如果实体是全新/临时的，如何将实体发送到全局操作输入参数？

Question

我相信这个问题与此处链接的问题不同：

CRM do not support direct update of Entity Reference properties, Use Navigation properties instead

我有一个全局操作，它接受 ClubOfficer 实体作为必需的输入参数。这是我的代码生成的有效负载示例：

{
    "ClubOfficer":{
        "_ti_club_officer_code_value":"6efab90f-7d2b-e811-a957-000d3a34a108",
        "ti_club_id":{
            "accountid":"cbf646cb-a232-e811-a959-000d3a34a0aa"
        },
        "ti_member":{
            "contactid":"e318472c-c732-e811-a959-000d3a34ae50"
        },
        "ti_start_date":"2018-07-01T00:00:00Z",
        "ti_end_date":"2018-12-31T23:59:59Z"
    },
    "Term":"Current"
}

但是，在调用该操作之前，它会因错误而失败：

{
    "error": {
        "code": "0x0",
        "message": "CRM do not support direct update of Entity Reference properties, Use Navigation properties instead.",
        "innererror": {
            "message": "CRM do not support direct update of Entity Reference properties, Use Navigation properties instead.",
            "type": "Microsoft.Crm.CrmHttpException",
            "stacktrace": "   at Microsoft.Crm.Extensibility.OData.TypeConverters.EntityReferenceAttributeTypeConverter.ConvertToCrmTypeInternal(Guid edmTypeValue)\r\n   at Microsoft.Crm.Extensibility.OData.TypeConverters.EdmTypeConverterBase`2.ConvertToCrmType(Object edmTypeValue)\r\n   at Microsoft.Crm.Extensibility.OData.TypeConverters.EdmEntityTypeConverter.SetStructuralPropertyToXrmEntity(Entity entity, EntityMetadata entityMetadata, String crmAttributeName, IEdmProperty edmProperty, Object propertyValue)\r\n   at Microsoft.Crm.Extensibility.OData.TypeConverters.EdmEntityTypeConverter.ConvertToCrmTypeInternal(EdmEntityObject edmTypeValue)\r\n   at Microsoft.Crm.Extensibility.OData.TypeConverters.EdmTypeConverterBase`2.ConvertToCrmType(Object edmTypeValue)\r\n   at Microsoft.Crm.Extensibility.ODataV4.Converters.TypeConverters.OnDemandEdmEntityTypeConverter.ConvertToCrmTypeInternal(EdmEntityObject edmTypeValue)\r\n   at Microsoft.Crm.Extensibility.OData.TypeConverters.EdmTypeConverterBase`2.ConvertToCrmType(Object edmTypeValue)\r\n   at Microsoft.Crm.Extensibility.OData.RequestResponseConverter.AddSDKRequestParameterFromEdmOperationParameter(IEdmModel edmModel, IEdmOperation edmOperation, ParameterCollection parameterCollection, KeyValuePair`2 parameter, Tuple`2 messagePair)\r\n   at Microsoft.Crm.Extensibility.OData.RequestResponseConverter.GetRequestParamsFromOperationRequest(IEdmModel edmModel, IEdmOperation edmOperation, Dictionary`2 parameters, Dictionary`2 boundParameters, Tuple`2 messagePair, Dictionary`2 offlineData)\r\n   at Microsoft.Crm.Extensibility.OData.CrmODataServiceDataProvider.ExecuteOperation(CrmODataExecutionContext context, EdmOperation edmOperation, Dictionary`2 parameters, Dictionary`2 boundParameters)\r\n   at Microsoft.Crm.Extensibility.OData.ActionController.ProcessOperationRequest(String operationName, Dictionary`2 operationParameters, EntityReference entityReference, String boundEntityName, String boundEntityType)\r\n   at Microsoft.Crm.Extensibility.OData.ActionController.<>c__DisplayClass9_0.<PostUnboundAction>b__0()\r\n   at Microsoft.PowerApps.CoreFramework.ActivityLoggerExtensions.Execute[TResult](ILogger logger, EventId eventId, ActivityType activityType, Func`1 func, IEnumerable`1 additionalCustomProperties)\r\n   at Microsoft.Xrm.Telemetry.XrmTelemetryExtensions.Execute[TResult](ILogger logger, XrmTelemetryActivityType activityType, Func`1 func)\r\n   at lambda_method(Closure , Object , Object[] )\r\n   at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ActionExecutor.<>c__DisplayClass10.<GetExecutor>b__9(Object instance, Object[] methodParameters)\r\n   at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ExecuteAsync(HttpControllerContext controllerContext, IDictionary`2 arguments, CancellationToken cancellationToken)\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at System.Web.Http.Controllers.ApiControllerActionInvoker.<InvokeActionAsyncCore>d__0.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at System.Web.Http.Controllers.ActionFilterResult.<ExecuteAsync>d__2.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at System.Web.Http.Dispatcher.HttpControllerDispatcher.<SendAsync>d__1.MoveNext()"
        }
    }
}

ClubOfficer 不是现有实体，但我希望 Action 将其视为 ClubOfficer 临时实体，以便我可以利用实体​​属性的“类型安全”。那可能吗？还是我必须将 ClubOfficer 作为字符串参数传递，然后对 JSON 字符串进行操作？这个错误在抱怨什么，我该如何解决？

Answer 1

很遗憾，这是不可能的。您没有将整个实体传递给操作，您只是传递实体引用，它只是实体的名称及其 ID。所以无论如何你都不能传递额外的值。

执行此操作的正确方法是为每个输入创建额外的输入参数。这样它们将是强类型的。另一种选择是传递您使用自定义活动解析的 JSON 字符串有效负载。

希望有帮助！