Calendar and Hooks

mpellegrin · January 23, 2017, 6:21pm

Hi,

The old Calendar emitted several hooks that were very handy to catch in a custom app, but the new Calendar app (>= ownCloud 9) is missing them.

How can I add these hooks to the code of the new app ?

In the old app it was located in apps/calendar/lib/calendar.php and apps/calendar/lib/object.php :

OCP\Util::emitHook('OC_Calendar', 'addCalendar', $insertid);
OCP\Util::emitHook('OC_Calendar', 'editCalendar', $id);
OCP\Util::emitHook('OC_Calendar', 'deleteCalendar', $id);
OCP\Util::emitHook('OC_Calendar', 'addEvent', $id);
OCP\Util::emitHook('OC_Calendar', 'editEvent', $id);
OCP\Util::emitHook('OC_Calendar', 'deleteEvent', $id);

...

I found two files in the new calendar app that could be the triggering sources, but I don’t know how they are connected and which one is the best choice :

businesslayer/objectbusinesslayer.php
controller/objectcontroller.php

and :

businesslayer/calendarbusinesslayer.php
controller/calendarcontroller.php

Could you explain to me the logic between these files (controller / businesslayer), and/or indicate the best “emit place” to create these hooks in the Calendar app ?

Also, I suppose that it will work when the calendar is used with an external software, using CalDAV ?

By the way, do you know why these hooks were removed from the new app ?

tflidd · January 23, 2017, 9:04pm

It’s a new, rewritten app. So it hasn’t been remove, it wasn’t implemented.

@georgehrke can perhaps help you…

georgehrke · January 23, 2017, 9:24pm

Where did you find this? oO

This was removed years ago

These hooks were removed, because the CalDAV server moved from the calendar app to a dedicated dav app.
This dav app also provides hooks, just with a different name

github.com

nextcloud/server/blob/master/apps/dav/lib/CalDAV/CalDavBackend.php#L625


      
          		$query = $this->db->getQueryBuilder();
          		$query->select($fields)->from('calendars')
          			->where($query->expr()->eq('uri', $query->createNamedParameter($uri)))
          			->andWhere($query->expr()->eq('principaluri', $query->createNamedParameter($principal)))
          			->setMaxResults(1);
          		$stmt = $query->executeQuery();
          
          		$row = $stmt->fetch();
          		$stmt->closeCursor();
          		if ($row === false) {
          			return null;
          		}
          
          		$row['principaluri'] = (string) $row['principaluri'];
          		$components = [];
          		if ($row['components']) {
          			$components = explode(',', $row['components']);
          		}
          
          		$calendar = [
          			'id' => $row['id'],

mpellegrin · January 23, 2017, 11:00pm

Where did you find this? oO
This was removed years ago

Well, I probably have messed up the branches when I checked out the repository, I should learn how to properly use git, I guess

Thanks a lot for you answer, these are the hooks I was looking for