BuddyPress.org

Hello,
I am looking at the time of the connection of a member to change the role IF it has a role and a specific xprofile field.
The following program end does not work (and no message)

add_action('wp_login', 'change2', '99', 2); 
 function change2($user_login, $user) { 
   $user_id = $user->ID; 
   $field_XYZ = 'XYZ'; 
   $XYZ = xprofile_get_field_data($field_XYZ,$bp->loggedin_user->id ); //  $user_id );
   if ( $user->has_cap('membre1') && ($XYZ='fsdfdsfd')) {
     ..
     do_action ...
     $user_id->add_role( 'membre2' ); 	}
  }

Regards