SelectColumnsTag.class.php

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<?php
/* Copyright (C) NAVER <http://www.navercorp.com> */

class SelectColumnsTag
{

    var $columns;

    function __construct($xml_columns_tag)
    {
        if(!$xml_columns_tag)
        {
            $xml_columns_tag = new Xml_Node_();
        }

        $xml_columns = $xml_columns_tag->column;
        $xml_queries = $xml_columns_tag->query;

        $this->columns = array();

        if(!$xml_columns)
        {
            $this->columns[] = new SelectColumnTag("*");
            return;
        }

        if(!is_array($xml_columns))
        {
            $xml_columns = array($xml_columns);
        }

        foreach($xml_columns as $column)
        {
            $this->columns[] = new SelectColumnTag($column);
        }


        if(!$xml_queries)
        {
            return;
        }

        if(!is_array($xml_queries))
        {
            $xml_queries = array($xml_queries);
        }

        foreach($xml_queries as $column)
        {
            $this->columns[] = new QueryTag($column, TRUE);
        }
    }

    function toString()
    {
        $output_columns = 'array(' . PHP_EOL;
        foreach($this->columns as $column)
        {
            if(is_a($column, 'QueryTag'))
            {
                $output_columns .= $column->toString() . PHP_EOL . ',';
            }
            else
            {
                $output_columns .= $column->getExpressionString() . PHP_EOL . ',';
            }
        }
        $output_columns = substr($output_columns, 0, -1);
        $output_columns .= ')';
        return $output_columns;
    }

    function getArguments()
    {
        $arguments = array();
        foreach($this->columns as $column)
        {
            if(is_a($column, 'QueryTag'))
            {
                $arguments = array_merge($arguments, $column->getArguments());
            }
        }
        return $arguments;
    }

}
/* End of file SelectColumnsTag.class.php */
/* Location: ./classes/xml/xmlquery/tags/column/SelectColumnsTag.class.php */