public IEnumerable <IOrganizationStateDto> Get(string parentId = null, string sort = null, string fields = null, int firstResult = 0, int maxResults = int.MaxValue, string filter = null) { try { var parentIdObj = parentId == null ? null : parentId; IEnumerable <IOrganizationState> states = null; if (!String.IsNullOrWhiteSpace(filter)) { if (parentIdObj == null) { if (IsOnlyIdReturned(fields)) { var ids = _organizationTreeApplicationService.GetRootIds(CriterionDto.ToSubclass(JObject.Parse(filter).ToObject <CriterionDto>(), new ApiControllerTypeConverter(), new PropertyTypeResolver()) , OrganizationsControllerUtils.GetQueryOrders(sort, QueryOrderSeparator), firstResult, maxResults); states = OrganizationsControllerUtils.ToOrganizationStateCollection(ids); } else { states = _organizationTreeApplicationService.GetRoots(CriterionDto.ToSubclass(JObject.Parse(filter).ToObject <CriterionDto>(), new ApiControllerTypeConverter(), new PropertyTypeResolver()) , OrganizationsControllerUtils.GetQueryOrders(sort, QueryOrderSeparator), firstResult, maxResults); } } else { if (IsOnlyIdReturned(fields)) { var ids = _organizationTreeApplicationService.GetChildIds(parentIdObj, CriterionDto.ToSubclass(JObject.Parse(filter).ToObject <CriterionDto>(), new ApiControllerTypeConverter(), new PropertyTypeResolver()) , OrganizationsControllerUtils.GetQueryOrders(sort, QueryOrderSeparator), firstResult, maxResults); states = OrganizationsControllerUtils.ToOrganizationStateCollection(ids); } else { states = _organizationTreeApplicationService.GetChildren(parentIdObj, CriterionDto.ToSubclass(JObject.Parse(filter).ToObject <CriterionDto>(), new ApiControllerTypeConverter(), new PropertyTypeResolver()) , OrganizationsControllerUtils.GetQueryOrders(sort, QueryOrderSeparator), firstResult, maxResults); } } } else { if (parentIdObj == null) { if (IsOnlyIdReturned(fields)) { var ids = _organizationTreeApplicationService.GetRootIds(OrganizationsControllerUtils.GetQueryFilterDictionary(this.Request.GetQueryNameValuePairs()) , OrganizationsControllerUtils.GetQueryOrders(sort, QueryOrderSeparator), firstResult, maxResults); states = OrganizationsControllerUtils.ToOrganizationStateCollection(ids); } else { states = _organizationTreeApplicationService.GetRoots(OrganizationsControllerUtils.GetQueryFilterDictionary(this.Request.GetQueryNameValuePairs()) , OrganizationsControllerUtils.GetQueryOrders(sort, QueryOrderSeparator), firstResult, maxResults); } } else { if (IsOnlyIdReturned(fields)) { var ids = _organizationTreeApplicationService.GetChildIds(parentIdObj, OrganizationsControllerUtils.GetQueryFilterDictionary(this.Request.GetQueryNameValuePairs()) , OrganizationsControllerUtils.GetQueryOrders(sort, QueryOrderSeparator), firstResult, maxResults); states = OrganizationsControllerUtils.ToOrganizationStateCollection(ids); } else { states = _organizationTreeApplicationService.GetChildren(parentIdObj, OrganizationsControllerUtils.GetQueryFilterDictionary(this.Request.GetQueryNameValuePairs()) , OrganizationsControllerUtils.GetQueryOrders(sort, QueryOrderSeparator), firstResult, maxResults); } } } var stateDtos = new List <IOrganizationStateDto>(); foreach (var s in states) { var dto = s is OrganizationStateDtoWrapper ? (OrganizationStateDtoWrapper)s : new OrganizationStateDtoWrapper((OrganizationState)s); if (String.IsNullOrWhiteSpace(fields)) { dto.AllFieldsReturned = true; } else { dto.ReturnedFieldsString = fields; } stateDtos.Add(dto); } return(stateDtos); } catch (Exception ex) { var response = OrganizationsControllerUtils.GetErrorHttpResponseMessage(ex); throw new HttpResponseException(response); } }