# toDocument method Null safety

1. @override

Map<String, Object?> toDocument()
override

## Implementation

    @override
    Map<String, Object?> toDocument() {
      final Map<String, dynamic>? backgroundMap =
          background != null ? background!.toDocument() : null;
      final Map<String, dynamic>? conditionsMap =
          conditions != null ? conditions!.toDocument() : null;

      Map<String, Object?> theDocument = HashMap();
      if (appId != null) {
        theDocument["appId"] = appId;
      } else {
        theDocument["appId"] = null;
      }
      if (description != null) {
        theDocument["description"] = description;
      } else {
        theDocument["description"] = null;
      }
      if (content != null) {
        theDocument["content"] = content;
      } else {
        theDocument["content"] = null;
      }
      if (background != null) {
        theDocument["background"] = backgroundMap;
      } else {
        theDocument["background"] = null;
      }
      if (conditions != null) {
        theDocument["conditions"] = conditionsMap;
      } else {
        theDocument["conditions"] = null;
      }
      return theDocument;
    }