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doctrine2/lib/Doctrine/ORM/Query/Production/ConditionalPrimary.php

109 lines
3.6 KiB
PHP

<?php
/*
* $Id$
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "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 COPYRIGHT
* OWNER OR CONTRIBUTORS 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.
*
* This software consists of voluntary contributions made by many individuals
* and is licensed under the LGPL. For more information, see
* <http://www.phpdoctrine.org>.
*/
/**
* ConditionalPrimary = SimpleConditionalExpression | "(" ConditionalExpression ")"
*
* @package Doctrine
* @subpackage Query
* @author Guilherme Blanco <guilhermeblanco@hotmail.com>
* @author Janne Vanhala <jpvanhal@cc.hut.fi>
* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
* @link http://www.phpdoctrine.org
* @since 2.0
* @version $Revision$
*/
class Doctrine_Query_Production_ConditionalPrimary extends Doctrine_Query_Production
{
protected $_conditionalExpression;
public function syntax($paramHolder)
{
// ConditionalPrimary = SimpleConditionalExpression | "(" ConditionalExpression ")"
if ( ! $this->_isConditionalExpression()) {
return $this->AST('SimpleConditionalExpression', $paramHolder);
}
$this->_parser->match('(');
$this->_conditionalExpression = $this->AST('ConditionalExpression', $paramHolder);
$this->_parser->match(')');
}
public function buildSql()
{
return '(' . $this->_conditionalExpression->buildSql() . ')';
}
protected function _isConditionalExpression()
{
$token = $this->_parser->lookahead;
$parenthesis = 0;
if ($token['value'] === '(') {
$parenthesis++;
}
while ($parenthesis > 0) {
$token = $this->_parser->getScanner()->peek();
if ($token['value'] === '(') {
$parenthesis++;
} elseif ($token['value'] === ')') {
$parenthesis--;
} else {
switch ($token['type']) {
case Doctrine_Query_Token::T_NOT:
case Doctrine_Query_Token::T_AND:
case Doctrine_Query_Token::T_OR:
case Doctrine_Query_Token::T_BETWEEN:
case Doctrine_Query_Token::T_LIKE:
case Doctrine_Query_Token::T_IN:
case Doctrine_Query_Token::T_IS:
case Doctrine_Query_Token::T_EXISTS:
return true;
case Doctrine_Query_Token::T_NONE:
switch ($token['value']) {
case '=':
case '<':
case '>':
case '!':
return true;
}
break;
}
}
}
return false;
}
/* Getters */
public function getConditionalExpression()
{
return $this->_conditionalExpression;
}
}