setParent method

@override bool setParent(String name, dynamic entity)

Sets or updates a parent relationship named name with the given entity. If parent is uninitialized or updatable, we store a reference. If policies fail, we revert.

Implementation

@override
bool setParent(String name, entity) {
  if (_concept == null) {
    throw ConceptException('Entity concept is not defined.');
  }

  Parent? parent = _concept?.parents.singleWhereCode(name) as Parent?;
  if (parent == null) {
    String msg = '${_concept?.code}.$name is not correct parent entity name.';
    throw UpdateException(msg);
  }

  if (entity != null && getParent(name) == null) {
    var reference = Reference(entity.oid.toString(), entity.concept.code,
        entity.concept.entryConcept.code);
    _parentMap[name] = entity;
    _referenceMap[name] = reference;

    var policyResult = evaluatePolicies();
    if (!policyResult.success) {
      _parentMap.remove(name);
      _referenceMap.remove(name);
      throw PolicyViolationException(policyResult.violations);
    }
    return true;
  } else if (entity != null && parent.update) {
    var reference = Reference(entity.oid.toString(), entity.concept.code,
        entity.concept.entryConcept.code);
    _parentMap[name] = entity;
    _referenceMap[name] = reference;

    var policyResult = evaluatePolicies();
    if (!policyResult.success) {
      _parentMap.remove(name);
      _referenceMap.remove(name);
      throw PolicyViolationException(policyResult.violations);
    }

    var modelPolicyResult = concept.model.evaluateModelPolicies(this);
    if (!modelPolicyResult.success) {
      _parentMap.remove(name);
      _referenceMap.remove(name);
      throw PolicyViolationException(modelPolicyResult.violations);
    }
    return true;
  } else {
    String msg = '${_concept?.code}.${parent.code} is not updatable.';
    throw UpdateException(msg);
  }
}