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@ijoschek ijoschek/.\lib\scr\home.dart Secret
Last active Dec 5, 2018

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flutter_firestore_tut
//...
class _Home extends State<StatefulWidget> {
//...
void interact() async {
final DocumentReference postRef =
Firestore.instance.collection('stats').document('interactions');
await Firestore.instance.runTransaction((Transaction tx) async {
DocumentSnapshot postSnapshot = await tx.get(postRef);
if (postSnapshot.exists) {
await tx.update(postRef,
<String, dynamic>{'count': postSnapshot.data['count'] + 1});
}
});
}
//...
@override
Widget build(BuildContext context) {
return Scaffold(
//...
}
}
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