330 lines
13 KiB
PHP
330 lines
13 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.doctrine-project.org>.
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*/
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namespace Doctrine\ORM\Persisters;
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use Doctrine\Common\DoctrineException;
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/**
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* The joined subclass persister maps a single entity instance to several tables in the
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* database as it is defined by <tt>Class Table Inheritance</tt>.
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*
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* @author Roman Borschel <roman@code-factory.org>
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* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
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* @version $Revision$
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* @link www.doctrine-project.org
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* @since 2.0
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* @todo Reimplement.
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*/
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class JoinedSubclassPersister extends StandardEntityPersister
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{
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/** Map that maps column names to the table names that own them.
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* This is mainly a temporary cache, used during a single request.
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*/
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private $_owningTableMap = array();
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/**
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* {@inheritdoc}
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*
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* @override
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*/
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protected function _prepareData($entity, array &$result, $isInsert = false)
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{
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parent::_prepareData($entity, $result, $isInsert);
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// Populate the discriminator column
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if ($isInsert) {
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$discColumn = $this->_class->discriminatorColumn;
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$rootClass = $this->_em->getClassMetadata($this->_class->rootEntityName);
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$result[$rootClass->primaryTable['name']][$discColumn['name']] =
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$this->_class->discriminatorValue;
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}
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}
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/**
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* This function finds the ClassMetadata instance in a inheritance hierarchy
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* that is responsible for enabling versioning.
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*
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* @return mixed $versionedClass ClassMetadata instance or false if versioning is not enabled
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*/
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private function _getVersionedClassMetadata()
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{
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if ($isVersioned = $this->_class->isVersioned) {
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if (isset($this->_class->fieldMappings[$this->_class->versionField]['inherited'])) {
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$definingClassName = $this->_class->fieldMappings[$this->_class->versionField]['inherited'];
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$versionedClass = $this->_em->getClassMetadata($definingClassName);
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} else {
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$versionedClass = $this->_class;
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}
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return $versionedClass;
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}
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return false;
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}
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/**
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* {@inheritdoc}
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*
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* @override
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*/
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public function getOwningTable($fieldName)
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{
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if ( ! isset($this->_owningTableMap[$fieldName])) {
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if (isset($this->_class->associationMappings[$fieldName])) {
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if (isset($this->_class->inheritedAssociationFields[$fieldName])) {
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$this->_owningTableMap[$fieldName] = $this->_em->getClassMetadata(
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$this->_class->inheritedAssociationFields[$fieldName])->primaryTable['name'];
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} else {
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$this->_owningTableMap[$fieldName] = $this->_class->primaryTable['name'];
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}
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} else if (isset($this->_class->fieldMappings[$fieldName]['inherited'])) {
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$this->_owningTableMap[$fieldName] = $this->_em->getClassMetadata(
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$this->_class->fieldMappings[$fieldName]['inherited'])->primaryTable['name'];
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} else {
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$this->_owningTableMap[$fieldName] = $this->_class->primaryTable['name'];
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}
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}
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return $this->_owningTableMap[$fieldName];
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}
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/**
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* {@inheritdoc}
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*
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* @override
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*/
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public function executeInserts()
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{
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if ( ! $this->_queuedInserts) {
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return;
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}
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if ($isVersioned = $this->_class->isVersioned) {
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$versionedClass = $this->_getVersionedClassMetadata();
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}
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$postInsertIds = array();
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$idGen = $this->_class->idGenerator;
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$isPostInsertId = $idGen->isPostInsertGenerator();
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$sqlLogger = $this->_conn->getConfiguration()->getSqlLogger();
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// Prepare statements for all tables
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$stmts = $classes = array();
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$stmts[$this->_class->primaryTable['name']] = $this->_conn->prepare($this->_class->insertSql);
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$sql[$this->_class->primaryTable['name']] = $this->_class->insertSql;
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foreach ($this->_class->parentClasses as $parentClass) {
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$parentClass = $this->_em->getClassMetadata($parentClass);
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$sql[$parentClass->primaryTable['name']] = $parentClass->insertSql;
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$stmts[$parentClass->primaryTable['name']] = $this->_conn->prepare($parentClass->insertSql);
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}
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$rootTableName = $this->_em->getClassMetadata($this->_class->rootEntityName)->primaryTable['name'];
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foreach ($this->_queuedInserts as $entity) {
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$insertData = array();
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$this->_prepareData($entity, $insertData, true);
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// Execute insert on root table
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$stmt = $stmts[$rootTableName];
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$paramIndex = 1;
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if ($sqlLogger) {
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$params = array();
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foreach ($insertData[$rootTableName] as $columnName => $value) {
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$params[$paramIndex] = $value;
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$stmt->bindValue($paramIndex++, $value/*, TODO: TYPE*/);
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}
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$sqlLogger->logSql($sql[$rootTableName], $params);
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} else {
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foreach ($insertData[$rootTableName] as $columnName => $value) {
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$stmt->bindValue($paramIndex++, $value/*, TODO: TYPE*/);
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}
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}
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$stmt->execute();
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unset($insertData[$rootTableName]);
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if ($isPostInsertId) {
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$id = $idGen->generate($this->_em, $entity);
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$postInsertIds[$id] = $entity;
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} else {
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$id = $this->_em->getUnitOfWork()->getEntityIdentifier($entity);
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}
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// Execute inserts on subtables
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foreach ($insertData as $tableName => $data) {
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$stmt = $stmts[$tableName];
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$paramIndex = 1;
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if ($sqlLogger) {
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//TODO: Log type
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$params = array();
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foreach ((array)$id as $idVal) {
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$params[$paramIndex] = $idVal;
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$stmt->bindValue($paramIndex++, $idVal/*, TODO: TYPE*/);
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}
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foreach ($data as $columnName => $value) {
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$params[$paramIndex] = $value;
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$stmt->bindValue($paramIndex++, $value/*, TODO: TYPE*/);
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}
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$sqlLogger->logSql($sql[$tableName], $params);
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} else {
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foreach ((array)$id as $idVal) {
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$stmt->bindValue($paramIndex++, $idVal/*, TODO: TYPE*/);
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}
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foreach ($data as $columnName => $value) {
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$stmt->bindValue($paramIndex++, $value/*, TODO: TYPE*/);
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}
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}
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$stmt->execute();
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}
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}
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foreach ($stmts as $stmt)
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$stmt->closeCursor();
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if ($isVersioned) {
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$this->_assignDefaultVersionValue($versionedClass, $entity, $id);
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}
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$this->_queuedInserts = array();
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return $postInsertIds;
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}
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/**
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* Updates an entity.
