68 lines
1.8 KiB
Dart
68 lines
1.8 KiB
Dart
import 'dart:math';
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import 'package:fl_query/fl_query.dart';
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import 'package:flutter/material.dart';
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final mutationVariableKeyJob = MutationJob.withVariableKey<String, double>(
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preMutationKey: "mutation-example",
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task: (queryKey, variables) {
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return Future.value("$variables");
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},
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);
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class MutationVariableKeyExample extends StatefulWidget {
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const MutationVariableKeyExample({Key? key}) : super(key: key);
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@override
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State<MutationVariableKeyExample> createState() =>
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_MutationVariableKeyExampleState();
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}
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class _MutationVariableKeyExampleState
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extends State<MutationVariableKeyExample> {
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late double id;
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@override
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void initState() {
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super.initState();
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id = Random().nextDouble();
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}
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@override
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Widget build(BuildContext context) {
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return Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Text(
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"# Mutation Variable Key Example",
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style: Theme.of(context).textTheme.headline5,
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),
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MutationBuilder<String, double>(
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job: mutationVariableKeyJob(id.toString()),
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builder: (context, mutation) {
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return Row(
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children: [
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Text("${mutation.mutationKey} Result: ${mutation.data}"),
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ElevatedButton(
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child: const Text("Generate Random Data"),
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onPressed: () {
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mutation.mutate(Random().nextDouble());
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},
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),
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ElevatedButton(
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child: const Text("New Mutation"),
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onPressed: () {
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setState(() {
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id = Random().nextDouble();
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});
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},
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),
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],
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);
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},
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)
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],
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);
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}
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}
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