display club past news

club/templates/club/club_news_list.jinja

@@ -0,0 +1,79 @@
+{% extends "core/base.jinja" %}
+
+{% block content %}
+  {% if club.has_rights_in_club(user) %}
+    <a class="btn btn-blue" href="{{ url("com:news_new") }}">
+      <i class="fa fa-plus"></i> {% trans %}Create news{% endtrans %}
+    </a>
+  {% endif %}
+
+  {% for semester_code, semester_events in events %}
+    <h3>{{ semester_code }}</h3>
+    {% for event in semester_events %}
+      <details class="accordion">
+        <summary>{{ event.title }}</summary>
+        <div class="accordion-content">
+
+          {# Events that occur weekly from the start to the end of the semester
+             would take a lot of space if shown by default.
+             Thus, if the event has more than one date, those are
+             hidden by a details element.
+             If there is only one date, it is directly displayed. #}
+          {% set dates = event.dates.all()|list %}
+          {% if dates|length == 1 %}
+            <em>
+              <time datetime="{{ dates[0].start_date.isoformat(timespec="seconds") }}">
+                {{ dates[0].start_date|localtime|date(DATETIME_FORMAT) }},
+                {{ dates[0].start_date|localtime|time(DATETIME_FORMAT) }}
+              </time> -
+              <time datetime="{{ dates[0].end_date.isoformat(timespec="seconds") }}">
+                {{ dates[0].end_date|localtime|date(DATETIME_FORMAT) }},
+                {{ dates[0].end_date|localtime|time(DATETIME_FORMAT) }}
+              </time>
+            </em>
+          {% else %}
+            <details>
+              <summary>
+                {% trans trimmed nb_occurrences=dates|length %}
+                  Dates ({{ nb_occurrences }} occurrences)
+                {% endtrans %}
+              </summary>
+              <ul>
+                {% for d in dates %}
+                  <li>
+                    <time datetime="{{ d.start_date.isoformat(timespec="seconds") }}">
+                      {{ d.start_date|localtime|date(DATETIME_FORMAT) }},
+                      {{ d.start_date|localtime|time(DATETIME_FORMAT) }}
+                    </time> -
+                    <time datetime="{{ d.end_date.isoformat(timespec="seconds") }}">
+                      {{ d.end_date|localtime|date(DATETIME_FORMAT) }},
+                      {{ d.end_date|localtime|time(DATETIME_FORMAT) }}
+                    </time>
+                  </li>
+                {% endfor %}
+              </ul>
+            </details>
+          {% endif %}
+
+          <h4>{% trans %}Permalink{% endtrans %}</h4>
+          <p>{{ request.build_absolute_uri(event.get_absolute_url())|urlize }}</p>
+
+          <h4>{% trans %}Summary{% endtrans %}</h4>
+          {% if event.summary %}
+            {{ event.summary|markdown }}
+          {% else %}
+            <p><em>{% trans %}No summary{% endtrans %}</em></p>
+          {% endif %}
+
+          <h4>{% trans %}Description{% endtrans %}</h4>
+          {% if event.content %}
+            {{ event.content|markdown }}
+          {% else %}
+            <p><em>{% trans %}No detailed description{% endtrans %}</em></p>
+          {% endif %}
+        </div>
+      </details>
+    {% endfor %}
+    <br />
+  {% endfor %}
+{% endblock %}

club/urls.py

@@ -31,6 +31,7 @@ from club.views import (
     ClubListView,
     ClubMailingView,
     ClubMembersView,
+    ClubNewsView,
     ClubOldMembersView,
     ClubPageEditView,
     ClubPageHistView,
@@ -136,4 +137,5 @@ urlpatterns = [
         PosterDeleteView.as_view(),
         name="poster_delete",
     ),
+    path("<int:club_id>/news/", ClubNewsView.as_view(), name="news_list"),
 ]

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())
+            )
+        }