title),

You usually don't spot a typo in a title 3 month after creating it. You will most certainly spot it right after creating the event.
Editing past events happens very very rarely. Ordinary users probably never change past events.

The ordinary use cases here are:

• location changes for one or all future occurrences. You wouldn't change the location for past events, because they already took place.
• same goes for additional attendees. New attendees for one or all future occurrences didn't attend the previous events, so why add them?
• deleting one or all future occurrences. The past ones still took place, so why remove them?

Having two or three buttons is a big difference from a usability point of view. The user has more input to parse. It clutters the interface and makes it less intuitive to use.

Would be good to get more input here. @nextcloud/calendar @jancborchardt @eppfel

[claell]

To me it seems strange to not have the option to change all events, although it might not be necessary.

Regarding typos: There can also be ones spotted some time after creation.

[raimund-schluessler]

Just for the record, Thunderbird gives

• Edit just this occurrence
• Edit all occurrences

However, I would show

• Edit just this occurrence
• Edit all future occurrences

And if 'now' is given by the selected event, you could still edit past events by navigating to the first occurrence and edit this one with 'all future occurrences' which would lead to effectively editing all occurrences.

[heikojansen]

Both Google Calendar and Novell GroupWise offer all three options (with GCal apparently resetting prior modifications to other events if "edit all events" is selected).

[bohni]

Lotus Notes even has 4 options:

• Only this entry
• All Entries
• This and all previous entries
• This and all future entries

And I would like to have the possibility to delete all entries, whether or not they took place.

[georgehrke]

This and all previous entries

Seems like Lotus Notes is still stuck on the first revision of the icalendar standard 🙈
I can't think of any legitimate use case for that.

[bohni]

I know (http://dreckstool.de/hitlist.do), that's because I first wrote about three options. And still will vote for 3 options... :-)

[github-user-1]

I opt for three options - a) this event, b) all future events, and c) all events. This is how it also done by Google-Calendar which is used by millions of people and seems to be the right way in my viewpoint to offer changes for recurring events.

[skjnldsv]

I won't mind three options imho.
But I also agree with @georgehrke pov. Too much information isn't suitable. But I could also see some uses for me that would require editing passed events too :/

[georgehrke]

Reminder to myself:

• don't use RECURRENCE-ID;RANGE=THISANDFUTURE. Support of most clients is very poor for this.
• split up event and set UNTIL on old event instead.

macOS and iOS don't support RANGE=THISANDFUTURE. According to http://stackoverflow.com/a/30343374 Google calendar does neither.

Looking at the code, lightning should actually support RANGE=THISANDFUTURE, but will work fine with splitting the event up too.
lightning (on macOS) supports it neither

[georgehrke]

requires #413

[strk]

#413 was merged, so this is open for work shall anyone want to help :)

[dehart]

Be aware that when attendees are invited to the event they get 2 emails

• an update: the current event is ending
• an invite: new series that has started.

Range property solves this but these are my test results:

• Google Calender: I imported an ICS with THISANDFUTURE and it would ignore and remove the property. When using the Android app and tap "This and future occurrences" It would set the until date and create a new event
• Thunderbird/Lightning has a bug open for 12 years: https://bugzilla.mozilla.org/show_bug.cgi?id=320178
• SabreDAV support is incomplete: https://github.com/fruux/sabre-vobject/blob/bbf592106835cdb860135c39906d089f62c260fa/lib/Recur/EventIterator.php#L55
• Apple's CalendarServer: Not sure but they seem to have tests: https://lists.macosforge.org/pipermail/calendarserver-changes/2010-January/004916.html

Sad but true
Test file:

BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//GEDIT//NONSGML Version 1//EN
BEGIN:VEVENT
UID:1337-range-test@michael
DTSTART;VALUE=DATE:20170501
DURATION:P1D
DTSTAMP:20170401T160000Z
RRULE:FREQ=WEEKLY
STATUS:CONFIRMED
SUMMARY:Range-test: Weekly
END:VEVENT
BEGIN:VEVENT
UID:1337-range-test@michael
RECURRENCE-ID;RANGE=THISANDFUTURE;VALUE=DATE:20170605
DTSTART;VALUE=DATE:20170605
DURATION:P1D
DTSTAMP:20170401T160000Z
SUMMARY:Range-test: Changed
END:VEVENT
END:VCALENDAR

[georgehrke]

@dehart As I said just two comments above, let's not use range, just split up and set until on the first one. ;)

#7 (comment)

[scroom]

I just raised the bounty with $25.

[tcitworld]

People, please stop replying to off-topic messages or we'll have to lock the issue.

[kritschy]

Would be nice, if an e.g. every month repeated event could be stopped in a certain period.

[sherpadawan]

Any news ? Does not seem to work now on the last agenda plugin version !

[executed]

Is there a reason or active issue why this was added only as a button in the event details view and not also as a prompt when just shifting the event's time?