Custom SearchParameter

[ghost]

So the custom search in HAPI 3.3.0 works great, we are using it for Strings and References. However either I, or HAPI can't seem to process nested Search Parameters. Meaning when you want to search for example in a section of a composition.

So this works: Composition.extension("http://example.com/xxx")

but this creates a really long error message in HAPI: Composition.section.section.extension("http://example.com/yyy")

It actually breaks the DB so much that any subsequent action (PUT, POST, GET, DELETE) results in another error message. Similar to how HAPI 2.4 reacted to searches with References

[jamesagnew]

Interesting.. Would you be able to provide a example SearchParameter resource demonstrating this, as well as a resource that should be matched by it?

[ghost]

Sorry for the late reply...

I did look into it more, and turn's out that I accessed the wrong endpoint, the server was a 2.4 instance.

However when having the following search parameter (another mistake of mine was not adding the .text at the end of the expression): { "resourceType": "SearchParameter", "id": "34", "meta": { "versionId": "1", "lastUpdated": "2017-12-13T10:06:18.947+01:00" }, "title": "note as Annotation", "status": "active", "code": "note", "base": [ "Composition" ], "type": "string", "expression": "Composition.section.section.extension('http://example.com/fhir/AnnotationExample').text", "xpathUsage": "normal" }

And having the following resource: { "fullUrl": "http://localhost:12344/baseDstu3/Composition/32", "resource": { "resourceType": "Composition", "id": "32", "meta": { "versionId": "1", "lastUpdated": "2017-12-13T10:05:51.785+01:00", }, "status": "final", "type": { "coding": [ { "system": "some sytsem", "code": "some code", "display": "some display" } ] }, "date": "2017-05-23T09:15:00+02:00", "title": "Example Composition", "section": [ { "title": "Layer 1", "section": [ { "title": "Layer 2" "extension": [ { "url": "http://example.com/fhir/AnnotationExample", "valueAnnotation": { "text": "note1" } }, { "url": "http://example.com/fhir/AnnotationExample", "valueAnnotation": { "text": "note2" } } ] } ] } ] }

This search returns the resource: http://localhost:12344/baseDstu3/Composition?note

But this search returns nothing: http://localhost:12344/baseDstu3/Composition?note=note1