95 lines
3.0 KiB
PHP
95 lines
3.0 KiB
PHP
<?php
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/*
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* $Id$
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* 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
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* This software consists of voluntary contributions made by many individuals
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* and is licensed under the LGPL. For more information, see
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* <http://www.phpdoctrine.org>.
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*/
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/**
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* ComparisonExpression = ComparisonOperator ( QuantifiedExpression | Expression | "(" Subselect ")" )
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*
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* @package Doctrine
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* @subpackage Query
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* @author Guilherme Blanco <guilhermeblanco@hotmail.com>
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* @author Janne Vanhala <jpvanhal@cc.hut.fi>
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* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
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* @link http://www.phpdoctrine.org
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* @since 2.0
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* @version $Revision$
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*/
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class Doctrine_Query_Production_ComparisonExpression extends Doctrine_Query_Production
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{
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protected $_operator;
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protected $_expression;
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protected $_isSubselect;
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public function syntax($paramHolder)
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{
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// ComparisonExpression = ComparisonOperator ( QuantifiedExpression | Expression | "(" Subselect ")" )
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$this->_operator = $this->AST('ComparisonOperator', $paramHolder);
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if (($this->_isSubselect = $this->_isSubselect()) === true) {
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$this->_parser->match('(');
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$this->_expression = $this->AST('Subselect', $paramHolder);
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$this->_parser->match(')');
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$this->_isSubselect = true;
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} else {
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switch ($this->_parser->lookahead['type']) {
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case Doctrine_Query_Token::T_ALL:
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case Doctrine_Query_Token::T_ANY:
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case Doctrine_Query_Token::T_SOME:
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$this->_expression = $this->AST('QuantifiedExpression', $paramHolder);
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break;
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default:
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$this->_expression = $this->AST('Expression', $paramHolder);
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break;
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}
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}
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}
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public function buildSql()
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{
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return $this->_operator . ' ' . (($this->_isSubselect) ?
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'(' . $this->_expression->buildSql() . ')' : $this->_expression->buildSql()
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);
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}
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/* Getters */
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public function getOperator()
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{
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return $this->_operator;
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}
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public function getExpression()
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{
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return $this->_expression;
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}
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public function isSubselect()
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{
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return $this->_isSubselect;
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}
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}
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