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Added a stream transformer that sorts tasks according to their priority

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This commit is contained in:
Mariano Uvalle 2019-03-13 22:14:04 -06:00
parent 8edb15dd7c
commit aa5039d217
1 changed files with 10 additions and 1 deletions
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11
lib/src/blocs/home_bloc.dart
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@ -12,7 +12,16 @@ class HomeBloc {
final _tasks = BehaviorSubject<List<TaskModel>>();
// Stream getters.
Observable<List<TaskModel>> get userTasks => _tasks.stream;
Observable<List<TaskModel>> get userTasks =>
_tasks.stream.transform(prioritySortTransformer());
StreamTransformer<List<TaskModel>, List<TaskModel>>
prioritySortTransformer() {
return StreamTransformer.fromHandlers(handleData: (tasksList, sink) {
tasksList.sort((a, b) => b.priority.compareTo(a.priority));
sink.add(tasksList);
});
}
Future<void> fetchTasks() async {
final user = await _auth.currentUser;