Check::extractDataFromEntities

protected function extractDataFromEntities(array $entities)
{
	$result = $this->extractDataFromEntitiesInternal($entities);

	$event = new MainEvent('sale', static::EVENT_ON_CHECK_PREPARE_DATA, array($result, static::getType()));
	$event->send();

	if ($event->getResults())
	{
		foreach ($event->getResults() as $eventResult)
		{
			if ($eventResult->getType() !== MainEventResult::ERROR)
			{
				$result = $eventResult->getParameters();
			}
		}
	}

	return $result;
}