114 lines
4.1 KiB
PHP
114 lines
4.1 KiB
PHP
<?php
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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 MIT license. For more information, see
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* <http://www.doctrine-project.org>.
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*/
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namespace Doctrine\ORM\Query\AST\Functions;
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use Doctrine\ORM\Query\Lexer;
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use Doctrine\ORM\Query\Parser;
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use Doctrine\ORM\Query\SqlWalker;
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use Doctrine\ORM\Query\QueryException;
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/**
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* "IDENTITY" "(" SingleValuedAssociationPathExpression {"," string} ")"
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*
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*
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* @link www.doctrine-project.org
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* @since 2.2
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* @author Guilherme Blanco <guilhermeblanco@hotmail.com>
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* @author Benjamin Eberlei <kontakt@beberlei.de>
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*/
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class IdentityFunction extends FunctionNode
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{
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/**
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* @var \Doctrine\ORM\Query\AST\PathExpression
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*/
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public $pathExpression;
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/**
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* @var string
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*/
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public $fieldMapping;
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/**
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* {@inheritdoc}
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*/
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public function getSql(SqlWalker $sqlWalker)
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{
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$platform = $sqlWalker->getEntityManager()->getConnection()->getDatabasePlatform();
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$quoteStrategy = $sqlWalker->getEntityManager()->getConfiguration()->getQuoteStrategy();
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$dqlAlias = $this->pathExpression->identificationVariable;
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$assocField = $this->pathExpression->field;
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$qComp = $sqlWalker->getQueryComponent($dqlAlias);
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$class = $qComp['metadata'];
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$assoc = $class->associationMappings[$assocField];
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$targetEntity = $sqlWalker->getEntityManager()->getClassMetadata($assoc['targetEntity']);
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$joinColumn = reset($assoc['joinColumns']);
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if ($this->fieldMapping !== null) {
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if ( ! isset($targetEntity->fieldMappings[$this->fieldMapping])) {
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throw new QueryException(sprintf('Undefined reference field mapping "%s"', $this->fieldMapping));
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}
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$field = $targetEntity->fieldMappings[$this->fieldMapping];
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$joinColumn = null;
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foreach ($assoc['joinColumns'] as $mapping) {
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if($mapping['referencedColumnName'] === $field['columnName']) {
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$joinColumn = $mapping;
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break;
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}
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}
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if ($joinColumn === null) {
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throw new QueryException(sprintf('Unable to resolve the reference field mapping "%s"', $this->fieldMapping));
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}
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}
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//The table with the relation may be a subclass, so get the table name from the association definition
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$tableName = $sqlWalker->getEntityManager()->getClassMetadata($assoc['sourceEntity'])->getTableName();
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$tableAlias = $sqlWalker->getSQLTableAlias($tableName, $dqlAlias);
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$columnName = $quoteStrategy->getJoinColumnName($joinColumn, $targetEntity, $platform);
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return $tableAlias . '.' . $columnName;
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}
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/**
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* {@inheritdoc}
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*/
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public function parse(Parser $parser)
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{
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$parser->match(Lexer::T_IDENTIFIER);
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$parser->match(Lexer::T_OPEN_PARENTHESIS);
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$this->pathExpression = $parser->SingleValuedAssociationPathExpression();
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if ($parser->getLexer()->isNextToken(Lexer::T_COMMA)) {
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$parser->match(Lexer::T_COMMA);
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$parser->match(Lexer::T_STRING);
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$this->fieldMapping = $parser->getLexer()->token['value'];
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}
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$parser->match(Lexer::T_CLOSE_PARENTHESIS);
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}
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}
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