On 4/9/07, Gunter Leeb <Gunter.Leeb@mediaprint.at> wrote:

Hi,

I found the GroupService as in:

context.getWiki().getGroupService(context).addUserToGroup(user,
database, group, context);

This GroupService interface allows me to locate users in a group and
even add a user to a group.

I just looked at the GroupService code, and it seems that addUserToGroup does not actually add the user to the group, only to a cache that lists the groups a user is in. This means that you need to find another way to actually add users to a group.

I don't see a method to remove a user from an XWiki group. How to do
that in plug-in code?

Basically you have to find the XObject attached to that group that has the username as the only value and delete that object.