Benachrichtigungen fixen mit Redis

django/play/consumers/lobby.py

@@ -3,6 +3,7 @@ import json
 import asyncio
 from ..models import QuizGame, QuizGameParticipant
 from channels.db import database_sync_to_async
+import redis
 
 # Dictionary to track inactive check tasks and active connections per game
 game_check_tasks = {}
@@ -10,6 +11,8 @@ game_connections = {}
 
 class LobbyConsumer(AsyncWebsocketConsumer):
 
+    r = redis.Redis(host='localhost', port=6379, db=0, decode_responses=True)
+
     async def connect(self):
         self.join_code = self.scope['url_route']['kwargs']['join_code']
         self.room_group_name = f'lobby_{self.join_code}'
@@ -142,12 +145,21 @@ class LobbyConsumer(AsyncWebsocketConsumer):
             ))()
 
             
-            # Send join notification for new participants
+            # Zustand laden
             try:
-                prev_names = set(p['display_name'] for p in self.last_participants) if hasattr(self, 'last_participants') else set()
+                r = redis.Redis(host='localhost', port=6379, db=0, decode_responses=True)
+
+                # Alte Teilnehmer aus Redis holen
+                data = r.get(f"last_participants_{self.room_group_name}")
+                prev_names = set(json.loads(data)) if data else set()
+
+                # Aktuelle Teilnehmer aus dem Argument extrahieren
                 current_names = set(p['display_name'] for p in participants)
+
+                # Neue Teilnehmer bestimmen
                 new_participants = current_names - prev_names
-                
+
+                # Benachrichtigung für neue Teilnehmer versenden
                 for name in new_participants:
                     await self.channel_layer.group_send(
                         self.room_group_name,
@@ -156,9 +168,12 @@ class LobbyConsumer(AsyncWebsocketConsumer):
                             'player_name': name
                         }
                     )
+
+                # Teilnehmerliste in Redis aktualisieren
+                r.set(f"last_participants_{self.room_group_name}", json.dumps(list(current_names)))
+
             except Exception as e:
-                print(f'Error sending join notifications: {e}')
-            
+                print(f"Error in send_join_notifications: {e}")
             self.last_participants = participants
             return participants
         except QuizGame.DoesNotExist: