Source Reference:

• Component: BuddyPress :: bp-members

  File: /bp-members/bp-members-functions.php :: Trac Source Line: 126

  		// Add a slash at the end, and filter before caching
  		$domain = apply_filters( 'bp_core_get_user_domain_pre_cache', trailingslashit( $domain ), $user_id, $user_nicename, $user_login );
  
  		// Cache the link
  		if ( !empty( $domain ) )
  			wp_cache_set( 'bp_user_domain_' . $user_id, $domain, 'bp' );
  	}
  
  	return apply_filters( 'bp_core_get_user_domain', $domain, $user_id, $user_nicename, $user_login );
  }
  
  /**
   * Fetch everything in the wp_users table for a user, without any usermeta.
   *
   * @package BuddyPress Core
   * @param user_id The ID of the user.
   * @uses BP_Core_User::get_core_userdata() Performs the query.
   */
  function bp_core_get_core_userdata( $user_id ) {