[SOLVED] Registering directly in a group. Action secured by a field

Hello,
I'd like to manage this kind of situation :
- a group is created (I don't know if it is in groupjive or somewhere else)
- somebody is invited to register to this group. For this, the name of the group and a "password/code" has been sent before by mail
- when he registers, he indicates the name of the group and the "password/code" in the registration form

> how do I construct the register form to have these two conditions :
- verify that the group name exists
and
- verify that the "password/code" is the good password/code of this group
If it is ok,
the person is registered and part of this group,
else
he stays on the form page to check the group name or code.

I searched old subjects, but couldn't find way to do this.

thank you for your help,

Carolyn

I Found CB invit, I will try with this first.

Depends on what you mean by group. What significance is there to the group? If it's supposed to be a community group then sure CB GroupJive can provide some of what you're asking as it has an Invite type where users have to be invited to join, but it has no registration validation of this. CB Invites can be used to invite other users to join the site it self and comes with a field that can be set to required on registration so everyone must be invited, but it has nothing to do with groups.

thank you, cb invit did the trick.