Brajesh made me a code snippet some time ago.

It was made to add a new registering user that is registering to a subsite be added to that subsite’s users and not the main sites user’s.
When using BuddyPress Multi Network.

For example: If you have mainsite.com and you have someone that signs up @mainsite.com and creates a new blog in with Multisite.

This new user gets subsite1.mainsite.com

Then subsite1 has buddypress activated locally on subsite1 along with BuddyPress Multi Network so they can have a private buddypress network just for subsite1’s users.

So when the admin for subsite1 get’s users to sign up to their subsite, he/she wants those users to be a member of the subsite only and not part of the main sites users.

For a little while this was possible due to Brajesh writing a wonderful little snippet that mad this possible. Now this snippet has stopped working. Now when a user signs up to the subsite, that user is not added to any user base. Neither the main site or subsite.

Below is the depreciated snippet that Brajesh wrote:

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Please put this code in your bp-custom.php

add_action( 'bp_core_activated_user', 'bpdev_add_user_to_registering_blog');

function bpdev_add_user_to_registering_blog( $user_id ) {
$blog_id = get_current_blog_id();
if( !is_user_member_of_blog($user_id, $blog_id ) )
add_user_to_blog( $blog_id, $user_id, get_option('default_role') );

}

That will add a user to the registering blog when he activates his/her account.

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Any help would be greatly appreciated.