feat: add events app + "multi-tenants" aka multi-events

polylan_submitter/events/middleware.py

@@ -0,0 +1,27 @@
+from django.shortcuts import get_object_or_404
+
+from .models import Event
+from .scoping import current_event
+
+
+class EventContextMiddleware:
+    def __init__(self, get_response):
+        self.get_response = get_response
+
+    def __call__(self, request):
+        try:
+            return self.get_response(request)
+        finally:
+            # Not current_event.reset(token): under ASGI, process_view and this
+            # finally block can run in different contextvars.Context copies
+            # (sync_to_async(thread_sensitive=True) copies the context), and
+            # Token.reset() requires the exact Context it was created in.
+            # set(None) has no such constraint.
+            current_event.set(None)
+
+    def process_view(self, request, view_func, view_args, view_kwargs):
+        event_path = view_kwargs.get("event_path")
+        if event_path:
+            request.event = get_object_or_404(Event, path=event_path)
+            current_event.set(request.event)
+        return None