fromJson static method

StudentAnswer? fromJson(dynamic value)

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

Implementation

// ignore: prefer_constructors_over_static_methods
static StudentAnswer? fromJson(dynamic 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 "StudentAnswer[$key]" is missing from JSON.');
        assert(json[key] != null, 'Required key "StudentAnswer[$key]" has a null value in JSON.');
      });
      return true;
    }());

    return StudentAnswer(
      id: mapValueOfType<int>(json, r'id')!,
      mathStudent: MathStudent.fromJson(json[r'math_student'])!,
      question: MathQuestionWithAnswer.fromJson(json[r'question'])!,
      createdAt: mapDateTime(json, r'created_at', r'')!,
      updatedAt: mapDateTime(json, r'updated_at', r'')!,
      answer: mapValueOfType<String>(json, r'answer'),
      image: mapValueOfType<String>(json, r'image'),
      isCorrect: mapValueOfType<bool>(json, r'is_correct'),
      score: mapValueOfType<int>(json, r'score'),
      feedback: mapValueOfType<String>(json, r'feedback'),
    );
  }
  return null;
}