.
*/
namespace Doctrine\ORM\Persisters;
use Doctrine\Common\DoctrineException;
/**
* The joined subclass persister maps a single entity instance to several tables in the
* database as it is defined by Class Table Inheritance.
*
* @author Roman Borschel
* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
* @version $Revision$
* @link www.doctrine-project.org
* @since 2.0
* @todo Reimplement.
*/
class JoinedSubclassPersister extends StandardEntityPersister
{
/** Map that maps column names to the table names that own them.
* This is mainly a temporary cache, used during a single request.
*/
private $_owningTableMap = array();
/**
* {@inheritdoc}
*
* @override
*/
protected function _prepareData($entity, array &$result, $isInsert = false)
{
parent::_prepareData($entity, $result, $isInsert);
// Populate the discriminator column
if ($isInsert) {
$discColumn = $this->_class->discriminatorColumn;
$rootClass = $this->_em->getClassMetadata($this->_class->rootEntityName);
$result[$rootClass->primaryTable['name']][$discColumn['name']] =
$this->_class->discriminatorValue;
}
}
/**
* {@inheritdoc}
*
* @override
*/
public function getOwningTable($fieldName)
{
if ( ! isset($this->_owningTableMap[$fieldName])) {
if (isset($this->_class->associationMappings[$fieldName])) {
if (isset($this->_class->inheritedAssociationFields[$fieldName])) {
$this->_owningTableMap[$fieldName] = $this->_em->getClassMetadata(
$this->_class->inheritedAssociationFields[$fieldName])->primaryTable['name'];
} else {
$this->_owningTableMap[$fieldName] = $this->_class->primaryTable['name'];
}
} else if (isset($this->_class->fieldMappings[$fieldName]['inherited'])) {
$this->_owningTableMap[$fieldName] = $this->_em->getClassMetadata(
$this->_class->fieldMappings[$fieldName]['inherited'])->primaryTable['name'];
} else {
$this->_owningTableMap[$fieldName] = $this->_class->primaryTable['name'];
}
}
return $this->_owningTableMap[$fieldName];
}
/**
* {@inheritdoc}
*
* @override
*/
public function executeInserts()
{
if ( ! $this->_queuedInserts) {
return;
}
$postInsertIds = array();
$idGen = $this->_class->idGenerator;
$isPostInsertId = $idGen->isPostInsertGenerator();
// Prepare statements for all tables
$stmts = $classes = array();
$stmts[$this->_class->primaryTable['name']] = $this->_conn->prepare($this->_class->insertSql);
$classes[$this->_class->name] = $this->_class;
foreach ($this->_class->parentClasses as $parentClass) {
$classes[$parentClass] = $this->_em->getClassMetadata($parentClass);
$stmts[$classes[$parentClass]->primaryTable['name']] = $this->_conn->prepare($classes[$parentClass]->insertSql);
}
$rootTableName = $classes[$this->_class->rootEntityName]->primaryTable['name'];
foreach ($this->_queuedInserts as $entity) {
$insertData = array();
$this->_prepareData($entity, $insertData, true);
// Execute insert on root table
$paramIndex = 1;
$stmt = $stmts[$rootTableName];
foreach ($insertData[$rootTableName] as $columnName => $value) {
$stmt->bindValue($paramIndex++, $value/*, TODO: TYPE*/);
}
$stmt->execute();
unset($insertData[$rootTableName]);
if ($isPostInsertId) {
$id = $idGen->generate($this->_em, $entity);
$postInsertIds[$id] = $entity;
} else {
$id = $this->_em->getUnitOfWork()->getEntityIdentifier($entity);
}
// Execute inserts on subtables
foreach ($insertData as $tableName => $data) {
$stmt = $stmts[$tableName];
$paramIndex = 1;
foreach ((array)$id as $idVal) {
$stmt->bindValue($paramIndex++, $idVal/*, TODO: TYPE*/);
}
foreach ($data as $columnName => $value) {
$stmt->bindValue($paramIndex++, $value/*, TODO: TYPE*/);
}
$stmt->execute();
}
}
foreach ($stmts as $stmt)
$stmt->closeCursor();
$this->_queuedInserts = array();
return $postInsertIds;
}
/**
* Updates an entity.
