fromJson static method

AchievementSchema? fromJson(dynamic value)

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

Implementation

// ignore: prefer_constructors_over_static_methods
static AchievementSchema? 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(() {
      assert(json.containsKey(r'name'),
          'Required key "AchievementSchema[name]" is missing from JSON.');
      assert(json[r'name'] != null,
          'Required key "AchievementSchema[name]" has a null value in JSON.');
      assert(json.containsKey(r'code'),
          'Required key "AchievementSchema[code]" is missing from JSON.');
      assert(json[r'code'] != null,
          'Required key "AchievementSchema[code]" has a null value in JSON.');
      assert(json.containsKey(r'description'),
          'Required key "AchievementSchema[description]" is missing from JSON.');
      assert(json[r'description'] != null,
          'Required key "AchievementSchema[description]" has a null value in JSON.');
      assert(json.containsKey(r'points'),
          'Required key "AchievementSchema[points]" is missing from JSON.');
      assert(json[r'points'] != null,
          'Required key "AchievementSchema[points]" has a null value in JSON.');
      assert(json.containsKey(r'objectives'),
          'Required key "AchievementSchema[objectives]" is missing from JSON.');
      assert(json[r'objectives'] != null,
          'Required key "AchievementSchema[objectives]" has a null value in JSON.');
      assert(json.containsKey(r'rewards'),
          'Required key "AchievementSchema[rewards]" is missing from JSON.');
      assert(json[r'rewards'] != null,
          'Required key "AchievementSchema[rewards]" has a null value in JSON.');
      return true;
    }());

    return AchievementSchema(
      name: mapValueOfType<String>(json, r'name')!,
      code: mapValueOfType<String>(json, r'code')!,
      description: mapValueOfType<String>(json, r'description')!,
      points: mapValueOfType<int>(json, r'points')!,
      objectives:
          AchievementObjectiveSchema.listFromJson(json[r'objectives']),
      rewards: AchievementRewardsSchema.fromJson(json[r'rewards'])!,
    );
  }
  return null;
}