null safety

2021-09-10 15:24:31 +06:30
parent 2e94beac46
commit 03c5fc5016
3 changed files with 12 additions and 12 deletions
--- a/lib/pages/market/model/market_model.dart
+++ b/lib/pages/market/model/market_model.dart
@@ -9,7 +9,7 @@ import 'package:logging/logging.dart';

 class MarketModel extends BaseModel {
  final log = Logger('MarketModel');
-  StreamSubscription<QuerySnapshot> listener;
+  StreamSubscription<QuerySnapshot>? listener;
  List<Market> markets = [];

  MarketModel() {
@@ -18,7 +18,7 @@ class MarketModel extends BaseModel {

  Future<void> _loadMarkets() async {
    try {
-      if (listener != null) listener.cancel();
+      if (listener != null) listener!.cancel();

      listener = FirebaseFirestore.instance
          .collection("/$config_collection/$setting_doc_id/$markets_collection")