fromJson static method

ItemSchema? fromJson(dynamic value)

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

Implementation

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

    return ItemSchema(
      name: mapValueOfType<String>(json, r'name')!,
      code: mapValueOfType<String>(json, r'code')!,
      level: mapValueOfType<int>(json, r'level')!,
      type: mapValueOfType<String>(json, r'type')!,
      subtype: mapValueOfType<String>(json, r'subtype')!,
      description: mapValueOfType<String>(json, r'description')!,
      conditions: ConditionSchema.listFromJson(json[r'conditions']),
      effects: SimpleEffectSchema.listFromJson(json[r'effects']),
      craft: CraftSchema.fromJson(json[r'craft']),
      tradeable: mapValueOfType<bool>(json, r'tradeable')!,
    );
  }
  return null;
}