462 lines
17 KiB
PHP
462 lines
17 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\Persisters;
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use Doctrine\ORM\Mapping\ClassMetadata;
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use Doctrine\ORM\PersistentCollection;
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use Doctrine\ORM\UnitOfWork;
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/**
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* Persister for many-to-many collections.
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*
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* @author Roman Borschel <roman@code-factory.org>
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* @author Guilherme Blanco <guilhermeblanco@hotmail.com>
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* @author Alexander <iam.asm89@gmail.com>
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* @since 2.0
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*/
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class ManyToManyPersister extends AbstractCollectionPersister
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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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protected function getDeleteRowSQL(PersistentCollection $coll)
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{
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$columns = array();
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$mapping = $coll->getMapping();
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$class = $this->em->getClassMetadata(get_class($coll->getOwner()));
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$tableName = $this->quoteStrategy->getJoinTableName($mapping, $class, $this->platform);
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foreach ($mapping['joinTable']['joinColumns'] as $joinColumn) {
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$columns[] = $this->quoteStrategy->getJoinColumnName($joinColumn, $class, $this->platform);
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}
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foreach ($mapping['joinTable']['inverseJoinColumns'] as $joinColumn) {
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$columns[] = $this->quoteStrategy->getJoinColumnName($joinColumn, $class, $this->platform);
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}
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return 'DELETE FROM ' . $tableName
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. ' WHERE ' . implode(' = ? AND ', $columns) . ' = ?';
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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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* @internal Order of the parameters must be the same as the order of the columns in getDeleteRowSql.
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*/
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protected function getDeleteRowSQLParameters(PersistentCollection $coll, $element)
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{
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return $this->collectJoinTableColumnParameters($coll, $element);
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}
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/**
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* {@inheritdoc}
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*
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* @throws \BadMethodCallException Not used for OneToManyPersister
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*/
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protected function getUpdateRowSQL(PersistentCollection $coll)
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{
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throw new \BadMethodCallException("Insert Row SQL is not used for ManyToManyPersister");
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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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* @internal Order of the parameters must be the same as the order of the columns in getInsertRowSql.
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*/
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protected function getInsertRowSQL(PersistentCollection $coll)
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{
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$columns = array();
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$mapping = $coll->getMapping();
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$class = $this->em->getClassMetadata(get_class($coll->getOwner()));
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$joinTable = $this->quoteStrategy->getJoinTableName($mapping, $class, $this->platform);
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foreach ($mapping['joinTable']['joinColumns'] as $joinColumn) {
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$columns[] = $this->quoteStrategy->getJoinColumnName($joinColumn, $class, $this->platform);
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}
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foreach ($mapping['joinTable']['inverseJoinColumns'] as $joinColumn) {
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$columns[] = $this->quoteStrategy->getJoinColumnName($joinColumn, $class, $this->platform);
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}
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return 'INSERT INTO ' . $joinTable . ' (' . implode(', ', $columns) . ')'
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. ' VALUES (' . implode(', ', array_fill(0, count($columns), '?')) . ')';
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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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* @internal Order of the parameters must be the same as the order of the columns in getInsertRowSql.
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*/
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protected function getInsertRowSQLParameters(PersistentCollection $coll, $element)
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{
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return $this->collectJoinTableColumnParameters($coll, $element);
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}
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/**
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* Collects the parameters for inserting/deleting on the join table in the order
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* of the join table columns as specified in ManyToManyMapping#joinTableColumns.
