[Wiki] created: KronolithCustomEvents

guest [81.82.227.15]  Fri, 27 Nov 2009 08:12:43 -0500

Created page: http://wiki.horde.org/KronolithCustomEvents

> I want to show events from an external source in the Kronolith  
> calendar views. I don't want to do this by exporting the events to  
> iCal and then showing them as an external calendar. The events are  
> grouped in multiple calendars, the user should be able to  
> disable/enable these calendars.

([http://stackoverflow.com/questions/1808104/how-to-show-custom-events-to-a-kronolith-calendar Also posted on Stack  
Overflow])

You can do this by implementing the {{listTimeObjects}} and  
{{listTimeObjectCategories}} API calls. [http://www.horde.org/nag/  
Nag] (task list) and [http://www.horde.org/whups/ Whups] (ticket  
tracking) do it this way. If you are using the Git version, you can  
use [http://theupstairsroom.com/93 TimeObjects], which wraps  
everything up in a nice class.

Kronolith calls these functions in {{initialize()}} (when filling  
{{$all_external_calendars}}) and {{listEvents()}}. It searches all  
APIs for this function, so you can register it with your own prefix.

//timeObject// is a generic name for "things that can be shown on a  
calendar", like events, task due dates, ... A //timeObjectCategory//  
is a group of //timeObjects//, which can be enabled or disabled in a  
group by the user. (In the default layout: using the panel in the  
upper-right corner of the calendar view, "Calendars".)

Your implementation for {{listTimeObjectCategories}} should return an  
array, with a category id as the key, and the user-visible name as the  
value. The category id's are also shown at the bottom of the calendar,  
and the user can define colors for them.

{{listTimeObjects}} is called with the currently selected categories  
(an array of id's), and a start and end date. These dates might  
already be {{Horde_Date}} objects (to be sure, convert them again:  
{{$start = new Horde_Date($start)}}).

You should return an array of //timeObjects// that belong to these  
categories and fall in the specified time range. The keys are event  
id's, the values are arrays with values for the following keys:

* {{id}}
* {{title}}
* {{description}}
* {{start}} ({{Horde_Date}} or timestamp)
* {{end}} ({{Horde_Date}} or timestamp)
* {{category}} (Category id)
* {{params}}

If you register the {{show}} API call, this will be used for creating  
the link to the //timeObject// detail.


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