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delete operation removes element from list (#4782) 

* delete operation removes element from list

* changelog
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JasonRoberts-smile 2023-04-27 20:01:28 -04:00 committed by GitHub
parent 78b3b148ba
commit ae1e7400dd
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3 changed files with 75 additions and 3 deletions
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5
hapi-fhir-docs/src/main/resources/ca/uhn/hapi/fhir/changelog/6_6_0/4782-fhir-patch-delete.yaml Normal file
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@ -0,0 +1,5 @@
---
type: fix
issue: 4782
title: "Previously, a FHIRPath patch delete operation where the path resolved to an element in a collection, the element
was not always being removed from the collection. This has been fixed."

42
hapi-fhir-jpaserver-test-r4/src/test/java/ca/uhn/fhir/jpa/patch/FhirPatchApplyR4Test.java
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@ -8,7 +8,10 @@ import org.hl7.fhir.instance.model.api.IBaseResource;
import org.hl7.fhir.instance.model.api.IPrimitiveType;
import org.hl7.fhir.r4.model.BooleanType;
import org.hl7.fhir.r4.model.CodeType;
import org.hl7.fhir.r4.model.CodeableConcept;
import org.hl7.fhir.r4.model.Coding;
import org.hl7.fhir.r4.model.Extension;
import org.hl7.fhir.r4.model.HumanName;
import org.hl7.fhir.r4.model.Identifier;
import org.hl7.fhir.r4.model.IntegerType;
import org.hl7.fhir.r4.model.Parameters;
@ -175,10 +178,49 @@ public class FhirPatchApplyR4Test {
svc.apply(patient, patch);
assertEquals(1, patient.getIdentifier().size());
assertEquals("{\"resourceType\":\"Patient\",\"identifier\":[{\"system\":\"sys\",\"value\":\"val\"}],\"active\":true}", ourCtx.newJsonParser().encodeResourceToString(patient));
}
@Test
public void testDeleteExtensionFromListByFilter() {
FhirPatch svc = new FhirPatch(ourCtx);
Patient patient = new Patient();
patient.setActive(true);
patient.addExtension().setUrl("url1")
.addExtension(new Extension().setUrl("text").setValue(new StringType("first text")))
.addExtension(new Extension().setUrl("code").setValue(new CodeableConcept().addCoding(new Coding("sys", "123", "Abc"))));
patient.addExtension().setUrl("url2")
.addExtension(new Extension().setUrl("code").setValue(new CodeableConcept().addCoding(new Coding("sys", "234", "Def"))))
.addExtension(new Extension().setUrl("detail").setValue(new IntegerType(5)));
patient.addExtension().setUrl("url3")
.addExtension(new Extension().setUrl("text").setValue(new StringType("third text")))
.addExtension(new Extension().setUrl("code").setValue(new CodeableConcept().addCoding(new Coding("sys", "345", "Ghi"))))
.addExtension(new Extension().setUrl("detail").setValue(new IntegerType(12)));
Parameters patch = new Parameters();
Parameters.ParametersParameterComponent operation = patch.addParameter();
operation.setName("operation");
operation
.addPart()
.setName("type")
.setValue(new CodeType("delete"));
operation
.addPart()
.setName("path")
.setValue(new StringType("Patient.extension.where(url = 'url2')"));
svc.apply(patient, patch);
assertEquals(2, patient.getExtension().size());
assertEquals("{\"resourceType\":\"Patient\",\"extension\":[{\"url\":\"url1\",\"extension\":[{\"url\":\"text\",\"valueString\":\"first text\"},{\"url\":\"code\",\"valueCodeableConcept\":{\"coding\":[{\"system\":\"sys\",\"code\":\"123\",\"display\":\"Abc\"}]}}]},{\"url\":\"url3\",\"extension\":[{\"url\":\"text\",\"valueString\":\"third text\"},{\"url\":\"code\",\"valueCodeableConcept\":{\"coding\":[{\"system\":\"sys\",\"code\":\"345\",\"display\":\"Ghi\"}]}},{\"url\":\"detail\",\"valueInteger\":12}]}],\"active\":true}", ourCtx.newJsonParser().encodeResourceToString(patient));
}
/**
* See #1999
*/

29
hapi-fhir-storage/src/main/java/ca/uhn/fhir/jpa/patch/FhirPatch.java
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@ -96,9 +96,23 @@ public class FhirPatch {
Integer removeIndex = null;
Integer insertIndex = null;
if ("delete".equals(type)) {
if (path.endsWith(")")) {
// This is probably a filter, so we're probably dealing with a list
int filterArgsIndex = path.lastIndexOf('('); // Let's hope there aren't nested parentheses
int lastDotIndex = path.lastIndexOf('.', filterArgsIndex); // There might be a dot inside the parentheses, so look to the left of that
int secondLastDotIndex = path.lastIndexOf('.', lastDotIndex-1);
containingPath = path.substring(0, secondLastDotIndex);
elementName = path.substring(secondLastDotIndex + 1, lastDotIndex);
} else if (path.endsWith("]")) {
// This is almost definitely a list
int openBracketIndex = path.lastIndexOf('[');
int lastDotIndex = path.lastIndexOf('.', openBracketIndex);
containingPath = path.substring(0, lastDotIndex);
elementName = path.substring(lastDotIndex + 1, openBracketIndex);
} else {
doDelete(theResource, path);
return;
continue;
}
} else if ("add".equals(type)) {
@ -180,6 +194,17 @@ public class FhirPatch {
childDef.getMutator().addValue(next, nextNewValue);
}
continue;
} else if ("delete".equals(type)) {
List<IBase> existingValues = new ArrayList<>(childDef.getAccessor().getValues(next));
List<IBase> elementsToRemove = myContext.newFhirPath().evaluate(theResource, path, IBase.class);
existingValues.removeAll(elementsToRemove);
childDef.getMutator().setValue(next, null);
for (IBase nextNewValue : existingValues) {
childDef.getMutator().addValue(next, nextNewValue);
}
continue;
}