FHIR Chat · Has the FhirPath implementation changed?

Stream: dotnet

Topic: Has the FhirPath implementation changed?

Richard Kavanagh (Sep 12 2017 at 22:58):

I have just updated my Nuget package for a project I have been working on for a while. The current packages are :

Within the code I evaluate FhirPath expression (using code directly from https://github.com/brianpos/FhirPathTester.). The code no longer builds though I am not sure why. Anyone point me in the right direction.

        FhirPathCompiler _compiler = new FhirPathCompiler();
        CompiledExpression xps = _compiler.Compile("Bundle.repeat(children())");
        var inputNav = new PocoNavigator(_reource);
        var prepopulatedValues = xps(inputNav, inputNav);

The error encountered is : Argument 2: cannot convert from 'Hl7.Fhir.ElementModel.PocoNavigator' to 'Hl7.FhirPath.EvaluationContext' on the last line of code.

thanks

Brian Postlethwaite (Sep 13 2017 at 00:10):

I'll have to update it to the newest versions

Brian Postlethwaite (Sep 13 2017 at 00:11):

Some of the namespaces slightly changed, and the compile parameters changed (to help fix a static)

Ewout Kramer (Sep 13 2017 at 07:53):

Yes, it has changed. Changing

var prepopulatedValues = xps(inputNav, inputNav);

into

var prepopulatedValues = xps(inputNav, new EvaluationContext(inputNav))

would fix it. I thought I had [Obsolete] on everything, but I'll check.

Brian Postlethwaite (Sep 14 2017 at 03:55):

I think it does.

Last updated: Apr 12 2022 at 19:14 UTC

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