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*
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* @param object $entity The entity to update.
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* @override
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*/
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public function update($entity)
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{
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$updateData = array();
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$this->_prepareData($entity, $updateData);
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$id = array_combine(
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$this->_class->getIdentifierFieldNames(),
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$this->_em->getUnitOfWork()->getEntityIdentifier($entity)
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);
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if ($isVersioned = $this->_class->isVersioned) {
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$versionedClass = $this->_getVersionedClassMetadata();
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$versionedTable = $versionedClass->primaryTable['name'];
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}
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if ($updateData) {
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foreach ($updateData as $tableName => $data) {
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if ($isVersioned && $versionedTable == $tableName) {
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$this->_doUpdate($entity, $tableName, $data, $id);
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} else {
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$this->_conn->update($tableName, $data, $id);
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}
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}
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if ($isVersioned && ! isset($updateData[$versionedTable])) {
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$this->_doUpdate($entity, $versionedTable, array(), $id);
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}
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}
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}
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/**
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* Deletes an entity.
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*
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* @param object $entity The entity to delete.
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* @override
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*/
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public function delete($entity)
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{
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$id = array_combine(
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$this->_class->getIdentifierFieldNames(),
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$this->_em->getUnitOfWork()->getEntityIdentifier($entity)
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);
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// If the database platform supports FKs, just
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// delete the row from the root table. Cascades do the rest.
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if ($this->_conn->getDatabasePlatform()->supportsForeignKeyConstraints()) {
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$this->_conn->delete($this->_em->getClassMetadata($this->_class->rootEntityName)
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->primaryTable['name'], $id);
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} else {
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// Delete the parent tables, starting from this class' table up to the root table
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$this->_conn->delete($this->_class->primaryTable['name'], $id);
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foreach ($this->_class->parentClasses as $parentClass) {
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$this->_conn->delete($this->_em->getClassMetadata($parentClass)->primaryTable['name'], $id);
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}
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}
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}
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/**
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* Gets the SELECT SQL to select a single entity by a set of field criteria.
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*
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* @param array $criteria
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* @return string The SQL.
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* @todo Quote identifier.
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* @override
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*/
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protected function _getSelectSingleEntitySql(array &$criteria)
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{
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$tableAliases = array();
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$aliasIndex = 1;
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$idColumns = $this->_class->getIdentifierColumnNames();
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$baseTableAlias = 't0';
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foreach (array_merge($this->_class->subClasses, $this->_class->parentClasses) as $className) {
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$tableAliases[$className] = 't' . $aliasIndex++;
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}
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$columnList = '';
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foreach ($this->_class->fieldMappings as $fieldName => $mapping) {
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$tableAlias = isset($mapping['inherited']) ?
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$tableAliases[$mapping['inherited']] : $baseTableAlias;
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if ($columnList != '') $columnList .= ', ';
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$columnList .= $tableAlias . '.' . $this->_class->columnNames[$fieldName];
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}
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$sql = 'SELECT ' . $columnList . ' FROM ' . $this->_class->primaryTable['name']. ' ' . $baseTableAlias;
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// INNER JOIN parent tables
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foreach ($this->_class->parentClasses as $parentClassName) {
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$parentClass = $this->_em->getClassMetadata($parentClassName);
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$tableAlias = $tableAliases[$parentClassName];
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$sql .= ' INNER JOIN ' . $parentClass->primaryTable['name'] . ' ' . $tableAlias . ' ON ';
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$first = true;
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foreach ($idColumns as $idColumn) {
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if ($first) $first = false; else $sql .= ' AND ';
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$sql .= $baseTableAlias . '.' . $idColumn . ' = ' . $tableAlias . '.' . $idColumn;
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}
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}
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// OUTER JOIN sub tables
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foreach ($this->_class->subClasses as $subClassName) {
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$subClass = $this->_em->getClassMetadata($subClassName);
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$tableAlias = $tableAliases[$subClassName];
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$sql .= ' LEFT JOIN ' . $subClass->primaryTable['name'] . ' ' . $tableAlias . ' ON ';
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$first = true;
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foreach ($idColumns as $idColumn) {
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if ($first) $first = false; else $sql .= ' AND ';
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$sql .= $baseTableAlias . '.' . $idColumn . ' = ' . $tableAlias . '.' . $idColumn;
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}
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}
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$conditionSql = '';
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foreach ($criteria as $field => $value) {
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if ($conditionSql != '') $conditionSql .= ' AND ';
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$conditionSql .= $baseTableAlias . '.' . $this->_class->columnNames[$field] . ' = ?';
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}
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return $sql . ' WHERE ' . $conditionSql;
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}
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}
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