81 lines
3.2 KiB
PHP
81 lines
3.2 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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* SelectStatement ::= SelectClause FromClause [WhereClause] [GroupByClause] [HavingClause] [OrderByClause]
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*
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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_ORM_Query_Parser_SelectStatement extends Doctrine_ORM_Query_ParserRule
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{
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protected $_AST = null;
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protected $_selectClause = null;
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public function syntax()
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{
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// SelectStatement ::= SelectClause FromClause [WhereClause] [GroupByClause] [HavingClause] [OrderByClause]
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$this->_AST = $this->AST('SelectStatement');
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// Disable the semantical check for SelectClause now. This is needed
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// since we dont know the query components yet (will be known only
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// when the FROM and WHERE clause are processed).
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$this->_dataHolder->set('semanticalCheck', false);
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$this->_selectClause = $this->parse('SelectClause');
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$this->_dataHolder->remove('semanticalCheck');
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$this->_AST->setFromClause($this->parse('FromClause'));
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if ($this->_isNextToken(Doctrine_ORM_Query_Token::T_WHERE)) {
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$this->_AST->setWhereClause($this->parse('WhereClause'));
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}
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if ($this->_isNextToken(Doctrine_ORM_Query_Token::T_GROUP)) {
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$this->_AST->setGroupByClause($this->parse('GroupByClause'));
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}
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if ($this->_isNextToken(Doctrine_ORM_Query_Token::T_HAVING)) {
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$this->_AST->setHavingClause($this->parse('HavingClause'));
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}
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if ($this->_isNextToken(Doctrine_ORM_Query_Token::T_ORDER)) {
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$this->_AST->setOrderByClause($this->parse('OrderByClause'));
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}
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}
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public function semantical()
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{
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// We need to invoke the semantical check of SelectClause here, since
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// it was not yet checked.
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// The semantical checks will be forwarded to all SelectClause dependant grammar rules
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$this->_AST->setSelectClause($this->_selectClause->semantical());
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// Return AST node
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return $this->_AST;
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}
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} |