public function addResource(ICompanyServiceResource $resource)
{
$new_order = 0;
$resources = $this->getResources();
if (count($resources) > 0) {
$last_one = end($resources);
$new_order = $last_one->getOrder() + 1;
}
$resource->setOrder($new_order);
AssociationFactory::getInstance()->getOne2ManyAssociation($this, 'Resources')->add($resource);
}
