Fix error states for SQL console

Author: simolus3

demos/supabase-todolist-drift/lib/main.dart

@@ -8,6 +8,7 @@ import 'package:logging/logging.dart';
 
 import 'navigation.dart';
 import 'supabase.dart';
+import 'utils/provider_observer.dart';
 
 void main() async {
   Logger.root.level = Level.INFO;
@@ -29,7 +30,10 @@ void main() async {
   WidgetsFlutterBinding.ensureInitialized();
   await loadSupabase();
 
-  runApp(const ProviderScope(child: MyApp()));
+  runApp(const ProviderScope(
+    observers: [LoggingProviderObserver()],
+    child: MyApp(),
+  ));
 }
 
 class MyApp extends HookConsumerWidget {

demos/supabase-todolist-drift/lib/screens/sql_console.dart

@@ -46,14 +46,15 @@ final class SqlConsolePage extends HookConsumerWidget {
               ),
             ),
           ),
-          Expanded(
+          if (rows case AsyncData(:final value))
+            Expanded(
+                child: SingleChildScrollView(
+              scrollDirection: Axis.horizontal,
               child: SingleChildScrollView(
-            scrollDirection: Axis.horizontal,
-            child: SingleChildScrollView(
-              scrollDirection: Axis.vertical,
-              child: ResultSetTable(data: rows.value),
-            ),
-          ))
+                scrollDirection: Axis.vertical,
+                child: ResultSetTable(data: value),
+              ),
+            ))
         ],
       ),
     );

demos/supabase-todolist-drift/lib/utils/provider_observer.dart

@@ -0,0 +1,22 @@
+import 'package:logging/logging.dart';
+import 'package:riverpod/riverpod.dart';
+
+final class LoggingProviderObserver extends ProviderObserver {
+  static final _log = Logger('provider');
+
+  const LoggingProviderObserver();
+
+  @override
+  void didUpdateProvider(ProviderBase<Object?> provider, Object? previousValue,
+      Object? newValue, ProviderContainer container) {
+    if (newValue case AsyncError(:final error, :final stackTrace)) {
+      _log.warning('$provider emitted async error', error, stackTrace);
+    }
+  }
+
+  @override
+  void providerDidFail(ProviderBase<Object?> provider, Object error,
+      StackTrace stackTrace, ProviderContainer container) {
+    _log.warning('$provider threw exception', error, stackTrace);
+  }
+}