The Secret Life of Calendar Groups in Calendar Server 6.3 and Communications Express 6.3

We've been having an internal discussion about a 'new' feature in Calendar Server 6.3, namely, Calendar Groups, and how all this fits in with Calendar Server and Communications Express. According to the Calendar Server Release Notes:

Support for LDAP Groups in Calendar Server 6.3

It is now possible to create LDAP groups using Delegated Administrator. Groups have the following functionality:

  • A group is a list of users. The group does not “contain” the listed users. It is not a container.

  • A group can have a group calendar.

  • Invitations sent to a group reside on all the members' calendars, as well as the group calendar.

  • All members of the group share the same access rights to the group calendar.

  • There is no primary owner for a group calendar.

    - This should be corrected to: The group calendar does have an owner, and can have co-owners too.

Clarifying these points, then, with some discussion that took place today:

  • The group calendar that you create through Delegated Administrator is a Corporate Group--different from your usual Personal Group (created through the Communications Express Addressbook).
  • When subscribing to a group calendar through the Communications Express interface, you subscribe to the Personal not Corporate group. That is, the CE interface does not access the group calendar created in the LDAP directory (by using DA).
  • The cscal command manages calendars in the Calendar Database not the LDAP directory. Thus, if you go looking for your LDAP group calendar with cscal, you won't find it initially (see below for more info).
  • When you invite the LDAP group calendar, member calendars added to the group get the events. There is no 'physical' calendar for the group calendar but the individual user's (member's) calendars.
  • To manage a group calendar, you actually manage the member's calendars (in Comms Express).
  • Calendar Groups can be used for limited functionality, including invite to event, check availability, compose mail to group, and view calendar from Addressbook (in Comms Express).
  • Currently, when you create the group calendar, you must then access it the first time (use it in an invite, for example) before it 'shows up' using the cscal command. Unfortunately--and this is a big unfortunately--currently there is no client today with which you an invite the calendar.
I hope this explanation helps in how to use (or not use) the current implementation of group calendars in Calendar Server and Communications Express. Questions anyone?
Comments:

I think for lack of enough reasons the support on uwc side was pushed out of jes5 plans. And we face the same situation in cascabel too, don't have enough convincing reasons so far to implement it on client side. Outlook connector also doesn't seem to support it.

Posted by Umesh on April 08, 2007 at 06:13 PM MDT #

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