public function get_user_favorites() {
		if ( null === $this->user_favorites ) {
			if ( is_user_logged_in() ) {
				$user_favorites       = bp_activity_get_user_favorites( get_current_user_id() );
				$this->user_favorites = array_filter( wp_parse_id_list( $user_favorites ) );
			} else {
				$this->user_favorites = array();
			}
		}

		return $this->user_favorites;
	}