static MachineDtoMapper()
{
Mapper.CreateMap <Machine, MachineDto>()
.ForMember(d => d.Version, x => x.MapFrom(y => RowVersionHelper.ConvertToString(y.RowVersion)));
Mapper.CreateMap <Credentials, CredentialsDto>();
}
public void Can_convert_between_string_and_byte_array()
{
var bytes = new byte[] { 255, 24 };
var str = RowVersionHelper.ConvertToString(bytes);
var resultBytes = RowVersionHelper.ConvertToBytes(str);
var resultStr = RowVersionHelper.ConvertToString(resultBytes);
Assert.AreEqual(bytes, resultBytes);
Assert.AreEqual(str, resultStr);
}
// PUT /api/machines/5
public HttpResponseMessage Put(int id, [FromBody] MachineDto machineDto)
{
//zero is passed back if the top 'null' option is selected inthe web form drop-down
// if (machineDto.CredentialsId == 0) machineDto.CredentialsId = null;
//validate
if (!ModelState.IsValid)
{
_logger.Error("MachinesController.Put failed: model state not valid");
throw new HttpResponseException(new HttpResponseMessage
{
StatusCode = HttpStatusCode.BadRequest,
Content = new StringContent("Model state not valid")
});
}
var machine = _unitOfWork.Machines.GetById(id);
//check a machine exists
if (machine == null)
{
throw new HttpResponseException(new HttpResponseMessage
{
StatusCode = HttpStatusCode.NotFound,
Content = new StringContent("Machine not found")
});
}
//all's well - so update the machine
//but first, validate that the data hasn't been changed by another user since we loaded it
var machineRV = RowVersionHelper.ConvertToString(machine.RowVersion);
if (machineRV != machineDto.Version)
{
_logger.Error("Concurrency exception - mismatched rowversions : " + machineRV + " | " + machineDto.Version);
throw new HttpResponseException(new HttpResponseMessage
{
StatusCode = HttpStatusCode.BadRequest,
Content = new StringContent("Concurrency exception")
});
}
machine.Update(machineDto);
_unitOfWork.Commit();
var response = Request.CreateResponse(HttpStatusCode.NoContent);
//pass the updated rowversion info back in an eTag
var version = RowVersionHelper.ConvertToString(machine.RowVersion);
response.Headers.ETag = new EntityTagHeaderValue((QuotedString)version, true);
return(response);
}
