HAPI-1942: Invalid _has parameter syntax

[Brian Walsh]

This query works on Google's FHIR service:

Patient?gender=female&_has:Condition:body-site.text=Kidney

But fails on HAPI 7.4.0 
HAPI-1942: Invalid _has parameter syntax: :Condition:body-site.text

Might be similar to:

https://github.com/hapifhir/hapi-fhir-jpaserver-starter/issues/756

[James Agnew]

Hi Brian,

This is not a valid _has query, I don't actually understand what the Google server would be doing with it. Per the specs, the _has syntax has 3 colons. E.g. the following example from the spec:

GET [base]/Patient?_has:Observation:patient:code=1234-5

Presumably you meant to do:

Patient?gender=female&_has:Condition:subject:body-site.text=Kidney

Cheers,

James

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[Brian Walsh]

Wow.  Thanks so much for the quick response.   Much appreciated!

I've corrected the query and gotten further.

Patient?gender=female&_has:Condition:subject:body-site=64033007
Returns the expected data

However,
Patient?gender=female&_has:Condition:subject:body-site:text=Kidney
Returns HAPI-1209: Unknown parameter name: Condition:body-site:text

While ,
Condition?body-site:text=Kidney
Returns the expected data

[James Agnew]

Ah interesting. I don't actually think the :text modifier is currently supported as a part of a _has query in HAPI FHIR.

To work around this, you could create a custom search parameter of type "string" which indexes the path "Condition.bodySite.text" and reference it from your _has expression. That's a bit clunky but it would work.

Certainly a bug report would be appreciated, although no guarantees on how quickly it would be addressed, this would be tricky to implement.

Cheers,

James

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[Brian Walsh]

Bug created. Thanks again.