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doctrine2/lib/Doctrine/ORM/Mapping/Driver/XmlDriver.php

287 lines
12 KiB
PHP

<?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\Mapping\Driver;
use Doctrine\ORM\Mapping\ClassMetadata;
/**
* XmlDriver is a metadata driver that enables mapping through XML files.
*
* @author Roman Borschel <roman@code-factory.org>
* @since 2.0
*/
class XmlDriver extends AbstractFileDriver
{
protected $_fileExtension = '.dcm.xml';
/**
* Loads the metadata for the specified class into the provided container.
*
* @param string $className
* @param ClassMetadata $metadata
*/
public function loadMetadataForClass($className, ClassMetadata $metadata)
{
$xmlRoot = $this->getElement($className);
if ($xmlRoot->getName() == 'entity') {
// Evaluate <entity...> attributes
if (isset($xmlRoot['table'])) {
$metadata->primaryTable['name'] = (string)$xmlRoot['table'];
}
if (isset($xmlRoot['schema'])) {
$metadata->primaryTable['schema'] = (string)$xmlRoot['schema'];
}
if (isset($xmlRoot['inheritance-type'])) {
$metadata->setInheritanceType((string)$xmlRoot['inheritance-type']);
}
// Evaluate <field ...> mappings
if (isset($xmlRoot->field)) {
foreach ($xmlRoot->field as $fieldMapping) {
$mapping = array(
'fieldName' => (string)$fieldMapping['name'],
'type' => (string)$fieldMapping['type']
);
if (isset($fieldMapping['column'])) {
$mapping['columnName'] = (string)$fieldMapping['column'];
}
if (isset($fieldMapping['length'])) {
$mapping['length'] = (int)$fieldMapping['length'];
}
$metadata->mapField($mapping);
}
}
// Evaluate <id ...> mappings
foreach ($xmlRoot->id as $idElement) {
$mapping = array(
'id' => true,
'fieldName' => (string)$idElement['name'],
'type' => (string)$idElement['type']
);
if (isset($idElement['column'])) {
$mapping['columnName'] = (string)$idElement['column'];
}
$metadata->mapField($mapping);
if (isset($idElement->generator)) {
$metadata->setIdGeneratorType(constant('Doctrine\ORM\Mapping\ClassMetadata::GENERATOR_TYPE_'
. (string)$idElement->generator['strategy']));
}
}
// Evaluate <one-to-one ...> mappings
if (isset($xmlRoot->{'one-to-one'})) {
foreach ($xmlRoot->{'one-to-one'} as $oneToOneElement) {
$mapping = array(
'fieldName' => (string)$oneToOneElement['field'],
'targetEntity' => (string)$oneToOneElement['targetEntity']
);
if (isset($oneToOneElement['mappedBy'])) {
$mapping['mappedBy'] = (string)$oneToOneElement['mappedBy'];
} else {
$joinColumns = array();
if (isset($oneToOneElement->{'join-column'})) {
$joinColumns[] = $this->_getJoinColumnMapping($oneToOneElement->{'join-column'});
} else if (isset($oneToOneElement->{'join-columns'})) {
foreach ($oneToOneElement->{'join-columns'}->{'join-column'} as $joinColumnElement) {
$joinColumns[] = $this->_getJoinColumnMapping($joinColumnElement);
}
} else {
throw MappingException::invalidMapping($mapping['fieldName']);
}
$mapping['joinColumns'] = $joinColumns;
}
if (isset($oneToOneElement->cascade)) {
$mapping['cascade'] = $this->_getCascadeMappings($oneToOneElement->cascade);
}
$metadata->mapOneToOne($mapping);
}
}
// Evaluate <one-to-many ...> mappings
if (isset($xmlRoot->{'one-to-many'})) {
foreach ($xmlRoot->{'one-to-many'} as $oneToManyElement) {
$mapping = array(
'fieldName' => (string)$oneToManyElement['field'],
'targetEntity' => (string)$oneToManyElement['targetEntity'],
'mappedBy' => (string)$oneToManyElement['mappedBy']
);
if (isset($oneToManyElement->cascade)) {
$mapping['cascade'] = $this->_getCascadeMappings($oneToManyElement->cascade);
}
$metadata->mapOneToMany($mapping);
}
}
// Evaluate <many-to-one ...> mappings
if (isset($xmlRoot->{'many-to-one'})) {
foreach ($xmlRoot->{'many-to-one'} as $manyToOneElement) {
$mapping = array(
'fieldName' => (string)$manyToOneElement['field'],
'targetEntity' => (string)$manyToOneElement['targetEntity']
);
$joinColumns = array();
if (isset($manyToOneElement->{'join-column'})) {
$joinColumns[] = $this->_getJoinColumnMapping($manyToOneElement->{'join-column'});
} else if (isset($manyToOneElement->{'join-columns'})) {