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*
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* @param \Doctrine\ORM\PersistentCollection $coll
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* @param object $element
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*
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* @return array
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*/
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private function collectJoinTableColumnParameters(PersistentCollection $coll, $element)
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{
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$params = array();
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$mapping = $coll->getMapping();
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$isComposite = count($mapping['joinTableColumns']) > 2;
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$identifier1 = $this->uow->getEntityIdentifier($coll->getOwner());
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$identifier2 = $this->uow->getEntityIdentifier($element);
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if ($isComposite) {
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$class1 = $this->em->getClassMetadata(get_class($coll->getOwner()));
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$class2 = $coll->getTypeClass();
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}
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foreach ($mapping['joinTableColumns'] as $joinTableColumn) {
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$isRelationToSource = isset($mapping['relationToSourceKeyColumns'][$joinTableColumn]);
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if ( ! $isComposite) {
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$params[] = $isRelationToSource ? array_pop($identifier1) : array_pop($identifier2);
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continue;
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}
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if ($isRelationToSource) {
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$params[] = $identifier1[$class1->getFieldForColumn($mapping['relationToSourceKeyColumns'][$joinTableColumn])];
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continue;
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}
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$params[] = $identifier2[$class2->getFieldForColumn($mapping['relationToTargetKeyColumns'][$joinTableColumn])];
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}
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return $params;
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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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protected function getDeleteSQL(PersistentCollection $coll)
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{
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$columns = array();
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$mapping = $coll->getMapping();
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$class = $this->em->getClassMetadata(get_class($coll->getOwner()));
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$joinTable = $this->quoteStrategy->getJoinTableName($mapping, $class, $this->platform);
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foreach ($mapping['joinTable']['joinColumns'] as $joinColumn) {
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$columns[] = $this->quoteStrategy->getJoinColumnName($joinColumn, $class, $this->platform);
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}
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return 'DELETE FROM ' . $joinTable
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. ' WHERE ' . implode(' = ? AND ', $columns) . ' = ?';
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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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* @internal Order of the parameters must be the same as the order of the columns in getDeleteSql.
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*/
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protected function getDeleteSQLParameters(PersistentCollection $coll)
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{
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$mapping = $coll->getMapping();
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$identifier = $this->uow->getEntityIdentifier($coll->getOwner());
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// Optimization for single column identifier
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if (count($mapping['relationToSourceKeyColumns']) === 1) {
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return array(reset($identifier));
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}
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// Composite identifier
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$sourceClass = $this->em->getClassMetadata($mapping['sourceEntity']);
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$params = array();
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foreach ($mapping['relationToSourceKeyColumns'] as $columnName => $refColumnName) {
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$params[] = isset($sourceClass->fieldNames[$refColumnName])
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? $identifier[$sourceClass->fieldNames[$refColumnName]]
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: $identifier[$sourceClass->getFieldForColumn($columnName)];
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}
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return $params;
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}
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/**
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* {@inheritdoc}
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*/
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public function count(PersistentCollection $coll)
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{
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$conditions = array();
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$params = array();
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$mapping = $coll->getMapping();
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$association = $mapping;
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$class = $this->em->getClassMetadata($mapping['sourceEntity']);
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$id = $this->em->getUnitOfWork()->getEntityIdentifier($coll->getOwner());
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if ( ! $mapping['isOwningSide']) {
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$targetEntity = $this->em->getClassMetadata($mapping['targetEntity']);
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$association = $targetEntity->associationMappings[$mapping['mappedBy']];
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}
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$joinColumns = ( ! $mapping['isOwningSide'])
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? $association['joinTable']['inverseJoinColumns']
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: $association['joinTable']['joinColumns'];
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foreach ($joinColumns as $joinColumn) {
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$columnName = $this->quoteStrategy->getJoinColumnName($joinColumn, $class, $this->platform);
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$referencedName = $joinColumn['referencedColumnName'];
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$conditions[] = $columnName . ' = ?';
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$params[] = ($class->containsForeignIdentifier)
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? $id[$class->getFieldForColumn($referencedName)]
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: $id[$class->fieldNames[$referencedName]];
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}
