Set default archive filter to False in CaseCollectionFilter

atlas/filters.py

@@ -21,6 +21,7 @@ from .models import (
 )
 from django.contrib.auth.models import User
 from django.db.models import Q
+from django.http import QueryDict
 
 
 def get_authors(request):
@@ -85,6 +86,22 @@ class CaseCollectionFilter(django_filters.FilterSet):
         user=None,
         request=None,
     ):
+        # Default the archive filter to False when not provided so collections
+        # are not archived by default in listings.
+        if data is None:
+            data = QueryDict('', mutable=True)
+            data['archive'] = 'false'
+        else:
+            # QueryDict instances need to be copied to be mutable
+            try:
+                if 'archive' not in data:
+                    data = data.copy()
+                    data['archive'] = 'false'
+            except Exception:
+                # Fallback for non-QueryDict mappings
+                if isinstance(data, dict) and 'archive' not in data:
+                    data = dict(data)
+                    data['archive'] = 'false'
         if not request.user.groups.filter(name="atlas_editor").exists():
             queryset = queryset.prefetch_related("author").filter(
                 author__id=request.user.id