FHIR Mapping Language (FML)
0.1.0 - STU 1 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: StructArrayToProp

Official URL: http://hl7.org/fhir/uv/mapping-language/StructureMap/StructArrayToProp Version: 0.1.0
Standards status: Informative Computable Name: StructArrayToProp
Other Identifiers: OID:2.16.840.1.113883.4.642.40.89.43.31

Example demonstrating extracting a single value from an array into a scalar property

Language: en

/// url = 'http://hl7.org/fhir/uv/mapping-language/StructureMap/StructArrayToProp'
/// version = '0.1.0'
/// name = 'StructArrayToProp'
/// status = 'active'
/// description = 'Example demonstrating extracting a single value from an array into a scalar property'

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

group StructArrayToProp(source src : Patient, target tgt : Patient) {
  // take the first name's family and put it into the scalar id
  src.name first as v then {
    v.family as f -> tgt.id = f "r1";
  } "r2";
}