Proyecto LCX Dispatcharr multicuenta

core/signals.py

@@ -0,0 +1,39 @@
+from django.db.models.signals import pre_delete, post_save
+from django.dispatch import receiver
+from django.core.exceptions import ValidationError
+from .models import StreamProfile, CoreSettings, NETWORK_ACCESS_KEY
+
+@receiver(pre_delete, sender=StreamProfile)
+def prevent_deletion_if_locked(sender, instance, **kwargs):
+    if instance.locked:
+        raise ValidationError("This profile is locked and cannot be deleted.")
+
+@receiver(post_save, sender=CoreSettings)
+def handle_network_access_update(sender, instance, **kwargs):
+    """Invalidate cache and sync notifications when network access settings change."""
+    if instance.key == NETWORK_ACCESS_KEY:
+        from django.core.cache import cache
+        from core.developer_notifications import sync_developer_notifications
+        import logging
+
+        logger = logging.getLogger(__name__)
+
+        # Invalidate all notification condition caches
+        try:
+            cache.delete_pattern('dev_notif_condition_*')
+            logger.info("Invalidated notification condition cache due to network access settings update")
+        except Exception as e:
+            logger.warning(f"Failed to delete cache pattern: {e}")
+            # Fallback: try to clear entire cache (if delete_pattern not supported)
+            try:
+                cache.clear()
+            except Exception:
+                pass
+
+        # Re-sync developer notifications to re-evaluate conditions
+        # (websocket notification is sent by sync_developer_notifications)
+        try:
+            sync_developer_notifications()
+            logger.info("Re-synced developer notifications after network access settings update")
+        except Exception as e:
+            logger.error(f"Failed to sync developer notifications: {e}")