/**
* @param AbstractQuery $query
*
* @throws \LogicException
* @return int
*
*/
public function cleanByQuery(AbstractQuery $query)
{
$numCleaned = 0;
/** @var SourceInterface $source */
foreach ($query->iterate() as list($source)) {
if (!$source instanceof SourceInterface) {
throw new \LogicException(sprintf('Invalid iterator given, encountered %s instead of SourceInterface', is_object($source) ? get_class($source) : gettype($source)));
}
$this->eventDispatcher->dispatch(IoEvents::PRE_CLEAN_SOURCE, new SourceEvent($source));
$this->sourceManager->remove($source);
$this->eventDispatcher->dispatch(IoEvents::POST_CLEAN_SOURCE, new SourceEvent($source));
++$numCleaned;
if ($numCleaned % 50 === 0) {
$this->sourceManager->flush();
$this->sourceManager->clear();
}
}
if ($numCleaned > 0) {
$this->sourceManager->flush();
$this->sourceManager->clear();
}
return $numCleaned;
}
/**
* Executes the query and returns an IterableResult that can be used to incrementally
* iterated over the result.
*
* @param array $params The query parameters.
* @param integer $hydrationMode The hydration mode to use.
* @return \Doctrine\ORM\Internal\Hydration\IterableResult
*/
public function iterate(array $params = array(), $hydrationMode = self::HYDRATE_OBJECT)
{
$this->setHint(self::HINT_INTERNAL_ITERATION, true);
return parent::iterate($params, $hydrationMode);
}
/**
* @param AbstractQuery $query
* @param int $batchSize
*
* @return self
*/
public static function fromQuery(AbstractQuery $query, $batchSize)
{
return new self($query->iterate(), $query->getEntityManager(), $batchSize);
}
