PHP Classes

File: Sql_Parser/Sql_ParserDelete.class.php

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  Classes of Tom Schaefer   SQL Parse and Compile   Sql_Parser/Sql_ParserDelete.class.php   Download  
File: Sql_Parser/Sql_ParserDelete.class.php
Role: Class source
Content type: text/plain
Description: parses delete statement into object
Class: SQL Parse and Compile
Parse and compose SQL queries programatically
Author: By
Last change:
Date: 16 years ago
Size: 1,232 bytes
 

Contents

Class file image Download
<?php

/**
 *
 * Sql_ParserDelete
 * @package Sql
 * @subpackage Sql_Parser
 * @author Thomas Schäfer
 * @since 30.11.2008 07:49:30
 * @desc parses a sql delete into object
 */

/**
 *
 * Sql_ParserDelete
 * @package Sql
 * @subpackage Sql_Parser
 * @author Thomas Schäfer
 * @since 30.11.2008 07:49:30
 * @desc parses a sql delete into object
 */

class Sql_ParserDelete implements Sql_InterfaceParser {

    public static function doParse(){

        Sql_Parser::getTok();
       
        if (Sql_Object::token() != 'from') {
            return Sql_Parser::raiseError('Expected "from"');
        }
       
        $tree = array('Command' => 'delete');
       
        Sql_Parser::getTok();
       
        if (Sql_Object::token() != 'ident') {
            return Sql_Parser::raiseError('Expected a table name');
        }
       
        $tree['TableNames'][] = Sql_Object::lexer()->tokText;
       
        Sql_Parser::getTok();
       
        if (Sql_Object::token() != 'where') {
            return Sql_Parser::raiseError('Expected "where"');
        }
       
        $clause = Sql_Parser::parseSearchClause();
       
        if (Sql_Parser::isError($clause)) {
            return $clause;
        }
        $tree['Where'] = $clause;
       
        return $tree;
    }
   
    public static function parse() {
        return self::doParse();
    }

}