Stream: shorthand
Topic: Constraints
Saul Kravitz (Feb 27 2020 at 19:32):
Can constraints be coded in FSH?
Something that produces a constraint like:
constraint: [
{
"key" : "pd-1",
"severity" : "error",
"human" : "SHALL have contact information or a reference to an Endpoint",
"expression" : "telecom or endpoint",
"xpath" : "exists(f:telecom) or exists(f:endpoint)"
}
]
Drawn from http://hl7.org/fhir/us/core/STU3/StructureDefinition-us-core-practitionerrole.html
Chris Moesel (Feb 27 2020 at 19:56):
That feature has been coded up and is currently in review, so... should be available in the next version of SUSHI!
Chris Moesel (Feb 27 2020 at 20:00):
Basic approach is:
Profile: USCorePractitionerRole Parent: PractitionerRole * obeys pd-1 // ... Invariant: pd-1 Severity: "error" Description: "SHALL have contact information or a reference to an Endpoint" Expression: "telecom or endpoint" XPath: "exists(f:telecom) or exists(f:endpoint)"
Jens Villadsen (Feb 27 2020 at 22:03):
will the fhirpath expression be validated?
Jens Villadsen (Feb 27 2020 at 22:03):
as in: will the syntax of it be validated?
Chris Moesel (Feb 27 2020 at 22:09):
@Jens Villadsen -- we don't currently validate the fhirpath expression. We rely on the IG Publisher to catch it. That said, if the JavaScript fhirpath library supports fhirpath syntax checking, then it would be pretty simple to add that capability.
Last updated: Apr 12 2022 at 19:14 UTC
