vector<Oferta> service::filterByDestination(const string& dest)
{

	vector<Oferta> filtr;
	vector<Oferta> offers = this->getAll();

	std::copy_if(offers.begin(), offers.end(), back_inserter(filtr), [&dest](const Oferta& a) { return a.getDestination()==dest; });

	return filtr;
}