private void AddStaffAddress(StaffAddressDto staffAddressDto, Staff staff)
{
var addressType = _mappingHelper.MapLookupField <StaffAddressType> (staffAddressDto.StaffAddressType);
var countyAreaLookup = _mappingHelper.MapLookupField <CountyArea> (staffAddressDto.CountyArea);
var stateProvinceLookup = _mappingHelper.MapLookupField <StateProvince> (staffAddressDto.StateProvince);
var staffAddress =
new StaffAddressBuilder().WithStaffAddressType(addressType).WithAddress(
new AddressBuilder().WithFirstStreetAddress(staffAddressDto.FirstStreetAddress).WithSecondStreetAddress(
staffAddressDto.SecondStreetAddress).WithCityName(staffAddressDto.CityName).WithCountyArea(countyAreaLookup)
.WithStateProvince(stateProvinceLookup).WithPostalCode(new PostalCode(staffAddressDto.PostalCode)));
staff.AddAddress(staffAddress);
}