85 lines
3.2 KiB
PHP
85 lines
3.2 KiB
PHP
<?php
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/**
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* DeleteProcessor.php
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*
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* Processes the DELETE statement parts and splits multi-table deletes.
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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 Justin Swanhart and 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 Justin Swanhart and André Rothe
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* @license http://www.debian.org/misc/bsd.license BSD License (3 Clause)
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* @version SVN: $Id$
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*
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*/
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namespace PHPSQLParser\processors;
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/**
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* This class processes the DELETE statements.
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* You can overwrite all functions to achieve another handling.
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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 DeleteProcessor extends AbstractProcessor {
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public function process($tokens) {
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$tables = array();
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$del = $tokens['DELETE'];
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foreach ($tokens['DELETE'] as $expression) {
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if (strtoupper($expression) !== 'DELETE' && trim($expression, " \t\n\r\0\x0B.*") !== ""
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&& !$this->isCommaToken($expression)) {
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$tables[] = trim($expression, " \t\n\r\0\x0B.*");
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}
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}
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if (empty($tables) && isset($tokens['USING'])) {
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foreach ($tokens['FROM'] as $table) {
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$tables[] = trim($table['table'], " \t\n\r\0\x0B.*");
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}
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$tokens['FROM'] = $tokens['USING'];
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unset($tokens['USING']);
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}
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$options = array();
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if (isset($tokens['OPTIONS'])) {
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$options = $tokens['OPTIONS'];
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unset($tokens['OPTIONS']);
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}
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$tokens['DELETE'] = array('options' => (empty($options) ? false : $options),
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'tables' => (empty($tables) ? false : $tables));
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return $tokens;
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}
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}
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?>
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