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doctrine2/lib/Doctrine/ORM/Internal/Hydration/SimpleObjectHydrator.php
2013-06-12 10:30:51 -04:00

190 lines
6.5 KiB
PHP

<?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 MIT license. For more information, see
* <http://www.doctrine-project.org>.
*/
namespace Doctrine\ORM\Internal\Hydration;
use PDO;
use Doctrine\DBAL\Types\Type;
use Doctrine\ORM\Mapping\ClassMetadata;
use Doctrine\ORM\Query;
class SimpleObjectHydrator extends AbstractHydrator
{
/**
* @var ClassMetadata
*/
private $class;
/**
* @var array
*/
private $declaringClasses = array();
/**
* {@inheritdoc}
*/
protected function hydrateAllData()
{
$result = array();
$cache = array();
while ($row = $this->_stmt->fetch(PDO::FETCH_ASSOC)) {
$this->hydrateRowData($row, $cache, $result);
}
$this->_em->getUnitOfWork()->triggerEagerLoads();
return $result;
}
/**
* {@inheritdoc}
*/
protected function prepare()
{
if (count($this->_rsm->aliasMap) !== 1) {
throw new \RuntimeException("Cannot use SimpleObjectHydrator with a ResultSetMapping that contains more than one object result.");
}
if ($this->_rsm->scalarMappings) {
throw new \RuntimeException("Cannot use SimpleObjectHydrator with a ResultSetMapping that contains scalar mappings.");
}
$this->class = $this->_em->getClassMetadata(reset($this->_rsm->aliasMap));
// We only need to add declaring classes if we have inheritance.
if ($this->class->inheritanceType === ClassMetadata::INHERITANCE_TYPE_NONE) {
return;
}
foreach ($this->_rsm->declaringClasses as $column => $class) {
$this->declaringClasses[$column] = $this->_em->getClassMetadata($class);
}
}
/**
* {@inheritdoc}
*/
protected function hydrateRowData(array $sqlResult, array &$cache, array &$result)
{
$entityName = $this->class->name;
$data = array();
// We need to find the correct entity class name if we have inheritance in resultset
if ($this->class->inheritanceType !== ClassMetadata::INHERITANCE_TYPE_NONE) {
$discrColumnName = $this->_platform->getSQLResultCasing($this->class->discriminatorColumn['name']);
if ( ! isset($sqlResult[$discrColumnName])) {
throw HydrationException::missingDiscriminatorColumn($entityName, $discrColumnName, key($this->_rsm->aliasMap));
}
if ($sqlResult[$discrColumnName] === '') {
throw HydrationException::emptyDiscriminatorValue(key($this->_rsm->aliasMap));
}
$entityName = $this->class->discriminatorMap[$sqlResult[$discrColumnName]];
unset($sqlResult[$discrColumnName]);
}
foreach ($sqlResult as $column => $value) {
// Hydrate column information if not yet present
if ( ! isset($cache[$column])) {
if (($info = $this->hydrateColumnInfo($entityName, $column)) === null) {
continue;
}
$cache[$column] = $info;
}
// Convert field to a valid PHP value
if (isset($cache[$column]['type'])) {
$value = Type::getType($cache[$column]['type'])->convertToPHPValue($value, $this->_platform);
}
// Prevent overwrite in case of inherit classes using same property name (See AbstractHydrator)
if (isset($cache[$column]) && ( ! isset($data[$cache[$column]['name']]) || $value !== null)) {
$data[$cache[$column]['name']] = $value;
}
}
if (isset($this->_hints[Query::HINT_REFRESH_ENTITY])) {
$this->registerManaged($this->class, $this->_hints[Query::HINT_REFRESH_ENTITY], $data);
}
$uow = $this->_em->getUnitOfWork();
$entity = $uow->createEntity($entityName, $data, $this->_hints);
$result[] = $entity;
}
/**
* Retrieve column information form ResultSetMapping.
*
* @param string $entityName
* @param string $column
*
* @return array
*/
protected function hydrateColumnInfo($entityName, $column)
{
if (isset($this->_rsm->fieldMappings[$column])) {
$name = $this->_rsm->fieldMappings[$column];
$class = isset($this->declaringClasses[$column])
? $this->declaringClasses[$column]
: $this->class;
// If class is not part of the inheritance, ignore
if ( ! ($class->name === $entityName || is_subclass_of($entityName, $class->name))) {
return null;
}
return array(
'name' => $name,
'type' => $class->fieldMappings[$name]['type']
);
}
if (isset($this->_rsm->relationMap[$column])) {
$class = isset($this->_rsm->relationMap[$column])
? $this->_rsm->relationMap[$column]
: $this->class;
// If class is not self referencing, ignore
if ( ! ($class === $entityName || is_subclass_of($entityName, $class))) {
return null;
}
// TODO: Decide what to do with associations. It seems original code is incomplete.
// One solution is to load the association, but it might require extra efforts.
return array('name' => $column);
}
if (isset($this->_rsm->metaMappings[$column])) {
return array(
'name' => $this->_rsm->metaMappings[$column],
'type' => (isset($this->_rsm->typeMappings[$column]) ? $this->_rsm->typeMappings[$column] : null)
);
}
return null;
}
}