81 lines
3.3 KiB
PHP
81 lines
3.3 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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* IdentificationVariableDeclaration ::= RangeVariableDeclaration [IndexBy] {JoinVariableDeclaration}*
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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 1.0
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* @version $Revision$
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*/
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class Doctrine_ORM_Query_Parser_IdentificationVariableDeclaration extends Doctrine_ORM_Query_ParserRule
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{
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protected $_AST = null;
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public function syntax()
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{
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// IdentificationVariableDeclaration ::= RangeVariableDeclaration [IndexBy] {JoinVariableDeclaration}*
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$this->_AST = $this->AST('IdentificationVariableDeclaration');
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$this->_AST->setRangeVariableDeclaration($this->parse('RangeVariableDeclaration'));
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if ($this->_isNextToken(Doctrine_ORM_Query_Token::T_INDEX)) {
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$this->_AST->setIndexBy($this->parse('IndexBy'));
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}
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while (
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$this->_isNextToken(Doctrine_ORM_Query_Token::T_LEFT) ||
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$this->_isNextToken(Doctrine_ORM_Query_Token::T_INNER) ||
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$this->_isNextToken(Doctrine_ORM_Query_Token::T_JOIN)
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) {
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$this->_AST->addJoinVariableDeclaration($this->parse('JoinVariableDeclaration'));
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}
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}
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public function semantical()
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{
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// If we have an INDEX BY RangeVariableDeclaration
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if ($this->_AST->getIndexby() !== null) {
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// Grab Range component alias
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$rangeComponentAlias = $this->_AST->getRangeVariableDeclaration()->getAliasIdentificationVariable();
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// Grab IndexBy component alias
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$indexComponentAlias = $this->_AST->getIndexBy()->getSimpleStateFieldPathExpression()
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->getIdentificationVariable();
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// Check if we have same component being used in index
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if ($rangeComponentAlias !== $indexComponentAlias) {
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$message = "Invalid aliasing. Cannot index by '" . $indexComponentAlias
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. "' inside '" . $rangeComponentAlias . "' scope.";
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$this->_parser->semanticalError($message);
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}
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}
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// Return AST node
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return $this->_AST;
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}
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} |