152 lines
5.2 KiB
PHP
152 lines
5.2 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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* VariableDeclaration = identifier [["AS"] IdentificationVariable]
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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_VariableDeclaration extends Doctrine_Query_Production
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{
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protected $_componentName;
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protected $_componentAlias;
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public function syntax($paramHolder)
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{
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// VariableDeclaration = identifier [["AS"] IdentificationVariable]
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if ($this->_parser->match(Doctrine_Query_Token::T_IDENTIFIER)) {
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// identifier
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$this->_componentName = $this->_parser->token['value'];
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}
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if ($this->_isNextToken(Doctrine_Query_Token::T_AS)) {
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$this->_parser->match(Doctrine_Query_Token::T_AS);
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}
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if ($this->_isNextToken(Doctrine_Query_Token::T_IDENTIFIER)) {
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$paramHolder->set('componentName', $this->_componentName);
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// Will return an identifier, with the semantical check already applied
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$this->_componentAlias = $this->AST('IdentificationVariable', $paramHolder);
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$paramHolder->remove('componentName');
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}
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}
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public function semantical($paramHolder)
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{
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$parserResult = $this->_parser->getParserResult();
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if ($parserResult->hasQueryComponent($this->_componentName)) {
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// As long as name != alias, try to bring the queryComponent from name (already processed)
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$queryComponent = $parserResult->getQueryComponent($this->_componentName);
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// Check if we defined _componentAlias. We throw semantical error if not
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if ($this->_componentAlias === null) {
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$componentName = $queryComponent['metadata']->getClassName();
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$this->_parser->semanticalError(
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"Cannot re-declare component '{$this->_componentName}'. Please assign an alias to it."
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);
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return;
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}
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} else {
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// No queryComponent was found. We will have to build it for the first time
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// Get the connection for the component
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$conn = $this->_em->getConnection();
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// Retrieving ClassMetadata and Mapper
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try {
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$classMetadata = $this->_em->getMetadata($this->_componentName);
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// Building queryComponent
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$queryComponent = array(
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'metadata' => $classMetadata,
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'parent' => null,
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'relation' => null,
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'map' => null,
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'scalar' => null,
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);
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} catch (Doctrine_Exception $e) {
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$this->_parser->semanticalError($e->getMessage());
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return;
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}
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}
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// Define ParserResult assertions for later usage
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$tableAlias = $this->_parser->getParserResult()->generateTableAlias($this->_componentName);
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if ($this->_componentAlias === null) {
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$this->_componentAlias = $this->_componentName;
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}
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$parserResult->setQueryComponent($this->_componentAlias, $queryComponent);
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$parserResult->setTableAlias($tableAlias, $this->_componentAlias);
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}
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public function buildSql()
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{
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// Basic handy variables
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$parserResult = $this->_parser->getParserResult();
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$queryComponent = $parserResult->getQueryComponent($this->_componentAlias);
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// Retrieving connection
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$conn = $this->_em->getConnection();
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return $conn->quoteIdentifier($queryComponent['metadata']->getTableName()) . ' '
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. $conn->quoteIdentifier($parserResult->getTableAliasFromComponentAlias($this->_componentAlias));
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}
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/**
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* Visitor support.
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*/
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public function accept($visitor)
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{
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$visitor->visitVariableDeclaration($this);
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}
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/* Getters */
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public function getComponentName()
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{
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return $this->_componentName;
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}
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public function getComponentAlias()
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{
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return $this->_componentAlias;
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}
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}
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