Update filter_has_value and characteristic_group to admin see HEA-772

Author: girumb

apps/baseline/viewsets.py

@@ -545,10 +545,17 @@ class Meta:
     )
 
     def filter_has_value(self, queryset, name, value):
+        """
+        Filter records based on whether they have meaningful values.
+        """
         if value:
-            return queryset.exclude(value__isnull=True).exclude(value__exact="")
-        else:
-            return queryset.filter(Q(value__isnull=True) | Q(value__exact=""))
+            return queryset.exclude(
+                Q(value__isnull=True)
+                | Q(value__exact="")
+                | Q(value__exact=0)
+                | Q(value__exact=[])
+                | Q(value__exact={})
+            )
 
 
 class BaselineWealthCharacteristicsValueViewSet(BaseModelViewSet):

apps/metadata/admin.py

@@ -96,6 +96,7 @@ class WealthCharacteristicAdmin(ReferenceDataAdmin):
         *translation_fields("name"),
         "aliases",
         *translation_fields("description"),
+        "characteristic_group",
     )
     list_filter = ("variable_type",)