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<?php
/**
* DeleteProcessor.php
*
* Processes the DELETE statement parts and splits multi-table deletes.
*
* PHP version 5
*
* LICENSE:
* Copyright (c) 2010-2014 Justin Swanhart and André Rothe
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* @author André Rothe <andre.rothe@phosco.info>
* @copyright 2010-2014 Justin Swanhart and André Rothe
* @license http://www.debian.org/misc/bsd.license BSD License (3 Clause)
* @version SVN: $Id$
*
*/
namespace PHPSQLParser\processors;
/**
* This class processes the DELETE statements.
* You can overwrite all functions to achieve another handling.
*
* @author André Rothe <andre.rothe@phosco.info>
* @license http://www.debian.org/misc/bsd.license BSD License (3 Clause)
*
*/
class DeleteProcessor extends AbstractProcessor {
public function process($tokens) {
$tables = array();
$del = $tokens['DELETE'];
foreach ($tokens['DELETE'] as $expression) {
if (strtoupper($expression) !== 'DELETE' && trim($expression, " \t\n\r\0\x0B.*") !== ""
&& !$this->isCommaToken($expression)) {
$tables[] = trim($expression, " \t\n\r\0\x0B.*");
}
}
if (empty($tables) && isset($tokens['USING'])) {
foreach ($tokens['FROM'] as $table) {
$tables[] = trim($table['table'], " \t\n\r\0\x0B.*");
}
$tokens['FROM'] = $tokens['USING'];
unset($tokens['USING']);
}
$options = array();
if (isset($tokens['OPTIONS'])) {
$options = $tokens['OPTIONS'];
unset($tokens['OPTIONS']);
}
$tokens['DELETE'] = array('options' => (empty($options) ? false : $options),
'tables' => (empty($tables) ? false : $tables));
return $tokens;
}
}
?>