add notify_sessions module

core/notify_sessions/models.py

@@ -0,0 +1,48 @@
+import logging
+
+from django.db import models
+from asgiref.sync import sync_to_async
+from channels.layers import get_channel_layer
+
+from authentication.models import ExtendedUser
+
+
+class SystemEvent(models.Model):
+    TYPE_CHOICES = [('ticket_created', 'ticket_created'),
+                    ('ticket_updated', 'ticket_updated'),
+                    ('ticket_deleted', 'ticket_deleted'),
+                    ('item_created', 'item_created'),
+                    ('item_updated', 'item_updated'),
+                    ('item_deleted', 'item_deleted'),
+                    ('user_created', 'user_created'),
+                    ('event_created', 'event_created'),
+                    ('event_updated', 'event_updated'),
+                    ('event_deleted', 'event_deleted'), ]
+    id = models.AutoField(primary_key=True)
+    timestamp = models.DateTimeField(auto_now_add=True)
+    user = models.ForeignKey(ExtendedUser, models.SET_NULL, null=True)
+    type = models.CharField(max_length=255, choices=TYPE_CHOICES)
+    reference = models.IntegerField(blank=True, null=True)
+
+
+async def trigger_event(user, type, reference=None):
+    log = logging.getLogger('server.log')
+    log.info(f"Triggering event {type} for user {user} with reference {reference}")
+    try:
+        event = await sync_to_async(SystemEvent.objects.create, thread_sensitive=True)(user=user, type=type,
+                                                                                       reference=reference)
+        channel_layer = get_channel_layer()
+        await channel_layer.group_send(
+            'general',
+            {
+                'type': 'generic.event',
+                'name': 'send_message_to_frontend',
+                'message': "event_trigered_from_views",
+                'event_id': event.id,
+            }
+        )
+        log.info(f"SystemEvent {event.id} triggered")
+        return event
+    except Exception as e:
+        log.error(e)
+        raise e