134 lines
4.9 KiB
PHP
134 lines
4.9 KiB
PHP
<?php
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/**
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* PHPSQLCreator.php
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*
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* A creator, which generates SQL from the output of PHPSQLParser.
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*
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* PHP version 5
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*
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* LICENSE:
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* Copyright (c) 2010-2014 André Rothe
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* @author André Rothe <andre.rothe@phosco.info>
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* @copyright 2010-2014 André Rothe
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* @license http://www.debian.org/misc/bsd.license BSD License (3 Clause)
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* @version SVN: $Id: PHPSQLCreator.php 790 2013-12-17 12:16:48Z phosco@gmx.de $
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*
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*/
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require_once dirname(__FILE__) . '/exceptions/UnsupportedFeatureException.php';
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require_once dirname(__FILE__) . '/builders/SelectStatementBuilder.php';
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require_once dirname(__FILE__) . '/builders/DeleteStatementBuilder.php';
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require_once dirname(__FILE__) . '/builders/UpdateStatementBuilder.php';
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require_once dirname(__FILE__) . '/builders/InsertStatementBuilder.php';
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require_once dirname(__FILE__) . '/builders/CreateStatementBuilder.php';
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require_once dirname(__FILE__) . '/builders/ShowStatementBuilder.php';
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/**
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* This class generates SQL from the output of the PHPSQLParser.
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*
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* @author André Rothe <andre.rothe@phosco.info>
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* @license http://www.debian.org/misc/bsd.license BSD License (3 Clause)
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*
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*/
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class PHPSQLCreator {
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public function __construct($parsed = false) {
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if ($parsed) {
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$this->create($parsed);
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}
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}
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public function create($parsed) {
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$k = key($parsed);
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switch ($k) {
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case "UNION":
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case "UNION ALL":
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throw new UnsupportedFeatureException($k);
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break;
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case "SELECT":
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$builder = new SelectStatementBuilder($parsed);
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$this->created = $builder->build($parsed);
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break;
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case "INSERT":
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$builder = new InsertStatementBuilder($parsed);
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$this->created = $builder->build($parsed);
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break;
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case "DELETE":
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$builder = new DeleteStatementBuilder($parsed);
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$this->created = $builder->build($parsed);
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break;
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case "UPDATE":
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$builder = new UpdateStatementBuilder($parsed);
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$this->created = $builder->build($parsed);
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break;
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case "RENAME":
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$this->created = $this->processRenameTableStatement($parsed);
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break;
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case "SHOW":
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$builder = new ShowStatementBuilder($parsed);
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$this->created = $builder->build($parsed);
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break;
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case "CREATE":
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$builder = new CreateStatementBuilder($parsed);
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$this->created = $builder->build($parsed);
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break;
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default:
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throw new UnsupportedFeatureException($k);
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break;
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}
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return $this->created;
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}
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// TODO: we should change that, there are multiple "rename objects" as
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// table, user, database
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protected function processRenameTableStatement($parsed) {
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$rename = $parsed['RENAME'];
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$sql = "";
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foreach ($rename as $k => $v) {
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$len = strlen($sql);
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$sql .= $this->processSourceAndDestTable($v);
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if ($len == strlen($sql)) {
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throw new UnableToCreateSQLException('RENAME', $k, $v, 'expr_type');
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}
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$sql .= ",";
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}
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$sql = substr($sql, 0, -1);
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return "RENAME TABLE " . $sql;
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}
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protected function processSourceAndDestTable($v) {
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if (!isset($v['source']) || !isset($v['destination'])) {
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return "";
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}
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return $v['source']['base_expr'] . " TO " . $v['destination']['base_expr'];
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}
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}
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?>
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