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doctrine2/lib/Doctrine/ORM/Persisters/JoinedSubclassPersister.php

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<?php
/*
* 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\ORMException,
Doctrine\ORM\Mapping\ClassMetadata;
/**
* The joined subclass persister maps a single entity instance to several tables in the
* database as it is defined by the <tt>Class Table Inheritance</tt> strategy.
*
* @author Roman Borschel <roman@code-factory.org>
* @since 2.0
* @see http://martinfowler.com/eaaCatalog/classTableInheritance.html
*/
class JoinedSubclassPersister extends AbstractEntityInheritancePersister
{
/**
* Map that maps column names to the table names that own them.
* This is mainly a temporary cache, used during a single request.
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*/
private $_owningTableMap = array();
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/**
* {@inheritdoc}
*/
protected function _getDiscriminatorColumnTableName()
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{
if ($this->_class->name == $this->_class->rootEntityName) {
return $this->_class->table['name'];
} else {
return $this->_em->getClassMetadata($this->_class->rootEntityName)->table['name'];
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}
}
/**
* This function finds the ClassMetadata instance in an inheritance hierarchy
* that is responsible for enabling versioning.
*
* @return Doctrine\ORM\Mapping\ClassMetadata
*/
private function _getVersionedClassMetadata()
{
if (isset($this->_class->fieldMappings[$this->_class->versionField]['inherited'])) {
$definingClassName = $this->_class->fieldMappings[$this->_class->versionField]['inherited'];
return $this->_em->getClassMetadata($definingClassName);
}
return $this->_class;
}
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/**
* Gets the name of the table that owns the column the given field is mapped to.
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*
* @param string $fieldName
* @return string
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* @override
*/
public function getOwningTable($fieldName)
{
if ( ! isset($this->_owningTableMap[$fieldName])) {
if (isset($this->_class->associationMappings[$fieldName]['inherited'])) {
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$this->_owningTableMap[$fieldName] = $this->_em->getClassMetadata(
$this->_class->associationMappings[$fieldName]['inherited']
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)->table['name'];
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} else if (isset($this->_class->fieldMappings[$fieldName]['inherited'])) {
$this->_owningTableMap[$fieldName] = $this->_em->getClassMetadata(
$this->_class->fieldMappings[$fieldName]['inherited']
)->table['name'];
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} else {
$this->_owningTableMap[$fieldName] = $this->_class->table['name'];
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}
}
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return $this->_owningTableMap[$fieldName];
}
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/**
* {@inheritdoc}
*/
public function executeInserts()
{
if ( ! $this->_queuedInserts) {
return;
}
if ($this->_class->isVersioned) {
$versionedClass = $this->_getVersionedClassMetadata();
}
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$postInsertIds = array();
$idGen = $this->_class->idGenerator;
$isPostInsertId = $idGen->isPostInsertGenerator();
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// Prepare statement for the root table
$rootClass = $this->_class->name == $this->_class->rootEntityName ?
$this->_class : $this->_em->getClassMetadata($this->_class->rootEntityName);
$rootPersister = $this->_em->getUnitOfWork()->getEntityPersister($rootClass->name);
$rootTableName = $rootClass->table['name'];
$rootTableStmt = $this->_conn->prepare($rootPersister->_getInsertSQL());
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// Prepare statements for sub tables.
$subTableStmts = array();
if ($rootClass !== $this->_class) {
$subTableStmts[$this->_class->table['name']] = $this->_conn->prepare($this->_getInsertSQL());
}
foreach ($this->_class->parentClasses as $parentClassName) {
$parentClass = $this->_em->getClassMetadata($parentClassName);
$parentTableName = $parentClass->table['name'];
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if ($parentClass !== $rootClass) {
$parentPersister = $this->_em->getUnitOfWork()->getEntityPersister($parentClassName);
$subTableStmts[$parentTableName] = $this->_conn->prepare($parentPersister->_getInsertSQL());
}
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}
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// Execute all inserts. For each entity:
// 1) Insert on root table
// 2) Insert on sub tables
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foreach ($this->_queuedInserts as $entity) {
$insertData = $this->_prepareInsertData($entity);
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// Execute insert on root table
$paramIndex = 1;
foreach ($insertData[$rootTableName] as $columnName => $value) {
$rootTableStmt->bindValue($paramIndex++, $value, $this->_columnTypes[$columnName]);
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}
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$rootTableStmt->execute();
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if ($isPostInsertId) {
$id = $idGen->generate($this->_em, $entity);
$postInsertIds[$id] = $entity;
} else {
$id = $this->_em->getUnitOfWork()->getEntityIdentifier($entity);
}
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// Execute inserts on subtables.
