/
DoctrineORMQuerySourceIterator.php
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/
DoctrineORMQuerySourceIterator.php
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<?php
/*
* This file is part of the Sonata package.
*
* (c) Thomas Rabaix <thomas.rabaix@sonata-project.org>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Exporter\Source;
use Doctrine\ORM\Query;
use Exporter\Exception\InvalidMethodCallException;
use Symfony\Component\PropertyAccess\Exception\UnexpectedTypeException;
use Symfony\Component\PropertyAccess\PropertyAccess;
use Symfony\Component\PropertyAccess\PropertyPath;
class DoctrineORMQuerySourceIterator implements SourceIteratorInterface
{
/**
* @var \Doctrine\ORM\Query
*/
protected $query;
/**
* @var \Doctrine\ORM\Internal\Hydration\IterableResult
*/
protected $iterator;
protected $propertyPaths;
/**
* @var PropertyAccess
*/
protected $propertyAccessor;
/**
* @var string default DateTime format
*/
protected $dateTimeFormat;
/**
* @param \Doctrine\ORM\Query $query The Doctrine Query
* @param array $fields Fields to export
* @param string $dateTimeFormat
*/
public function __construct(Query $query, array $fields, $dateTimeFormat = 'r')
{
$this->query = clone $query;
$this->query->setParameters($query->getParameters());
foreach ($query->getHints() as $name => $value) {
$this->query->setHint($name, $value);
}
$this->propertyAccessor = PropertyAccess::createPropertyAccessor();
$this->propertyPaths = array();
foreach ($fields as $name => $field) {
if (is_string($name) && is_string($field)) {
$this->propertyPaths[$name] = new PropertyPath($field);
} else {
$this->propertyPaths[$field] = new PropertyPath($field);
}
}
$this->dateTimeFormat = $dateTimeFormat;
}
/**
* {@inheritdoc}
*/
public function current()
{
$current = $this->iterator->current();
$data = array();
foreach ($this->propertyPaths as $name => $propertyPath) {
try {
$data[$name] = $this->getValue($this->propertyAccessor->getValue($current[0], $propertyPath));
} catch (UnexpectedTypeException $e) {
//non existent object in path will be ignored
$data[$name] = null;
}
}
$this->query->getEntityManager()->getUnitOfWork()->detach($current[0]);
return $data;
}
/**
* @param $value
*
* @return null|string
*/
protected function getValue($value)
{
if (is_array($value) || $value instanceof \Traversable) {
$value = null;
} elseif ($value instanceof \DateTime) {
$value = $value->format($this->dateTimeFormat);
} elseif (is_object($value)) {
$value = (string) $value;
}
return $value;
}
/**
* {@inheritdoc}
*/
public function next()
{
$this->iterator->next();
}
/**
* {@inheritdoc}
*/
public function key()
{
return $this->iterator->key();
}
/**
* {@inheritdoc}
*/
public function valid()
{
return $this->iterator->valid();
}
/**
* {@inheritdoc}
*/
public function rewind()
{
if ($this->iterator) {
throw new InvalidMethodCallException('Cannot rewind a Doctrine\ORM\Query');
}
$this->iterator = $this->query->iterate();
$this->iterator->rewind();
}
/**
* @param string $dateTimeFormat
*/
public function setDateTimeFormat($dateTimeFormat)
{
$this->dateTimeFormat = $dateTimeFormat;
}
/**
* @return string
*/
public function getDateTimeFormat()
{
return $this->dateTimeFormat;
}
}