From c55fe40db04b7f3b4a0f1325d245d6e37f65bd5e Mon Sep 17 00:00:00 2001
From: Artur Borecki <me@pufereq.pl>
Date: Tue, 17 Mar 2026 12:08:07 +0100
Subject: [PATCH] feat(views.py): adapt views after for EventOccurrences

---
 kursy/views.py | 109 ++++++++++++++++++++++++++++++-------------------
 1 file changed, 68 insertions(+), 41 deletions(-)

diff --git a/kursy/views.py b/kursy/views.py
index d3390a7..292edb4 100644
--- a/kursy/views.py
+++ b/kursy/views.py
@@ -1,10 +1,11 @@
 from django import urls
 from django.contrib.auth.decorators import login_required
 from django.http import JsonResponse
-from django.shortcuts import render, redirect
+from django.shortcuts import redirect, render
+
+from home.models import EventOccurrence, EventPage
 
 from .forms import SignUpForm
-from home.models import EventPage
 
 
 def signup(request):
@@ -28,70 +29,96 @@ def calendar(request):
     return render(request, "calendar.html")
 
 
-def get_calendar_events(request):
-    # get events from database (EventPage model)
-
-    start = request.GET.get("start")
-    end = request.GET.get("end")
-    events = (
-        EventPage.objects.live()
-        .values("id", "title", "start", "end", "color", "tags")
-        .filter(start__gte=start, end__lte=end)
+def occurrence_detail(request, occurrence_id):
+    occ = (
+        EventOccurrence.objects.select_related("event").filter(id=occurrence_id).first()
+    )
+    if not occ:
+        return redirect("calendar")
+    event = occ.event.specific
+    return render(
+        request,
+        "occurrence_detail.html",
+        {
+            "occurrence": occ,
+            "event": event,
+            "user_signed_up": occ.user_signed_up(request.user),
+        },
     )
 
-    # to json
-    events_list = list(events)
 
-    # add page url to each event
-    for event in events_list:
-        event_page = EventPage.objects.live().filter(title=event["title"]).first()
-        if event_page:
-            event["url"] = event_page.url
-        if event_page.is_past:
-            event["color"] = "#666666"
+def get_calendar_occurrences(request):
+    # get occurrences from database (EventOccurrence model)
+    start = request.GET.get("start")
+    end = request.GET.get("end")
+    occurrences = EventOccurrence.objects.filter(
+        start__gte=start, end__lte=end
+    ).select_related("event")
+
+    events_list = []
+    for occ in occurrences:
+        event = occ.event.specific
+        events_list.append(
+            {
+                "id": occ.id,
+                "event_id": event.id,
+                "title": event.title,
+                "start": occ.start,
+                "end": occ.end,
+                "location": event.location,
+                "url": event.url,
+                "color": "#666666" if occ.is_past else event.color,
+                "tags": list(event.tags.values_list("name", flat=True)),
+            }
+        )
 
     return JsonResponse(events_list, safe=False)
 
 
-def get_calendar_event(request, event_id):
-    event = EventPage.objects.live().filter(id=event_id).first()
-    if not event:
-        return JsonResponse({"error": "Event not found"}, status=404)
-
+def get_calendar_occurrence(request, occurrence_id):
+    occ = (
+        EventOccurrence.objects.select_related("event").filter(id=occurrence_id).first()
+    )
+    if not occ:
+        return JsonResponse({"error": "Occurrence not found"}, status=404)
+    event = occ.event.specific
     event_dict = {
-        "id": event.id,
+        "id": occ.id,
+        "event_id": event.id,
         "title": event.title,
-        "start": event.start,
-        "end": event.end,
+        "start": occ.start,
+        "end": occ.end,
         "location": event.location,
         "url": event.url,
-        "color": event.color,
+        "color": "#666666" if occ.is_past else event.color,
         "tags": list(event.tags.values_list("name", flat=True)),
+        "attendees_count": occ.attendees_count,
     }
-
     return JsonResponse(event_dict)
 
 
-def event_signup(request, event_id):
+def occurrence_signup(request, occurrence_id):
     if not request.user.is_authenticated:
         return redirect("login")
 
-    event = EventPage.objects.live().filter(id=event_id).first()
-    if not event:
+    occ = EventOccurrence.objects.filter(id=occurrence_id).first()
+    if not occ:
         return redirect("calendar")
 
-    event.signed_up_users.add(request.user)
-    # redirect to calendar page with ?modal=event_id to show modal with event details
-    return redirect(urls.reverse("calendar") + f"?modal={event_id}")
+    occ.signed_up_users.add(request.user)
+    occ.save()
+    # redirect to calendar page with ?modal=occurrence_id to show modal with event details
+    return redirect(urls.reverse("calendar") + f"?modal={occurrence_id}")
 
 
-def event_signout(request, event_id):
+def occurrence_signout(request, occurrence_id):
     if not request.user.is_authenticated:
         return redirect("login")
 
-    event = EventPage.objects.live().filter(id=event_id).first()
-    if not event:
+    occ = EventOccurrence.objects.filter(id=occurrence_id).first()
+    if not occ:
         return redirect("calendar")
 
-    event.signed_up_users.remove(request.user)
-    return redirect(urls.reverse("calendar") + f"?modal={event_id}")
+    occ.signed_up_users.remove(request.user)
+    occ.save()
+    return redirect(urls.reverse("calendar") + f"?modal={occurrence_id}")