[英]Web API OData function with TimeSpan
I have a Web API OData v4 service that I've created. 我有一个我创建的Web API OData v4服务。 I'm trying to create a bound function that has a TimeSpan parameter having a signature defined in the OData controller similar to the below: 我正在尝试创建一个绑定函数,该函数具有TimeSpan参数,该参数具有在OData控制器中定义的签名,类似于以下内容:
public IQueryable<ProductionRecordDTO> GetProduction(
[FromODataUri]DateTimeOffset startDate,
[FromODataUri]DateTimeOffset endDate,
[FromODataUri]TimeSpan sampleInterval)
It is configured in the OData model builder as below: 它在OData模型构建器中配置如下:
var getProduction = builder.EntitySet<ProductDTO>("Products").EntityType.Collection.Function("GetProduction");
getProduction.Namespace = "ProductsService";
getProduction.ReturnsCollection<ProductionRecordDTO>();
getProduction.Parameter<DateTimeOffset>("StartDate");
getProduction.Parameter<DateTimeOffset>("EndDate");
getProduction.Parameter<TimeSpan>("SampleInterval");
When run, the model is seemingly properly created, the metadata description show that the "SampleInterval" is properly defined as an Edm.Duration type. 运行时,模型看似正确创建,元数据描述显示“SampleInterval”已正确定义为Edm.Duration类型。
When I attempt to call this method however with a URL such as: 当我尝试使用以下URL调用此方法时:
http://dev-pc/odata/Products/ProductsService.GetProduction(StartDate=2014-01-01T00:00:00Z, EndDate=2017-01-01T00:00:00Z, SampleInterval=P1Y)
An ODataException is thrown with the message 'SampleInterval=P1Y' is not in scope. 抛出ODataException,并且消息“SampleInterval = P1Y”不在范围内。 The same is true for every ISO 8601 duration format variation I give it. 对于我给出的每个ISO 8601持续时间格式变化,情况也是如此。
Using: 使用:
Any assistance offered would be greatly appreciated. 任何提供的援助将不胜感激。
I found the cause. 我找到了原因。 Parameters of Edm.Duration apparently cannot be interpreted litterally and need to have a type wrapped around them, eg duration'P1D'
In this case a correct call would have been: Edm.Duration的参数显然不能在文字上解释,并且需要在它们周围缠绕一个类型,例如duration'P1D'
在这种情况下,正确的调用将是:
http://dev-pc/odata/Products/ProductsService.GetProduction(StartDate=2014-01-01T00:00:00Z, EndDate=2017-01-01T00:00:00Z, SampleInterval=duration'P1D')
That said, Microsoft's implementation doesn't seem to accept periodic kinds larger than days. 也就是说,微软的实施似乎并不接受大于天的定期种类。 P1W
, P1M
and P1Y
are all rejected. P1W
, P1M
和P1Y
全部被拒绝。
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