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$joinTableName = $this->quoteStrategy->getJoinTableName($association, $class, $this->platform);
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list($joinTargetEntitySQL, $filterSql) = $this->getFilterSql($mapping);
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if ($filterSql) {
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$conditions[] = $filterSql;
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}
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$sql = 'SELECT COUNT(*)'
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. ' FROM ' . $joinTableName . ' t'
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. $joinTargetEntitySQL
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. ' WHERE ' . implode(' AND ', $conditions);
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return $this->conn->fetchColumn($sql, $params);
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}
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/**
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* @param \Doctrine\ORM\PersistentCollection $coll
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* @param int $offset
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* @param int|null $length
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*
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* @return array
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*/
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public function slice(PersistentCollection $coll, $offset, $length = null)
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{
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$mapping = $coll->getMapping();
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return $this->em->getUnitOfWork()->getEntityPersister($mapping['targetEntity'])->getManyToManyCollection($mapping, $coll->getOwner(), $offset, $length);
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}
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/**
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* @param \Doctrine\ORM\PersistentCollection $coll
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* @param object $element
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*
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* @return boolean
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*/
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public function contains(PersistentCollection $coll, $element)
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{
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$uow = $this->em->getUnitOfWork();
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// Shortcut for new entities
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$entityState = $uow->getEntityState($element, UnitOfWork::STATE_NEW);
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if ($entityState === UnitOfWork::STATE_NEW) {
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return false;
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}
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// Entity is scheduled for inclusion
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if ($entityState === UnitOfWork::STATE_MANAGED && $uow->isScheduledForInsert($element)) {
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return false;
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}
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list($quotedJoinTable, $whereClauses, $params) = $this->getJoinTableRestrictions($coll, $element, true);
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$sql = 'SELECT 1 FROM ' . $quotedJoinTable . ' WHERE ' . implode(' AND ', $whereClauses);
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return (bool) $this->conn->fetchColumn($sql, $params);
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}
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/**
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* @param \Doctrine\ORM\PersistentCollection $coll
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* @param object $element
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*
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* @return boolean
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*/
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public function removeElement(PersistentCollection $coll, $element)
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{
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$uow = $this->em->getUnitOfWork();
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// shortcut for new entities
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$entityState = $uow->getEntityState($element, UnitOfWork::STATE_NEW);
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if ($entityState === UnitOfWork::STATE_NEW) {
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return false;
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}
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// If Entity is scheduled for inclusion, it is not in this collection.
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// We can assure that because it would have return true before on array check
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if ($entityState === UnitOfWork::STATE_MANAGED && $uow->isScheduledForInsert($element)) {
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return false;
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}
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list($quotedJoinTable, $whereClauses, $params) = $this->getJoinTableRestrictions($coll, $element, false);
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$sql = 'DELETE FROM ' . $quotedJoinTable . ' WHERE ' . implode(' AND ', $whereClauses);
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return (bool) $this->conn->executeUpdate($sql, $params);
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}
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/**
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* @param \Doctrine\ORM\PersistentCollection $coll
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* @param object $element
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* @param boolean $addFilters Whether the filter SQL should be included or not.
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*
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* @return array
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*/
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private function getJoinTableRestrictions(PersistentCollection $coll, $element, $addFilters)
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{
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$uow = $this->em->getUnitOfWork();
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$filterMapping = $coll->getMapping();
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$mapping = $filterMapping;
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if ( ! $mapping['isOwningSide']) {
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$sourceClass = $this->em->getClassMetadata($mapping['targetEntity']);
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$targetClass = $this->em->getClassMetadata($mapping['sourceEntity']);
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$sourceId = $uow->getEntityIdentifier($element);
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$targetId = $uow->getEntityIdentifier($coll->getOwner());
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$mapping = $sourceClass->associationMappings[$mapping['mappedBy']];
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} else {
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$sourceClass = $this->em->getClassMetadata($mapping['sourceEntity']);
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$targetClass = $this->em->getClassMetadata($mapping['targetEntity']);
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$sourceId = $uow->getEntityIdentifier($coll->getOwner());
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$targetId = $uow->getEntityIdentifier($element);
