DALTruncateParser.inc

<?php
require_once 'DAL/Parsers/DALQueryParser.inc';
require_once 'DAL/DALBaker.inc';
require_once 'DAL/Parsers/DALWhereParser.inc';

class DALTruncateParser extends DALQueryParser
{


    private function __construct()
    {

    }//end __construct()


    public static function parse(DomElement $xmlQuery)
    {
        $query     = array();
        $deleteTag = $xmlQuery->getElementsByTagName('truncate')->item(0);

        if ($deleteTag !== NULL) {
            $query['TRUNCATE'] = array();

            // There must be a where tag and should have been checked before.
            $tableTag = $deleteTag->getElementsByTagName('table')->item(0);
            $query['TRUNCATE']['from'] = $tableTag->nodeValue;
        }//end if

        return $query;

    }//end parse()


    public static function validate(DomElement $query)
    {
        $deleteTag = $query->getElementsByTagName('truncate')->item(0);
        if ($deleteTag === NULL) {
            throw new DALParserException('Truncate tag not found.');
        }

        // Must have where tag.
        $tableTag = $deleteTag->getElementsByTagName('table')->item(0);
        if ($tableTag === NULL) {
            $msg = 'Truncate queries must have a table tag, specifying the table to be cleared.';
            throw new DALParserException($msg);
        } else if (trim($tableTag->nodeValue) === '') {
            $msg = 'Truncate queries must have a table tag, specifying the table to be cleared.';
            throw new DALParserException($msg);
        }

    }//end validate()


}//end class

?>