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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: 6 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();
    }

}