Kyslik\ColumnSortable\Exceptions\ColumnSortableException::__construct PHP Method

    public function __construct($message = '', $code = 0, Exception $previous = null)
    {
        switch ($code) {
            case 0:
                $message = 'Invalid sort argument.';
                break;
            case 1:
                $message = 'Relation \'' . $message . '\' does not exist.';
                break;
            case 2:
                $message = 'Relation \'' . $message . '\' is not instance of HasOne or BelongsTo.';
                //hasMany
                break;
        }
        parent::__construct($message, $code, $previous);
    }