*
* @param object $entity The entity to update.
* @override
*/
public function update($entity)
{
$updateData = array();
$this->_prepareData($entity, $updateData);
$id = array_combine(
$this->_class->getIdentifierFieldNames(),
$this->_em->getUnitOfWork()->getEntityIdentifier($entity)
);
foreach ($updateData as $tableName => $data) {
$this->_conn->update($tableName, $updateData[$tableName], $id);
}
}
/**
* Deletes an entity.
*
* @param object $entity The entity to delete.
* @override
*/
public function delete($entity)
{
$id = array_combine(
$this->_class->getIdentifierFieldNames(),
$this->_em->getUnitOfWork()->getEntityIdentifier($entity)
);
// If the database platform supports FKs, just
// delete the row from the root table. Cascades do the rest.
if ($this->_conn->getDatabasePlatform()->supportsForeignKeyConstraints()) {
$this->_conn->delete($this->_em->getClassMetadata($this->_class->rootEntityName)
->primaryTable['name'], $id);
} else {
// Delete the parent tables, starting from this class' table up to the root table
$this->_conn->delete($this->_class->primaryTable['name'], $id);
foreach ($this->_class->parentClasses as $parentClass) {
$this->_conn->delete($this->_em->getClassMetadata($parentClass)->primaryTable['name'], $id);
}
}
}
/**
* Adds all parent classes as INNER JOINs and subclasses as OUTER JOINs
* to the query.
*
* Callback that is invoked during the SQL construction process.
*
* @return array The custom joins in the format =>
*/
/*public function getCustomJoins()
{
$customJoins = array();
$classMetadata = $this->_classMetadata;
foreach ($classMetadata->parentClasses as $parentClass) {
$customJoins[$parentClass] = 'INNER';
}
foreach ($classMetadata->subClasses as $subClass) {
if ($subClass != $this->getComponentName()) {
$customJoins[$subClass] = 'LEFT';
}
}
return $customJoins;
}*/
/**
* Adds the discriminator column to the selected fields in a query as well as
* all fields of subclasses. In Class Table Inheritance the default behavior is that
* all subclasses are joined in through OUTER JOINs when querying a base class.
*
* Callback that is invoked during the SQL construction process.
*
* @return array An array with the field names that will get added to the query.
*/
/*public function getCustomFields()
{
$classMetadata = $this->_classMetadata;
$conn = $this->_conn;
$discrColumn = $classMetadata->discriminatorColumn;
$fields = array($discrColumn['name']);
if ($classMetadata->subClasses) {
foreach ($classMetadata->subClasses as $subClass) {
$fields = array_merge($conn->getClassMetadata($subClass)->fieldNames, $fields);
}
}
return array_unique($fields);
}*/
/**
*
* @todo Looks like this better belongs into the ClassMetadata class.
*/
/*public function getOwningClass($fieldName)
{
$conn = $this->_conn;
$classMetadata = $this->_classMetadata;
if ($classMetadata->hasField($fieldName) && ! $classMetadata->isInheritedField($fieldName)) {
return $classMetadata;
}
foreach ($classMetadata->parentClasses as $parentClass) {
$parentTable = $conn->getClassMetadata($parentClass);
if ($parentTable->hasField($fieldName) && ! $parentTable->isInheritedField($fieldName)) {
return $parentTable;
}
}
foreach ((array)$classMetadata->subClasses as $subClass) {
$subTable = $conn->getClassMetadata($subClass);
if ($subTable->hasField($fieldName) && ! $subTable->isInheritedField($fieldName)) {
return $subTable;
}
}
throw \Doctrine\Common\DoctrineException::updateMe("Unable to find defining class of field '$fieldName'.");
}*/
}