display club past news

club/views.py

@@ -37,6 +37,7 @@ from django.contrib.messages.views import SuccessMessageMixin
 from django.core.exceptions import NON_FIELD_ERRORS, PermissionDenied, ValidationError
 from django.core.paginator import InvalidPage, Paginator
 from django.db.models import F, Prefetch, Q, Sum
+from django.db.models.expressions import OuterRef, Subquery
 from django.db.models.functions import Length
 from django.http import Http404, StreamingHttpResponse
 from django.shortcuts import get_object_or_404, redirect
@@ -71,7 +72,7 @@ from club.models import (
     MailingSubscription,
     Membership,
 )
-from com.models import Poster
+from com.models import NewsDate, Poster
 from com.views import (
     PosterCreateBaseView,
     PosterDeleteBaseView,
@@ -80,6 +81,7 @@ from com.views import (
 )
 from core.auth.mixins import CanEditMixin, PermissionOrClubBoardRequiredMixin
 from core.models import Page, PageRev
+from core.utils import get_semester_code
 from core.views import BasePageEditView, DetailFormView, UseFragmentsMixin
 from core.views.mixins import (
     AllowFragment,
@@ -935,3 +937,29 @@ class PosterDeleteView(ClubTabsMixin, PosterDeleteBaseView):
 
     def get_success_url(self):
         return reverse_lazy("club:poster_list", kwargs={"club_id": self.club.id})
+
+
+class ClubNewsView(PermissionRequiredMixin, DetailView):
+    pk_url_kwarg = "club_id"
+    model = Club
+    permission_required = "club.view_club"
+    template_name = "club/club_news_list.jinja"
+
+    def get_context_data(self, **kwargs: Any):
+        events = list(
+            self.object.news.viewable_by(self.request.user)
+            .annotate(
+                first_date=Subquery(
+                    NewsDate.objects.filter(news_id=OuterRef("pk"))
+                    .order_by("start_date")
+                    .values("start_date")[:1]
+                ),
+            )
+            .prefetch_related("dates")
+            .order_by("-first_date")
+        )
+        return super().get_context_data(**kwargs) | {
+            "events": itertools.groupby(
+                events, key=lambda event: get_semester_code(event.first_date.date())
+            )
+        }