private UnitOfMeasure GetUnitOfMeasure(UnitOfMeasure request)
        {
            var           id    = request?.Id;
            UnitOfMeasure ret   = null;
            var           query = DocQuery.ActiveQuery ?? Execute;

            DocPermissionFactory.SetSelect <UnitOfMeasure>(currentUser, "UnitOfMeasure", request.Select);

            DocEntityUnitOfMeasure entity = null;

            if (id.HasValue)
            {
                entity = DocEntityUnitOfMeasure.Get(id.Value);
            }
            if (null == entity)
            {
                throw new HttpError(HttpStatusCode.NotFound, $"No UnitOfMeasure found for Id {id.Value}");
            }

            if (!DocPermissionFactory.HasPermission(entity, currentUser, DocConstantPermission.VIEW))
            {
                throw new HttpError(HttpStatusCode.Forbidden, "You do not have VIEW permission for this route.");
            }

            ret = entity?.ToDto();
            return(ret);
        }
        public UnitOfMeasure Post(UnitOfMeasureCopy request)
        {
            UnitOfMeasure ret = null;

            using (Execute)
            {
                Execute.Run(ssn =>
                {
                    var entity = DocEntityUnitOfMeasure.Get(request?.Id);
                    if (null == entity)
                    {
                        throw new HttpError(HttpStatusCode.NoContent, "The COPY request did not succeed.");
                    }
                    if (!DocPermissionFactory.HasPermission(entity, currentUser, DocConstantPermission.ADD))
                    {
                        throw new HttpError(HttpStatusCode.Forbidden, "You do not have ADD permission for this route.");
                    }

                    var pIsSI = entity.IsSI;
                    var pName = entity.Name;
                    var pType = entity.Type;
                    var pUnit = entity.Unit;
                    var copy  = new DocEntityUnitOfMeasure(ssn)
                    {
                        Hash   = Guid.NewGuid()
                        , IsSI = pIsSI
                        , Name = pName
                        , Type = pType
                        , Unit = pUnit
                    };

                    copy.SaveChanges(DocConstantPermission.ADD);
                    ret = copy.ToDto();
                });
            }
            return(ret);
        }