<?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.doctrine-project.org>.
*/
namespace Doctrine\ORM\Persisters;
use Doctrine\ORM\PersistentCollection,
Doctrine\ORM\UnitOfWork;
/**
* Persister for many-to-many collections.
*
* @author Roman Borschel <roman@code-factory.org>
* @since 2.0
*/
class ManyToManyPersister extends AbstractCollectionPersister
{
/**
* {@inheritdoc}
*
* @override
*/
protected function _getDeleteRowSQL(PersistentCollection $coll)
{
$mapping = $coll->getMapping();
$class = $this->_em->getClassMetadata(get_class($coll->getOwner()));
return 'DELETE FROM ' . $class->getQuotedJoinTableName($mapping, $this->_conn->getDatabasePlatform())
. ' WHERE ' . implode(' = ? AND ', $mapping['joinTableColumns']) . ' = ?';
}
/**
* {@inheritdoc}
*
* @override
* @internal Order of the parameters must be the same as the order of the columns in
* _getDeleteRowSql.
*/
protected function _getDeleteRowSQLParameters(PersistentCollection $coll, $element)
{
return $this->_collectJoinTableColumnParameters($coll, $element);
}
/**
* {@inheritdoc}
*
* @override
*/
protected function _getUpdateRowSQL(PersistentCollection $coll)
{}
/**
* {@inheritdoc}
*
* @override
* @internal Order of the parameters must be the same as the order of the columns in
* _getInsertRowSql.
*/
protected function _getInsertRowSQL(PersistentCollection $coll)
{
$mapping = $coll->getMapping();
$columns = $mapping['joinTableColumns'];
$class = $this->_em->getClassMetadata(get_class($coll->getOwner()));
return 'INSERT INTO ' . $class->getQuotedJoinTableName($mapping, $this->_conn->getDatabasePlatform())
. ' (' . implode(', ', $columns) . ') VALUES (' . implode(', ', array_fill(0, count($columns), '?')) . ')';
}
/**
* {@inheritdoc}
*
* @override
* @internal Order of the parameters must be the same as the order of the columns in
* _getInsertRowSql.
*/
protected function _getInsertRowSQLParameters(PersistentCollection $coll, $element)
{
return $this->_collectJoinTableColumnParameters($coll, $element);
}
/**
* Collects the parameters for inserting/deleting on the join table in the order
* of the join table columns as specified in ManyToManyMapping#joinTableColumns.
*
* @param $coll
* @param $element
* @return array
*/
private function _collectJoinTableColumnParameters(PersistentCollection $coll, $element)
{
$params = array();
$mapping = $coll->getMapping();
$isComposite = count($mapping['joinTableColumns']) > 2;
$identifier1 = $this->_uow->getEntityIdentifier($coll->getOwner());
$identifier2 = $this->_uow->getEntityIdentifier($element);
if ($isComposite) {
$class1 = $this->_em->getClassMetadata(get_class($coll->getOwner()));
$class2 = $coll->getTypeClass();
}
foreach ($mapping['joinTableColumns'] as $joinTableColumn) {
if (isset($mapping['relationToSourceKeyColumns'][$joinTableColumn])) {
if ($isComposite) {
if ($class1->containsForeignIdentifier) {
$params[] = $identifier1[$class1->getFieldForColumn($mapping['relationToSourceKeyColumns'][$joinTableColumn])];
} else {
$params[] = $identifier1[$class1->fieldNames[$mapping['relationToSourceKeyColumns'][$joinTableColumn]]];
}
} else {
$params[] = array_pop($identifier1);
}
} else {
if ($isComposite) {
if ($class2->containsForeignIdentifier) {
$params[] = $identifier2[$class2->getFieldForColumn($mapping['relationToTargetKeyColumns'][$joinTableColumn])];
} else {
$params[] = $identifier2[$class2->fieldNames[$mapping['relationToTargetKeyColumns'][$joinTableColumn]]];
}
} else {
$params[] = array_pop($identifier2);
}
}
}
return $params;
}
/**
* {@inheritdoc}
*
* @override
*/
protected function _getDeleteSQL(PersistentCollection $coll)
{
$mapping = $coll->getMapping();
$class = $this->_em->getClassMetadata(get_class($coll->getOwner()));
$joinTable = $mapping['joinTable'];
$whereClause = '';
foreach ($mapping['relationToSourceKeyColumns'] as $relationColumn => $srcColumn) {
if ($whereClause !== '') $whereClause .= ' AND ';
$whereClause .= $relationColumn . ' = ?';
}
return 'DELETE FROM ' . $class->getQuotedJoinTableName($mapping, $this->_conn->getDatabasePlatform())
. ' WHERE ' . $whereClause;
}
/**
* {@inheritdoc}
*
* @override
* @internal Order of the parameters must be the same as the order of the columns in
* _getDeleteSql.