// The order doesn't matter because all child tables link to the root table via FK.
foreach ($subTableStmts as $tableName => $stmt) {
$data = isset($insertData[$tableName]) ? $insertData[$tableName] : array();
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$paramIndex = 1;
foreach ((array) $id as $idVal) {
$stmt->bindValue($paramIndex++, $idVal);
}
foreach ($data as $columnName => $value) {
$stmt->bindValue($paramIndex++, $value, $this->_columnTypes[$columnName]);
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}
$stmt->execute();
}
}
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$rootTableStmt->closeCursor();
foreach ($subTableStmts as $stmt) {
$stmt->closeCursor();
}
if (isset($versionedClass)) {
$this->_assignDefaultVersionValue($versionedClass, $entity, $id);
}
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$this->_queuedInserts = array();
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return $postInsertIds;
}
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/**
* {@inheritdoc}
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*/
public function update($entity)
{
$updateData = $this->_prepareUpdateData($entity);
if ($isVersioned = $this->_class->isVersioned) {
$versionedTable = $this->_getVersionedClassMetadata()->table['name'];
}
if ($updateData) {
foreach ($updateData as $tableName => $data) {
$this->_updateTable($entity, $tableName, $data, $isVersioned && $versionedTable == $tableName);
}
// Make sure the table with the version column is updated even if no columns on that
// table were affected.
if ($isVersioned && ! isset($updateData[$versionedTable])) {
$this->_updateTable($entity, $versionedTable, array(), true);
}
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}
}
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/**
* {@inheritdoc}
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*/
public function delete($entity)
{
$identifier = $this->_em->getUnitOfWork()->getEntityIdentifier($entity);
$this->deleteJoinTableRecords($identifier);
$id = array_combine($this->_class->getIdentifierColumnNames(), $identifier);
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// If the database platform supports FKs, just
// delete the row from the root table. Cascades do the rest.
if ($this->_platform->supportsForeignKeyConstraints()) {
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$this->_conn->delete($this->_em->getClassMetadata($this->_class->rootEntityName)
->getQuotedTableName($this->_platform), $id);
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} else {
// Delete from all tables individually, starting from this class' table up to the root table.
$this->_conn->delete($this->_class->getQuotedTableName($this->_platform), $id);
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foreach ($this->_class->parentClasses as $parentClass) {
$this->_conn->delete($this->_em->getClassMetadata($parentClass)->getQuotedTableName($this->_platform), $id);
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}
}
}
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/**
* {@inheritdoc}
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*/
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protected function _getSelectEntitiesSQL(array $criteria, $assoc = null, $lockMode = 0)
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{
$idColumns = $this->_class->getIdentifierColumnNames();
$baseTableAlias = $this->_getSQLTableAlias($this->_class->name);
// Create the column list fragment only once
if ($this->_selectColumnListSql === null) {
// Add regular columns
$columnList = '';
foreach ($this->_class->fieldMappings as $fieldName => $mapping) {
if ($columnList != '') $columnList .= ', ';
$columnList .= $this->_getSelectColumnSQL($fieldName,
isset($mapping['inherited']) ?
$this->_em->getClassMetadata($mapping['inherited']) :
$this->_class);
}
// Add foreign key columns
foreach ($this->_class->associationMappings as $assoc2) {
if ($assoc2['isOwningSide'] && $assoc2['type'] & ClassMetadata::TO_ONE) {
$tableAlias = isset($assoc2['inherited']) ?
$this->_getSQLTableAlias($assoc2['inherited'])
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: $baseTableAlias;
foreach ($assoc2['targetToSourceKeyColumns'] as $srcColumn) {
$columnAlias = $srcColumn . $this->_sqlAliasCounter++;
$columnList .= ", $tableAlias.$srcColumn AS $columnAlias";
$resultColumnName = $this->_platform->getSQLResultCasing($columnAlias);
if ( ! isset($this->_resultColumnNames[$resultColumnName])) {
$this->_resultColumnNames[$resultColumnName] = $srcColumn;
}
}
}
}
// Add discriminator column (DO NOT ALIAS, see AbstractEntityInheritancePersister#_processSQLResult).
