many<T> method
Updates multiple documents in Firestore with a list of objects.
Implementation
Future<void> many<T>(List<T> objects, { String? subcollection }) {
if (objects.isEmpty) return Future.value();
if (objects.length > 500) {
throw ArgumentError('Batch limit exceeded. Maximum 500 objects allowed.');
}
final serializer = FS.serializers[objects[0].runtimeType];
if (serializer == null) {
throw UnsupportedError('No serializer found for type: ${objects[0].runtimeType}. Consider re-generating Firestorm data classes.');
}
WriteBatch batch = FS.instance.batch();
for (var object in objects) {
if (object.runtimeType != T) {
throw ArgumentError('All objects must be of type $T');
}
final map = serializer(object);
if (map["id"].isEmpty) {
throw NullIDException(map);
}
DocumentReference ref = FS.instance.collection(object.runtimeType.toString()).doc(map["id"]);
if (subcollection != null) {
ref = FS.instance.collection(object.runtimeType.toString()).doc(subcollection).collection(subcollection).doc(map["id"]);
}
batch.update(ref, map);
}
return batch.commit();
}