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doctrine2/lib/Doctrine/ORM/Query/Parser/JoinAssociationPathExpression.php
2009-01-15 16:10:22 +00:00

71 lines
2.9 KiB
PHP

<?php
/*
* $Id$
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This software consists of voluntary contributions made by many individuals
* and is licensed under the LGPL. For more information, see
* <http://www.phpdoctrine.org>.
*/
/**
* JoinAssociationPathExpression ::= JoinCollectionValuedPathExpression | JoinSingleValuedAssociationPathExpression
*
* @author Guilherme Blanco <guilhermeblanco@hotmail.com>
* @author Janne Vanhala <jpvanhal@cc.hut.fi>
* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
* @link http://www.phpdoctrine.org
* @since 2.0
* @version $Revision$
*/
class Doctrine_ORM_Query_Parser_JoinAssociationPathExpression extends Doctrine_ORM_Query_ParserRule
{
public function syntax()
{
// JoinAssociationPathExpression ::= JoinCollectionValuedPathExpression | JoinSingleValuedAssociationPathExpression
return $this->parse($this->_isSingleValuedPathExpression()
? 'JoinSingleValuedAssociationPathExpression'
: 'JoinCollectionValuedPathExpression'
);
}
private function _isSingleValuedPathExpression()
{
$parserResult = $this->_parser->getParserResult();
// Trying to recoginize this grammar:
// IdentificationVariable "." (CollectionValuedAssociationField | SingleValuedAssociationField)
$token = $this->_parser->lookahead;
$this->_parser->getScanner()->resetPeek();
if ($parserResult->hasQueryComponent($token['value'])) {
$queryComponent = $parserResult->getQueryComponent($token['value']);
$token = $this->_parser->getScanner()->peek();
// If we have a dot ".", then next char must be the "*"
if ($token['type'] === Doctrine_ORM_Query_Token::T_DOT) {
$token = $this->_parser->getScanner()->peek();
if ( ! ($queryComponent['metadata']->hasAssociation($token['value']) &&
$queryComponent['metadata']->getAssociation($token['value'])->isOneToTone())) {
return true;
}
}
}
return false;
}
}