110 lines
4.0 KiB
PHP
110 lines
4.0 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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* SimpleConditionalExpression =
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* ExistsExpression | Expression (ComparisonExpression | BetweenExpression |
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* LikeExpression | InExpression | NullComparisonExpression | QuantifiedExpression)
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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 1.0
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* @version $Revision$
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*/
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class Doctrine_Query_Production_SimpleConditionalExpression extends Doctrine_Query_Production
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{
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protected $_leftExpression;
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protected $_rightExpression;
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public function syntax($paramHolder)
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{
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// SimpleConditionalExpression =
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// ExistsExpression | Expression (ComparisonExpression | BetweenExpression |
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// LikeExpression | InExpression | NullComparisonExpression | QuantifiedExpression)
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if ($this->_getExpressionType() === Doctrine_Query_Token::T_EXISTS) {
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return $this->AST('ExistsExpression', $paramHolder);
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}
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$this->_leftExpression = $this->AST('Expression', $paramHolder);
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switch ($this->_getExpressionType()) {
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case Doctrine_Query_Token::T_BETWEEN:
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$this->_rightExpression = $this->AST('BetweenExpression', $paramHolder);
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break;
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case Doctrine_Query_Token::T_LIKE:
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$this->_rightExpression = $this->AST('LikeExpression', $paramHolder);
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break;
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case Doctrine_Query_Token::T_IN:
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$this->_rightExpression = $this->AST('InExpression', $paramHolder);
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break;
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case Doctrine_Query_Token::T_IS:
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$this->_rightExpression = $this->AST('NullComparisonExpression', $paramHolder);
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break;
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case Doctrine_Query_Token::T_ALL:
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case Doctrine_Query_Token::T_ANY:
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case Doctrine_Query_Token::T_SOME:
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$this->_rightExpression = $this->AST('QuantifiedExpression', $paramHolder);
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break;
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case Doctrine_Query_Token::T_NONE:
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// [TODO] Check out ticket #935 to understand what will be done with enumParams
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$this->_rightExpression = $this->AST('ComparisonExpression', $paramHolder);
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break;
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default:
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$message = "BETWEEN, LIKE, IN, IS, quantified (ALL, ANY or SOME) "
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. "or comparison (=, <, <=, <>, >, >=, !=)";
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$this->_parser->syntaxError($message);
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break;
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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->_leftExpression->buildSql() . ' ' . $this->_rightExpression->buildSql();
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}
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protected function _getExpressionType() {
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if ($this->_isNextToken(Doctrine_Query_Token::T_NOT)) {
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$scanner = $this->_parser->getScanner();
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$token = $scanner->peek();
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$scanner->resetPeek();
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} else {
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$token = $this->_parser->lookahead;
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}
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return $token['type'];
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}
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}
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