How to execute member method in FamilyAsyncNotifier?
(This is kind of continuous question to my previous question.)
I initialized my FamilyAsyncNotifier by passing parameter to it. However, now I am not able to execute member method in FamilyAsyncNotifier.
when it was just AsyncNotifier, member method was called like this.
await ref.read(postViewModel.notifier).fetchTargetPost(targetPostId);
However, I am not able to call it with FamilyAsyncNotifier. Does anybody know how to call member method in FamilyAsyncNotifier? I just wanted to pass parameter to AsyncNotifier but it seems like it is getting more complicated with FamilyAsyncNotifier. I really appreciate anybody's help on it.
final postViewModel =
AsyncNotifierProvider.family<PostViewModel, Post?, String>(
() => PostViewModel(),
);
class PostViewModel extends FamilyAsyncNotifier<Post?, String> implements BasePostListInterface {
late final FetchPostUseCase _fetchPostUseCase =
ref.read(fetchPostUseCaseProvider);
@override
FutureOr<Post?> build(String targetPostDocumentId) async { // <- now I am able to initialize it with parameter
return _fetchPostUseCase(targetPostDocumentId);
}
Future<Post> fetchTargetPost(String targetPostDocumentId) async { // However, I can't execute this member method from UI.
state = const AsyncValue.loading();
Post post = Post.empty();
state = await AsyncValue.guard( () async {
post = await _fetchPostUseCase(targetPostDocumentId);
return post;
});
return post;
}
}
postViewModel.notifier should be postViewModel(familykey).notifier. That is, since you have a family of providers, you must identify which provider you want the notifier for.