fromJson static method

MeasureDto? fromJson(dynamic value)

Returns a new MeasureDto instance and imports its values from value if it's a Map, null otherwise.

Implementation

// ignore: prefer_constructors_over_static_methods
static MeasureDto? fromJson(dynamic value) {
  if (value is MeasureDto) {
    return value;
  }
  if (value is Map) {
    final json = value.cast<String, dynamic>();

    // Ensure that the map contains the required keys.
    // Note 1: the values aren't checked for validity beyond being non-null.
    // Note 2: this code is stripped in release mode!
    assert(() {
      requiredKeys.forEach((key) {
        assert(json.containsKey(key), 'Required key "MeasureDto[$key]" is missing from JSON.');
        assert(json[key] != null, 'Required key "MeasureDto[$key]" has a null value in JSON.');
      });
      return true;
    }());

    return MeasureDto(
      value: json[r'value'] is num ? json[r'value'].toDouble() : null,
      min: json[r'min'] is num ? json[r'min'].toDouble() : null,
      max: json[r'max'] is num ? json[r'max'].toDouble() : null,
      ref: json[r'ref'] is num ? json[r'ref'].toDouble() : null,
      severity: mapValueOfType<int>(json, r'severity'),
      severityCode: mapValueOfType<String>(json, r'severityCode'),
      evolution: mapValueOfType<int>(json, r'evolution'),
      unit: mapValueOfType<String>(json, r'unit'),
      unitCodes: CodeStubDto.listFromJson(json[r'unitCodes'])?.toSet() ?? const {},
      comment: mapValueOfType<String>(json, r'comment'),
      comparator: mapValueOfType<String>(json, r'comparator'),
    );
  }
  return null;
}