private function update( $data ) {

		global $wpdb;
		$format = array_map( array( $this, 'get_column_format' ), array_keys( $data ) );
		$where  = array_combine( array_keys( $this->primary_key ), array( $this->id ) );
		$res    = $wpdb->update( $this->get_table(), $data, $where, $format, array_values( $this->primary_key ) ); // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery
		if ( $res ) {

			/**
			 * Fires when a new database record is updated.
			 *
			 * The dynamic portion of this hook, `$this->type`, refers to the record type.
			 *
			 * @since Unknown.
			 *
			 * @param int                          $id  Record ID.
			 * @param LLMS_Abstract_Database_Store $obj Instance of the record object.
			 */
			do_action( "llms_{$this->type}_updated", $this->id, $this );

			return true;
		}
		return false;

	}