@Override
public void changeAddress(OrderModel order, AddressModel address) {
em.getTransaction().begin();
order.setDeliveryAddress(address);
em.merge(order);
em.getTransaction().commit();
}
@Override
public void save(OrderModel order, Long addressId) throws Exception {
AddressModel address = em.getReference(AddressModel.class, addressId);
Assert.assertNotNull(address.getAddress());
Assert.assertNotNull(address.getPhone());
order.setDeliveryAddress(address);
em.getTransaction().begin();
em.persist(order);
em.getTransaction().commit();
}