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}
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$quotedJoinTable = $this->quoteStrategy->getJoinTableName($mapping, $sourceClass, $this->platform);
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$whereClauses = array();
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$params = array();
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foreach ($mapping['joinTableColumns'] as $joinTableColumn) {
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$whereClauses[] = $joinTableColumn . ' = ?';
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if (isset($mapping['relationToTargetKeyColumns'][$joinTableColumn])) {
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$params[] = ($targetClass->containsForeignIdentifier)
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? $targetId[$targetClass->getFieldForColumn($mapping['relationToTargetKeyColumns'][$joinTableColumn])]
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: $targetId[$targetClass->fieldNames[$mapping['relationToTargetKeyColumns'][$joinTableColumn]]];
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continue;
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}
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// relationToSourceKeyColumns
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$params[] = ($sourceClass->containsForeignIdentifier)
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? $sourceId[$sourceClass->getFieldForColumn($mapping['relationToSourceKeyColumns'][$joinTableColumn])]
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: $sourceId[$sourceClass->fieldNames[$mapping['relationToSourceKeyColumns'][$joinTableColumn]]];
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}
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if ($addFilters) {
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list($joinTargetEntitySQL, $filterSql) = $this->getFilterSql($filterMapping);
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if ($filterSql) {
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$quotedJoinTable .= ' t ' . $joinTargetEntitySQL;
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$whereClauses[] = $filterSql;
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}
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}
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return array($quotedJoinTable, $whereClauses, $params);
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}
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/**
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* Generates the filter SQL for a given mapping.
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*
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* This method is not used for actually grabbing the related entities
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* but when the extra-lazy collection methods are called on a filtered
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* association. This is why besides the many to many table we also
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* have to join in the actual entities table leading to additional
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* JOIN.
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*
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* @param array $mapping Array containing mapping information.
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*
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* @return string The SQL query part to add to a query.
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*/
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public function getFilterSql($mapping)
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{
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$targetClass = $this->em->getClassMetadata($mapping['targetEntity']);
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$rootClass = $this->em->getClassMetadata($targetClass->rootEntityName);
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$filterSql = $this->generateFilterConditionSQL($rootClass, 'te');
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if ('' === $filterSql) {
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return array('', '');
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}
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$conditions = array();
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$association = $mapping;
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if ( ! $mapping['isOwningSide']) {
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$class = $this->em->getClassMetadata($mapping['targetEntity']);
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$association = $class->associationMappings[$mapping['mappedBy']];
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}
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// A join is needed if there is filtering on the target entity
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$tableName = $this->quoteStrategy->getTableName($rootClass, $this->platform);
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$joinSql = ' JOIN ' . $tableName . ' te' . ' ON';
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$joinColumns = $mapping['isOwningSide']
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? $association['joinTable']['inverseJoinColumns']
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: $association['joinTable']['joinColumns'];
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foreach ($joinColumns as $joinColumn) {
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$joinColumnName = $this->quoteStrategy->getJoinColumnName($joinColumn, $targetClass, $this->platform);
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$refColumnName = $this->quoteStrategy->getReferencedJoinColumnName($joinColumn, $targetClass, $this->platform);
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$conditions[] = ' t.' . $joinColumnName . ' = ' . 'te.' . $refColumnName;
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}
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$joinSql .= implode(' AND ', $conditions);
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return array($joinSql, $filterSql);
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}
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/**
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* Generates the filter SQL for a given entity and table alias.
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*
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* @param ClassMetadata $targetEntity Metadata of the target entity.
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* @param string $targetTableAlias The table alias of the joined/selected table.
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*
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* @return string The SQL query part to add to a query.
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*/
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protected function generateFilterConditionSQL(ClassMetadata $targetEntity, $targetTableAlias)
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{
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$filterClauses = array();
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foreach ($this->em->getFilters()->getEnabledFilters() as $filter) {
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if ($filterExpr = $filter->addFilterConstraint($targetEntity, $targetTableAlias)) {
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$filterClauses[] = '(' . $filterExpr . ')';
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}
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}
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$sql = implode(' AND ', $filterClauses);
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return $sql ? "(" . $sql . ")" : "";
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}
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}
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