0.1.0 - World

FHIR Mapping Language (FML), published by HL7 International / FHIR Infrastructure. This guide is not an authorized publication; it is the continuous build for version 0.1.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/mapping-language-ig/ and changes regularly. See the Directory of published versions

StructureMap:

: http://hl7.org/fhir/uv/mapping-language/StructureMap/FhirPathSourceAsVar :
Standards status: Informative : FhirPathSourceAsVar

Example demonstrating the where clause for filtering source elements with FHIRPath

/// url = 'http://hl7.org/fhir/uv/mapping-language/StructureMap/FhirPathSourceAsVar'
/// name = 'FhirPathSourceAsVar'
/// status = 'active'
/// description = 'Example demonstrating the where clause for filtering source elements with FHIRPath'

uses "http://hl7.org/fhir/StructureDefinition/Patient" as source
uses "http://hl7.org/fhir/StructureDefinition/Patient" as target

group FhirPathSourceAsVar(source src : Patient, target tgt : Patient) {
  // trigger on src, and stash a constant
  src -> ('http://example.org/') as extBase then {
    // use the stashed constant as a variable in a where clause to filter source elements
    src.name as sn -> tgt.name as tn then {
      sn.family as f ->  tn.family = f,  tn.extension as e,  e.url = (extBase & 'family'),  e.value = f "r1";
      sn.suffix as f ->  tn.suffix = f,  tn.extension as e,  e.url = (extBase & 'suffix'),  e.value = f "r1";
    } "r2";
  } "r3";
}