Change user profile URL in Buddypress with nickname or userID - wordpress

Question

I am using this code which is partially working for changing the profile url everywhere in buddypress and wordpress from “http:/mywebsite/user/username” to “http:/mywebsite/user/userid”
function _bp_core_get_user_domain($domain, $user_id, $user_nicename = false, $user_login = false) {
if ( empty( $user_id ) ){
return;
}
if( isset($user_nicename) ){
$user_nicename = bp_core_get_username($user_id);
}
$after_domain = bp_get_members_root_slug() . '/' . $user_id;
$domain = trailingslashit( bp_get_root_domain() . '/' . $after_domain );
$domain = apply_filters( 'bp_core_get_user_domain_pre_cache', $domain, $user_id, $user_nicename, $user_login );
if ( !empty( $domain ) ) {
wp_cache_set( 'bp_user_domain_' . $user_id, $domain, 'bp' );
}
return $domain;
}
add_filter('bp_core_get_user_domain', '_bp_core_get_user_domain', 10, 4);
function _bp_core_get_userid($userid, $username){
if(is_numeric($username)){
$aux = get_userdata( $username );
if( get_userdata( $username ) )
$userid = $username;
}
return $userid;
}
add_filter('bp_core_get_userid', '_bp_core_get_userid', 10, 2);
function _bp_get_activity_parent_content($content){
global $bp;
$user = get_user_by('slug', $bp->displayed_user->fullname); // 'slug' - user_nicename
return preg_replace('/href=\"(.*?)\"/is', 'href="'.bp_core_get_user_domain($user->ID, $bp->displayed_user->fullname).'"', $content);
}
add_filter( 'bp_get_activity_parent_content','_bp_get_activity_parent_content', 10, 1 );
add_filter('bp_core_get_userid_from_nicename', '_bp_core_get_userid', 10, 2);
It is working perfectly for me at the moment BUT not on this little place (see picture):
http://i.imgur.com/4dX0RUB.png
– url change of the author of an activity starting-message is not working in both groups activities and personnal activities
url change of the author of an activity REPLY is working
I don’t know if I am explaining very well what issue I have got but I hope you will understand.
Thank you for your answers
PS : thanks to aSeptik from StackExchange for the code

Answer 1

It's impossible to do that on a fly gracefully. BuddyPress Activity component is developed in such a way, that those text with the user link in activity stream (for site-wide, personal and groups) is stored directly in the database as an action. Just take a look at wp_bp_activity.action field in your DB.
So you should filter and preg_replace it as well. I guess you know that you are penalting yourself with rendering speed loss.