AKOnline/admin.py

 from django.contrib import admin
 
-from AKModel.admin import RoomAdmin
+from AKModel.admin import RoomAdmin, RoomForm
 from AKOnline.models import VirtualRoom
 
 
+class VirtualRoomForm(RoomForm):
+    class Meta(RoomForm.Meta):
+        model = VirtualRoom
+        fields = ['name',
+                  'location',
+                  'url',
+                  'capacity',
+                  'properties',
+                  'event',
+                  ]
+
+
 @admin.register(VirtualRoom)
 class VirtualRoomAdmin(RoomAdmin):
     model = VirtualRoom
+
+    def get_form(self, request, obj=None, change=False, **kwargs):
+        if obj is not None:
+            return VirtualRoomForm
+        return super().get_form(request, obj, change, **kwargs)

AKScheduling/templates/admin/AKScheduling/scheduling.html

@@ -193,7 +193,7 @@
         <div class="col-md-2 col-lg-2" id="unscheduled-slots">
             {% for slot in slots_unscheduled %}
                 <div class="unscheduled-slot badge badge-primary" style='background-color: {{ slot.ak.category.color }}'
-                     data-event='{ "title": "{{ slot.ak.short_name }}", "duration": {"hours": "{{ slot.duration|unlocalize }}"}, "description": "{{ slot.ak.name }}", "slotID": "{{ slot.pk }}"}' data-details="{{ slot.ak.details }}">{{ slot.ak.short_name }}
+                     data-event='{ "title": "{{ slot.ak.short_name }}", "duration": {"hours": "{{ slot.duration|unlocalize }}"}, "description": "{{ slot.ak.details | escapejs }}", "slotID": "{{ slot.pk }}", "backgroundColor": "{{ slot.ak.category.color }}"}' data-details="{{ slot.ak.details }}">{{ slot.ak.short_name }}
                     ({{ slot.duration }} h)<br>{{ slot.ak.owners_list }}
                 </div>
             {% endfor %}

AKSubmission/forms.py

@@ -162,6 +162,13 @@ class AKDurationForm(forms.ModelForm):
             'event': forms.HiddenInput
         }
 
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        self.initial = {**self.initial, **kwargs['initial']}
+        event = self.initial.get('event')
+        if event is not None:
+            self.initial['duration'] = event.default_slot
+
 
 class AKOrgaMessageForm(forms.ModelForm):
     class Meta: