WIP

demo/src/main/assets/dynamic-answer-expression.json

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+{
+ "resourceType": "Questionnaire",
+ "id": "client-registration-sample",
+ "language": "en",
+ "status": "active",
+ "date": "2020-11-18T07:24:47.111Z",
+ "subjectType": [
+ "Patient"
+ ],
+ "extension": [
+ {
+ "url": "http:https://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-launchContext",
+ "extension": [
+ {
+ "url": "name",
+ "valueCoding": {
+ "system": "http:https://hl7.org/fhir/uv/sdc/CodeSystem/launchContext",
+ "code": "giga-chada",
+ "display": "Giga Chad"
+ }
+ },
+ {
+ "url": "type",
+ "valueCode": "Patient"
+ }
+ ]
+ },
+ {
+ "url": "http:https://hl7.org/fhir/StructureDefinition/variable",
+ "valueExpression": {
+ "name": "selected-answer",
+ "language": "text/fhirpath",
+ "expression": "%resource.descendants().where(linkId='1').answer.value"
+ }
+ },
+ {
+ "url": "http:https://hl7.org/fhir/StructureDefinition/variable",
+ "valueExpression": {
+ "name": "city",
+ "language": "text/fhirpath",
+ "expression": "iif(%selected-answer.exists(), %selected-answer.code, 'NOTHING')"
+ }
+ }
+ ],
+ "item": [
+ {
+ "extension": [
+ {
+ "url": "http:https://hl7.org/fhir/StructureDefinition/questionnaire-itemControl",
+ "valueCodeableConcept": {
+ "coding": [
+ {
+ "system": "http:https://hl7.org/fhir/questionnaire-item-control",
+ "code": "drop-down",
+ "display": "Drop down"
+ }
+ ],
+ "text": "Drop down"
+ }
+ }
+ ],
+ "linkId": "1",
+ "text": "Select City",
+ "type": "choice",
+ "required": true,
+ "answerOption": [
+ {
+ "valueCoding": {
+ "code": "JAKARTA",
+ "display": "JAKARTA"
+ }
+ },
+ {
+ "valueCoding": {
+ "code": "NAIROBI",
+ "display": "NAIROBI"
+ }
+ }
+ ]
+ },
+ {
+ "extension": [
+ {
+ "url": "http:https://hl7.org/fhir/StructureDefinition/questionnaire-itemControl",
+ "valueCodeableConcept": {
+ "coding": [
+ {
+ "system": "http:https://hl7.org/fhir/questionnaire-item-control",
+ "code": "drop-down",
+ "display": "Drop down"
+ }
+ ],
+ "text": "Drop down"
+ }
+ },
+ {
+ "url": "http:https://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-answerExpression",
+ "valueExpression": {
+ "expression": "Patient?name={{%giga-chad.name.given}}",
+ "language": "application/x-fhir-query"
+ }
+ },
+ {
+ "url": "http:https://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-choiceColumn",
+ "extension": [
+ {
+ "url": "path",
+ "valueString": "id"
+ },
+ {
+ "url": "forDisplay",
+ "valueBoolean": true
+ }
+ ]
+ }
+ ],
+ "linkId": "2",
+ "text": "Find Patient From: X City",
+ "_text": {
+ "extension": [
+ {
+ "url": "http:https://hl7.org/fhir/StructureDefinition/cqf-expression",
+ "valueExpression": {
+ "language": "text/fhirpath",
+ "expression": "'Find Patient From: ' + %city + ' City'"
+ }
+ }
+ ]
+ },
+ "type": "reference",
+ "required": true
+ }
+ ]
+}