Check::setRelatedEntities

public function setRelatedEntities(array $entities)
{
	$this->checkRelatedEntities($entities);

	$this->relatedEntities = $entities;

	foreach ($this->relatedEntities as $type => $entityList)
	{
		foreach ($entityList as $entity)
		{
			if ($entity instanceof Payment)
			{
				$this->fields['SUM'] += $entity->getSum();
				$this->fields['CURRENCY'] = $entity->getField('CURRENCY');
			}
		}
	}
}