foreach ($manyToOneElement->{'join-columns'}->{'join-column'} as $joinColumnElement) {
$joinColumns[] = $this->_getJoinColumnMapping($joinColumnElement);
}
} else {
throw MappingException::invalidMapping($mapping['fieldName']);
}
$mapping['joinColumns'] = $joinColumns;
if (isset($manyToOneElement->cascade)) {
$mapping['cascade'] = $this->_getCascadeMappings($manyToOneElement->cascade);
}
$metadata->mapManyToOne($mapping);
}
}
// Evaluate <many-to-many ...> mappings
if (isset($xmlRoot->{'many-to-many'})) {
foreach ($xmlRoot->{'many-to-many'} as $manyToManyElement) {
$mapping = array(
'fieldName' => (string)$manyToManyElement['field'],
'targetEntity' => (string)$manyToManyElement['targetEntity']
);
if (isset($manyToManyElement['mappedBy'])) {
$mapping['mappedBy'] = (string)$manyToManyElement['mappedBy'];
} else if (isset($manyToManyElement->{'join-table'})) {
$joinTableElement = $manyToManyElement->{'join-table'};
$joinTable = array(
'name' => (string)$joinTableElement['name']
);
if (isset($joinTableElement['schema'])) {
$joinTable['schema'] = (string)$joinTableElement['schema'];
}
foreach ($joinTableElement->{'join-columns'}->{'join-column'} as $joinColumnElement) {
$joinTable['joinColumns'][] = $this->_getJoinColumnMapping($joinColumnElement);
}
foreach ($joinTableElement->{'inverse-join-columns'}->{'join-column'} as $joinColumnElement) {
$joinTable['inverseJoinColumns'][] = $this->_getJoinColumnMapping($joinColumnElement);
}
$mapping['joinTable'] = $joinTable;
} else {
throw MappingException::invalidMapping($mapping['fieldName']);
}
if (isset($manyToManyElement->cascade)) {
$mapping['cascade'] = $this->_getCascadeMappings($manyToManyElement->cascade);
}
$metadata->mapManyToMany($mapping);
}
}
} else if ($xmlRoot->getName() == 'mapped-superclass') {
throw MappingException::notImplemented('Mapped superclasses are not yet supported.');
}
}
/**
* Loads a mapping file with the given name and returns a map
* from class/entity names to their corresponding SimpleXMLElement nodes.
*
* @param string $file The mapping file to load.
* @return array
*/
protected function _loadMappingFile($file)
{
$result = array();
$xmlElement = simplexml_load_file($file);
if (isset($xmlElement->entity)) {
foreach ($xmlElement->entity as $entityElement) {
$entityName = (string)$entityElement['name'];
$result[$entityName] = $entityElement;
}
} else if (isset($xmlElement->{'mapped-superclass'})) {
foreach ($xmlElement->{'mapped-superclass'} as $mapperSuperClass) {
$className = (string)$mappedSuperClass['name'];
$result[$className] = $mappedSuperClass;
}
}
return $result;
}
/**
* Constructs a joinColumn mapping array based on the information
* found in the given SimpleXMLElement.
*
* @param $joinColumnElement The XML element.
* @return array The mapping array.
*/
private function _getJoinColumnMapping(\SimpleXMLElement $joinColumnElement)
{
$joinColumn = array(
'name' => (string)$joinColumnElement['name'],
'referencedColumnName' => (string)$joinColumnElement['referencedColumnName']
);
if (isset($joinColumnElement['unique'])) {
$joinColumn['unique'] = (bool)$joinColumnElement['unique'];
}
if (isset($joinColumnElement['nullable'])) {
$joinColumn['nullable'] = (bool)$joinColumnElement['nullable'];
}
if (isset($joinColumnElement['onDelete'])) {
$joinColumn['onDelete'] = (string)$joinColumnElement['onDelete'];
}
if (isset($joinColumnElement['onUpdate'])) {
$joinColumn['onUpdate'] = (string)$joinColumnElement['onUpdate'];
}
return $joinColumn;
}
/**
* Gathers a list of cascade options found in the given cascade element.
*
* @param $cascadeElement The cascade element.
* @return array The list of cascade options.
*/
private function _getCascadeMappings($cascadeElement)
{
$cascades = array();
if (isset($cascadeElement->{'cascade-save'})) {
$cascades[] = 'save';
}
if (isset($cascadeElement->{'cascade-delete'})) {
$cascades[] = 'delete';
}
if (isset($cascadeElement->{'cascade-merge'})) {
$cascades[] = 'merge';
}
if (isset($cascadeElement->{'cascade-refresh'})) {
$cascades[] = 'refresh';
}
return $cascades;
}
}