BuddyPress - add message button in members loop

gistfile1.php

function filter_message_button_link( $link ) {
	$link =  wp_nonce_url( bp_loggedin_user_domain() . bp_get_messages_slug() . '/compose/?r=' . bp_core_get_username( bp_get_member_user_id() ) );
	return $link;
}

function display_private_message_button() {
	if( bp_get_member_user_id() != bp_loggedin_user_id() ) {
		bp_send_message_button();
		add_filter('bp_get_send_private_message_link', 'filter_message_button_link', 1, 1 );
	}
}
add_action( 'bp_directory_members_item', 'display_private_message_button' );