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using valuekeys for keeping track of mounts in query & mutations

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QueryBuilder & MutaionBuilder are now null proof
This commit is contained in:
Kingkor Roy Tirtho
2022-06-20 12:28:37 +06:00
parent 7d337e02da
commit d7635abb0e
9 changed files with 134 additions and 56 deletions
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packages/fl_query/lib/mutation_builder.dart
+36 -11
View File
@@ -1,6 +1,7 @@
import 'package:fl_query/models/mutation_job.dart';
import 'package:fl_query/mutation.dart';
import 'package:fl_query/query_bowl.dart';
import 'package:fl_query/utils.dart';
import 'package:flutter/widgets.dart';
class MutationBuilder<T extends Object, V> extends StatefulWidget {
@@ -36,38 +37,62 @@ class _MutationBuilderState<T extends Object, V>
extends State<MutationBuilder<T, V>> {
late QueryBowl queryBowl;
late ValueKey<String> uKey;
late Mutation<T, V> mutation;
@override
void initState() {
super.initState();
uKey = ValueKey<String>(uuid.v4());
mutation = Mutation<T, V>.fromOptions(widget.job);
WidgetsBinding.instance.addPostFrameCallback((_) {
queryBowl = QueryBowl.of(context);
queryBowl.addMutation<T, V>(
widget.job,
mutation = queryBowl.addMutation<T, V>(
mutation,
onData: widget.onData,
onError: widget.onError,
onMutate: widget.onMutate,
mount: widget,
key: uKey,
);
});
}
@override
void didUpdateWidget(covariant MutationBuilder<T, V> oldWidget) {
if (oldWidget.onData != widget.onData && oldWidget.onData != null) {
mutation.onDataListeners.remove(oldWidget.onData);
if (widget.onData != null) mutation.onDataListeners.add(widget.onData!);
}
if (oldWidget.onError != widget.onError && oldWidget.onError != null) {
mutation.onErrorListeners.remove(oldWidget.onError);
if (widget.onError != null)
mutation.onErrorListeners.add(widget.onError!);
}
if (oldWidget.onMutate != widget.onMutate && oldWidget.onMutate != null) {
mutation.onMutateListeners.remove(oldWidget.onMutate);
if (widget.onMutate != null)
mutation.onMutateListeners.add(widget.onMutate!);
}
super.didUpdateWidget(oldWidget);
}
@override
void dispose() {
final mutation = queryBowl.getMutation(widget.job.mutationKey);
mutation?.unmount(widget);
if (widget.onData != null) mutation?.onDataListeners.remove(widget.onData);
mutation.unmount(uKey);
if (widget.onData != null) mutation.onDataListeners.remove(widget.onData);
if (widget.onError != null)
mutation?.onErrorListeners.remove(widget.onError);
mutation.onErrorListeners.remove(widget.onError);
if (widget.onMutate != null)
mutation?.onMutateListeners.remove(widget.onMutate);
mutation.onMutateListeners.remove(widget.onMutate);
super.dispose();
}
@override
Widget build(BuildContext context) {
queryBowl = QueryBowl.of(context);
final mutation = queryBowl.getMutation<T, V>(widget.job.mutationKey);
if (mutation == null) return Container();
return widget.builder(context, mutation);
final latestMutation =
queryBowl.getMutation<T, V>(mutation.mutationKey) ?? mutation;
return widget.builder(context, latestMutation);
}
}