findDocRefWithConverter method

DocumentReference<T> findDocRefWithConverter({ required String id, String? collectionPathOverride, })

Finds a DocumentReference of type T based on given id.

Make sure to have specified the _toJson and _fromJson methods or else the FirestoreApi will not now how to convert the data to T.

If _tryAddLocalId is true then your data will also contain a local id field based on the _idFieldName specified in the constructor. Add this id field to your T and you will have easy access to the document id at any time.

If _tryAddLocalDocumentReference is true then your data will also contain a local reference field based on the _documentReferenceFieldName specified in the constructor. Add this reference field to your T and you will have easy access to the document reference at any time.

If you rather want to retrieve data in the raw form of a Map<String, dynamic> consider using the findDocRef method instead.

Implementation

DocumentReference<T> findDocRefWithConverter({
  required String id,
  String? collectionPathOverride,
}) {
  assert(
    _isCollectionGroup == (collectionPathOverride != null),
    'Firestore does not support finding a document by id when communicating with a collection group, '
    'therefore, you must specify the collectionPathOverride containing all parent collection and document ids '
    'in order to make this method work.',
  );
  _log.info(
      '🔥 Finding ${collectionPathOverride ?? _collectionPath()} DocumentReference with converter and id: $id..');
  return _firebaseFirestore
      .doc('${collectionPathOverride ?? _collectionPath()}/$id')
      .withConverter<T>(
    fromFirestore: (snapshot, _) {
      final data = snapshot.data() ?? {};
      try {
        return _fromJson!(
          data
              .tryAddLocalId(
                snapshot.id,
                idFieldName: _idFieldName,
                tryAddLocalId: _tryAddLocalId,
              )
              .tryAddLocalDocumentReference(
                snapshot.reference,
                referenceFieldName: _documentReferenceFieldName,
                tryAddLocalDocumentReference: _tryAddLocalDocumentReference,
              ),
        );
      } catch (error, stackTrace) {
        _log.error(
          '🔥 Unexpected ${error.runtimeType} caught while serializing ${_collectionPath()} '
          'with id: ${snapshot.id} and '
          'data: $data',
          error: InvalidJsonException(
            id: snapshot.id,
            path: snapshot.reference.path,
            api: runtimeType.toString(),
            data: data,
          ),
          stackTrace: stackTrace,
        );
        try {
          return _fromJsonError!(
            data
                .tryAddLocalId(
                  snapshot.id,
                  idFieldName: _idFieldName,
                  tryAddLocalId: _tryAddLocalId,
                )
                .tryAddLocalDocumentReference(
                  snapshot.reference,
                  referenceFieldName: _documentReferenceFieldName,
                  tryAddLocalDocumentReference: _tryAddLocalDocumentReference,
                ),
          );
        } catch (error, stackTrace) {
          _log.error(
            'Unexpected ${error.runtimeType} caught while return JSON error ${_collectionPath()} object '
            'with id: ${snapshot.id} and '
            'data: $data',
            error: error,
            stackTrace: stackTrace,
          );
          rethrow;
        }
      }
    },
    toFirestore: (data, _) {
      try {
        return _toJson!(data)
            .tryRemoveLocalId(
              idFieldName: _idFieldName,
              tryRemoveLocalId: _tryAddLocalId,
            )
            .tryRemoveLocalDocumentReference(
              referenceFieldName: _documentReferenceFieldName,
              tryRemoveLocalDocumentReference: _tryAddLocalDocumentReference,
            );
      } catch (error) {
        _log.error(
          '🔥 Unexpected ${error.runtimeType} caught while deserializing ${_collectionPath()} and '
          'data: $data',
        );
        rethrow;
      }
    },
  );
}