*/
protected function _getDeleteSQLParameters(PersistentCollection $coll)
{
$params = array();
$mapping = $coll->getMapping();
$identifier = $this->_uow->getEntityIdentifier($coll->getOwner());
if (count($mapping['relationToSourceKeyColumns']) > 1) {
$sourceClass = $this->_em->getClassMetadata(get_class($mapping->getOwner()));
foreach ($mapping['relationToSourceKeyColumns'] as $relColumn => $srcColumn) {
$params[] = $identifier[$sourceClass->fieldNames[$srcColumn]];
}
} else {
$params[] = array_pop($identifier);
}
return $params;
}
/**
* {@inheritdoc}
*/
public function count(PersistentCollection $coll)
{
$params = array();
$mapping = $coll->getMapping();
$class = $this->_em->getClassMetadata($mapping['sourceEntity']);
$id = $this->_em->getUnitOfWork()->getEntityIdentifier($coll->getOwner());
if ($mapping['isOwningSide']) {
$joinColumns = $mapping['relationToSourceKeyColumns'];
} else {
$mapping = $this->_em->getClassMetadata($mapping['targetEntity'])->associationMappings[$mapping['mappedBy']];
$joinColumns = $mapping['relationToTargetKeyColumns'];
}
$whereClause = '';
foreach ($mapping['joinTableColumns'] as $joinTableColumn) {
if (isset($joinColumns[$joinTableColumn])) {
if ($whereClause !== '') {
$whereClause .= ' AND ';
}
$whereClause .= "$joinTableColumn = ?";
$params[] = ($class->containsForeignIdentifier)
? $id[$class->getFieldForColumn($joinColumns[$joinTableColumn])]
: $id[$class->fieldNames[$joinColumns[$joinTableColumn]]];
}
}
$sql = 'SELECT COUNT(*)'
. ' FROM ' . $class->getQuotedJoinTableName($mapping, $this->_conn->getDatabasePlatform())
. ' WHERE ' . $whereClause;
return $this->_conn->fetchColumn($sql, $params);
}
/**
* @param PersistentCollection $coll
* @param int $offset
* @param int $length
* @return array
*/
public function slice(PersistentCollection $coll, $offset, $length = null)
{
$mapping = $coll->getMapping();
return $this->_em->getUnitOfWork()->getEntityPersister($mapping['targetEntity'])->getManyToManyCollection($mapping, $coll->getOwner(), $offset, $length);
}
/**
* @param PersistentCollection $coll
* @param object $element
*/
public function contains(PersistentCollection $coll, $element)
{
$uow = $this->_em->getUnitOfWork();
// shortcut for new entities
if ($uow->getEntityState($element, UnitOfWork::STATE_NEW) == UnitOfWork::STATE_NEW) {
return false;
}
$params = array();
$mapping = $coll->getMapping();
if ( ! $mapping['isOwningSide']) {
$sourceClass = $this->_em->getClassMetadata($mapping['targetEntity']);
$targetClass = $this->_em->getClassMetadata($mapping['sourceEntity']);
$sourceId = $uow->getEntityIdentifier($element);
$targetId = $uow->getEntityIdentifier($coll->getOwner());
$mapping = $sourceClass->associationMappings[$mapping['mappedBy']];
} else {
$sourceClass = $this->_em->getClassMetadata($mapping['sourceEntity']);
$targetClass = $this->_em->getClassMetadata($mapping['targetEntity']);
$sourceId = $uow->getEntityIdentifier($coll->getOwner());
$targetId = $uow->getEntityIdentifier($element);
}
$whereClause = '';
foreach ($mapping['joinTableColumns'] as $joinTableColumn) {
if (isset($mapping['relationToTargetKeyColumns'][$joinTableColumn])) {
if ($whereClause !== '') {
$whereClause .= ' AND ';
}
$whereClause .= $joinTableColumn . ' = ?';
$params[] = ($targetClass->containsForeignIdentifier)
? $targetId[$targetClass->getFieldForColumn($mapping['relationToTargetKeyColumns'][$joinTableColumn])]
: $targetId[$targetClass->fieldNames[$mapping['relationToTargetKeyColumns'][$joinTableColumn]]];
} else if (isset($mapping['relationToSourceKeyColumns'][$joinTableColumn])) {
if ($whereClause !== '') {
$whereClause .= ' AND ';
}
$whereClause .= $joinTableColumn . ' = ?';
$params[] = ($sourceClass->containsForeignIdentifier)
? $sourceId[$sourceClass->getFieldForColumn($mapping['relationToSourceKeyColumns'][$joinTableColumn])]
: $sourceId[$sourceClass->fieldNames[$mapping['relationToSourceKeyColumns'][$joinTableColumn]]];
}
}
$sql = 'SELECT 1'
. ' FROM ' . $sourceClass->getQuotedJoinTableName($mapping, $this->_conn->getDatabasePlatform())
. ' WHERE ' . $whereClause;
return (bool) $this->_conn->fetchColumn($sql, $params);
}
}