Grouper Users - Open Discussion List

["GW Brown, Information Systems and Computing" <>]

Hi Loris,

Comments below.

Gary

--On 10 March 2009 08:54 +0000 "Dr. Loris Bennett" 
<> wrote:

> Hi,
>
> I am planning to introduce unix-like group IDs for some groups within
> grouper. Currently I have:
>
> - A custom type with a group ID as an attribute
> - A database sequence for the IDs
> - A hook which inserts an ID from the sequence when a group is created
> with the   corresponding custom type.
>
> What I still need are:
>
> - A mechanism to ensure that an ID is not used more than once (e.g. some
> sort of DB constraint on the attribute value)
> - A mechanism to prevent the ID being changed (probably just setting the
> write privilege accordingly)
I imagine this should be done by hooks. Perhaps the 
GroupAttributeNameValidationHook could have a pluggable mechanism where 
regex is just one of the options

> - Perhaps a view of display names and group IDs
Would you want the unix id to always be shown when the group is or in some 
specific context?

The way group names are displayed isn't as tidy as it could/should be, but 
is something that could be improved
> Since it seems to me that this is a rather general feature that others
> might require, I was wondering whether:
>
> a) anyone has already done this
I'm sure others intend to use groups similarly but I don't know if they 
have hooks to implement the constraints
> b) whether, should there be interest, such a feature could be packaged
> as an add-on for grouper
>
> Thoughts?
I think that would be a good idea as it should be a common requirement. The 
means of obtaining a new id should be abstract so sites can implement their 
own mechanism.
> Loris
>
> --
> Dr. Loris Bennett (Mr.)
> Freie Universität Berlin
> ZEDAT - Zentraleinrichtung für Datenverarbeitung / Computer Center
> Compute & Media Service
> Fabeckstr. 32, Room 221
> D-14195 Berlin
> Tel ++49 30 838 51024
> Fax ++49 30 838 56721
> Email 
>
> Web www.zedat.fu-berlin.de



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GW Brown, Information Systems and Computing