(Enhancement) Add Poll Options to User's Calendar in Case of Meeting Poll

[gohrner]

It would be nice to be able to integrate the poll app with the calendar app more closely.

1. For one, it woud be good to see the meetings being polled as (preliminary) events in ones own Calendar.
2. Second, it would be a nice feature to somehow see (colliding / neighbouring) events from ones own Calendar in the poll view, so I can easier cast my vote based on an informed decision. This way, jumping between Polls app and Calendar app would not be necessary as often.

[dartcafe]

Similar to #400. I hope, we can do it with an ICS feed.

[bencomp]

I think it would help to create a good overview if time slots have a start and end (as mentioned in #201), although a (configurable) default length could be a workaround for not having end times.

[jancborchardt]

Was just talking about this with @georgehrke as well (cc @tcitworld). When you are in a Poll, it could show your free/busy info while you are making the decisions?

[dartcafe]

@jancborchardt @georgehrke
I need a hint how to build the $options for ICalendar::search

I tried:

$from = new DateTime('2020-02-05');
$to = new DateTime('2020-02-06');
$calendar->search('' ,['SUMMARY'], ['timerange' => ['start' => $from, 'end' => $to]])

But i get
Undefined property: DateTime::$getTimeStamp at /www/htdocs/w017b2c3/instances/dev/server/apps/dav/lib/CalDAV/CalDavBackend.php#1561

[tcitworld]

You found the bug yourself. :)

[dartcafe]

@georgehrke
Not sure, if I found a bug or if I don't understand things right. I tried to make a pull request:
nextcloud/server#18679

[dartcafe]

Ups. @tcitworld What do you mean? the PR

[dartcafe]

Was just talking about this with @georgehrke as well (cc @tcitworld). When you are in a Poll, it could show your free/busy info while you are making the decisions?

@jancborchardt First attempt: #747