$discrColumn = $this->_class->discriminatorColumn['name'];
if ($this->_class->rootEntityName == $this->_class->name) {
$columnList .= ", $baseTableAlias.$discrColumn";
} else {
$columnList .= ', ' . $this->_getSQLTableAlias($this->_class->rootEntityName)
. ".$discrColumn";
}
$resultColumnName = $this->_platform->getSQLResultCasing($discrColumn);
$this->_resultColumnNames[$resultColumnName] = $discrColumn;
}
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// INNER JOIN parent tables
$joinSql = '';
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foreach ($this->_class->parentClasses as $parentClassName) {
$parentClass = $this->_em->getClassMetadata($parentClassName);
$tableAlias = $this->_getSQLTableAlias($parentClassName);
$joinSql .= ' INNER JOIN ' . $parentClass->getQuotedTableName($this->_platform) . ' ' . $tableAlias . ' ON ';
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$first = true;
foreach ($idColumns as $idColumn) {
if ($first) $first = false; else $joinSql .= ' AND ';
$joinSql .= $baseTableAlias . '.' . $idColumn . ' = ' . $tableAlias . '.' . $idColumn;
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}
}
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// OUTER JOIN sub tables
foreach ($this->_class->subClasses as $subClassName) {
$subClass = $this->_em->getClassMetadata($subClassName);
$tableAlias = $this->_getSQLTableAlias($subClassName);
if ($this->_selectColumnListSql === null) {
// Add subclass columns
foreach ($subClass->fieldMappings as $fieldName => $mapping) {
if (isset($mapping['inherited'])) {
continue;
}
$columnList .= ', ' . $this->_getSelectColumnSQL($fieldName, $subClass);
}
// Add join columns (foreign keys)
foreach ($subClass->associationMappings as $assoc2) {
if ($assoc2['isOwningSide'] && $assoc2['type'] & ClassMetadata::TO_ONE
&& ! isset($assoc2['inherited'])) {
foreach ($assoc2['targetToSourceKeyColumns'] as $srcColumn) {
$columnAlias = $srcColumn . $this->_sqlAliasCounter++;
$columnList .= ', ' . $tableAlias . ".$srcColumn AS $columnAlias";
$resultColumnName = $this->_platform->getSQLResultCasing($columnAlias);
if ( ! isset($this->_resultColumnNames[$resultColumnName])) {
$this->_resultColumnNames[$resultColumnName] = $srcColumn;
}
}
}
}
}
// Add LEFT JOIN
$joinSql .= ' LEFT JOIN ' . $subClass->getQuotedTableName($this->_platform) . ' ' . $tableAlias . ' ON ';
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$first = true;
foreach ($idColumns as $idColumn) {
if ($first) $first = false; else $joinSql .= ' AND ';
$joinSql .= $baseTableAlias . '.' . $idColumn . ' = ' . $tableAlias . '.' . $idColumn;
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}
}
$joinSql .= $assoc != null && $assoc['type'] == ClassMetadata::MANY_TO_MANY ?
$this->_getSelectManyToManyJoinSQL($assoc) : '';
$conditionSql = $this->_getSelectConditionSQL($criteria, $assoc);
$orderBySql = '';
if ($assoc != null && isset($assoc['orderBy'])) {
$orderBySql = $this->_getCollectionOrderBySQL($assoc['orderBy'], $baseTableAlias);
}
if ($this->_selectColumnListSql === null) {
$this->_selectColumnListSql = $columnList;
}
return 'SELECT ' . $this->_selectColumnListSql
. ' FROM ' . $this->_class->getQuotedTableName($this->_platform) . ' ' . $baseTableAlias
. $joinSql
. ($conditionSql != '' ? ' WHERE ' . $conditionSql : '') . $orderBySql;
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}
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/**
* Get the FROM and optionally JOIN conditions to lock the entity managed by this persister.
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*
* @return string
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*/
public function getLockTablesSql()
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{
$baseTableAlias = $this->_getSQLTableAlias($this->_class->name);
// INNER JOIN parent tables
$joinSql = '';
foreach ($this->_class->parentClasses as $parentClassName) {
$parentClass = $this->_em->getClassMetadata($parentClassName);
$tableAlias = $this->_getSQLTableAlias($parentClassName);
$joinSql .= ' INNER JOIN ' . $parentClass->getQuotedTableName($this->_platform) . ' ' . $tableAlias . ' ON ';
$first = true;
foreach ($idColumns as $idColumn) {
if ($first) $first = false; else $joinSql .= ' AND ';
$joinSql .= $baseTableAlias . '.' . $idColumn . ' = ' . $tableAlias . '.' . $idColumn;
}
}
return 'FROM ' . $this->_class->getQuotedTableName($this->_platform) . ' ' . $baseTableAlias . $joinSql;
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}
/* Ensure this method is never called. This persister overrides _getSelectEntitiesSQL directly. */
protected function _getSelectColumnListSQL()
{
throw new \BadMethodCallException("Illegal invocation of ".__METHOD__.".");
}
/** {@inheritdoc} */
protected function _getInsertColumnList()
{
// Identifier columns must always come first in the column list of subclasses.
$columns = $this->_class->parentClasses ? $this->_class->getIdentifierColumnNames() : array();
foreach ($this->_class->reflFields as $name => $field) {
if (isset($this->_class->fieldMappings[$name]['inherited']) && ! isset($this->_class->fieldMappings[$name]['id'])
|| isset($this->_class->associationMappings[$name]['inherited'])
|| ($this->_class->isVersioned && $this->_class->versionField == $name)) {
continue;
}
if (isset($this->_class->associationMappings[$name])) {
$assoc = $this->_class->associationMappings[$name];
if ($assoc['type'] & ClassMetadata::TO_ONE && $assoc['isOwningSide']) {
foreach ($assoc['targetToSourceKeyColumns'] as $sourceCol) {
$columns[] = $sourceCol;
}
}
} else if ($this->_class->name != $this->_class->rootEntityName ||
! $this->_class->isIdGeneratorIdentity() || $this->_class->identifier[0] != $name) {
$columns[] = $this->_class->getQuotedColumnName($name, $this->_platform);
}
}
// Add discriminator column if it is the topmost class.
if ($this->_class->name == $this->_class->rootEntityName) {
$columns[] = $this->_class->discriminatorColumn['name'];
}
return $columns;
}
}