Set initial availability for full event

AKModel/availability/forms.py

@@ -12,7 +12,7 @@ from django.utils.dateparse import parse_datetime
 from django.utils.translation import gettext_lazy as _
 
 from AKModel.availability.models import Availability
-from AKModel.availability.serializers import AvailabilitySerializer
+from AKModel.availability.serializers import AvailabilitySerializer, AvailabilityFormSerializer
 from AKModel.models import Event
 
 
@@ -41,22 +41,11 @@ class AvailabilitiesFormMixin(forms.Form):
         :rtype: str
         """
         if instance:
-            availabilities = AvailabilitySerializer(
-                instance.availabilities.all(), many=True
-            ).data
+            availabilities = instance.availabilities.all()
         else:
             availabilities = []
 
-        return json.dumps(
-            {
-                'availabilities': availabilities,
-                'event': {
-                    # 'timezone': event.timezone,
-                    'date_from': str(event.start),
-                    'date_to': str(event.end),
-                },
-            }
-        )
+        return json.dumps(AvailabilityFormSerializer((availabilities, event)).data)
 
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
@@ -65,6 +54,7 @@ class AvailabilitiesFormMixin(forms.Form):
         if isinstance(self.event, int):
             self.event = Event.objects.get(pk=self.event)
         initial = kwargs.pop('initial', {})
+        if 'availabilities' not in initial:
             initial['availabilities'] = self._serialize(self.event, kwargs.get('instance'))
         if not isinstance(self, forms.BaseModelForm):
             kwargs.pop('instance')

AKModel/availability/serializers.py

@@ -4,9 +4,10 @@
 # Documentation was mainly added by us, other changes are marked in the code
 from django.utils import timezone
 from rest_framework.fields import SerializerMethodField
-from rest_framework.serializers import ModelSerializer
+from rest_framework.serializers import BaseSerializer, ModelSerializer
 
 from AKModel.availability.models import Availability
+from AKModel.models import Event
 
 
 class AvailabilitySerializer(ModelSerializer):
@@ -44,3 +45,28 @@ class AvailabilitySerializer(ModelSerializer):
     class Meta:
         model = Availability
         fields = ('id', 'start', 'end', 'allDay')
+
+
+class AvailabilityFormSerializer(BaseSerializer):
+    """Serializer to configure an availability form."""
+
+    def create(self, validated_data):
+        raise ValueError("`AvailabilityFormSerializer` is read-only.")
+
+    def to_internal_value(self, data):
+        raise ValueError("`AvailabilityFormSerializer` is read-only.")
+
+    def update(self, instance, validated_data):
+        raise ValueError("`AvailabilityFormSerializer` is read-only.")
+
+    def to_representation(self, instance: tuple[Availability, Event], **kwargs):
+        availabilities, event = instance
+
+        return {
+            'availabilities': AvailabilitySerializer(availabilities, many=True).data,
+            'event': {
+                # 'timezone': event.timezone,
+                'date_from': str(event.start),
+                'date_to': str(event.end),
+            },
+        }

AKPreferencePoll/views.py

+import json
+
 from django import forms
 from django.contrib import messages
 from django.contrib.messages.views import SuccessMessageMixin
@@ -6,6 +8,8 @@ from django.urls import reverse_lazy
 from django.utils.translation import gettext_lazy as _
 from django.views.generic import FormView
 
+from AKModel.availability.models import Availability
+from AKModel.availability.serializers import AvailabilityFormSerializer
 from AKModel.metaviews.admin import EventSlugMixin
 from AKModel.models import AK, AKPreference
 
@@ -79,8 +83,18 @@ class PreferencePollCreateView(EventSlugMixin, SuccessMessageMixin, FormView):
             )
             form.ak_obj = init["ak"]
 
+        availabilities_serialization = AvailabilityFormSerializer(
+            (
+                [Availability.with_event_length(event=self.event)],
+                self.event,
+            )
+        )
+
         context["participant_form"] = EventParticipantForm(
-            initial={"event": self.event}
+            initial={
+                "event": self.event,
+                "availabilities": json.dumps(availabilities_serialization.data),
+            }
         )
         return context