91 lines
3.8 KiB
PHP
91 lines
3.8 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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* Join ::= ["LEFT" ["OUTER"] | "INNER"] "JOIN" JoinAssociationPathExpression
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* ["AS"] AliasIdentificationVariable [("ON" | "WITH") ConditionalExpression]
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*
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* @author Guilherme Blanco <guilhermeblanco@hotmail.com>
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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_Join extends Doctrine_ORM_Query_ParserRule
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{
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protected $_AST = null;
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public function syntax()
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{
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// Join ::= ["LEFT" ["OUTER"] | "INNER"] "JOIN" JoinAssociationPathExpression
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// ["AS"] AliasIdentificationVariable [("ON" | "WITH") ConditionalExpression]
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$this->_AST = $this->AST('Join');
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// Check Join type
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if ($this->_isNextToken(Doctrine_ORM_Query_Token::T_LEFT)) {
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$this->_parser->match(Doctrine_ORM_Query_Token::T_LEFT);
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// Possible LEFT OUTER join
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if ($this->_isNextToken(Doctrine_ORM_Query_Token::T_OUTER)) {
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$this->_parser->match(Doctrine_ORM_Query_Token::T_OUTER);
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$this->_AST->setJoinType(Doctrine_ORM_Query_AST_Join::JOIN_TYPE_LEFTOUTER);
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} else {
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$this->_AST->setJoinType(Doctrine_ORM_Query_AST_Join::JOIN_TYPE_LEFT);
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}
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} else if ($this->_isNextToken(Doctrine_ORM_Query_Token::T_INNER)) {
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// Default Join type. Not need to setJoinType.
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$this->_parser->match(Doctrine_ORM_Query_Token::T_INNER);
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}
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$this->_parser->match(Doctrine_ORM_Query_Token::T_JOIN);
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$this->_AST->setJoinAssociationPathExpression($this->parse('JoinAssociationPathExpression'));
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if ($this->_isNextToken(Doctrine_ORM_Query_Token::T_AS)) {
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$this->_parser->match(Doctrine_ORM_Query_Token::T_AS);
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}
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$this->_AST->setAliasIdentificationVariable($this->parse('AliasIdentificationVariable'));
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// Check Join where type
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if (
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$this->_isNextToken(Doctrine_ORM_Query_Token::T_ON) ||
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$this->_isNextToken(Doctrine_ORM_Query_Token::T_WITH)
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) {
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// Apply matches and adjusts
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if ($this->_isNextToken(Doctrine_ORM_Query_Token::T_ON)) {
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$this->_parser->match(Doctrine_ORM_Query_Token::T_ON);
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$this->_AST->setWhereType(Doctrine_ORM_Query_AST_Join::JOIN_WHERE_ON);
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} else {
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// Default Join where type. Not need to setWhereType.
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$this->_parser->match(Doctrine_ORM_Query_Token::T_WITH);
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}
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$this->_AST->setConditionalExpression($this->parse('ConditionalExpression'));
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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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} |