Remove custom API filters and suggest solution via templates

awx/api/views/__init__.py

@@ -122,7 +122,6 @@ from awx.api.views.mixin import (
     UnifiedJobDeletionMixin,
     NoTruncateMixin,
 )
-from awx.api.filters import HostMetricSummaryMonthlyFieldLookupBackend
 from awx.api.pagination import UnifiedJobEventPagination
 from awx.main.utils import set_environ
 
@@ -1578,29 +1577,9 @@ class HostMetricSummaryMonthlyList(ListAPIView):
     serializer_class = serializers.HostMetricSummaryMonthlySerializer
     permission_classes = (IsSystemAdminOrAuditor,)
     search_fields = ('date',)
-    filter_backends = [HostMetricSummaryMonthlyFieldLookupBackend]
 
     def get_queryset(self):
-        queryset = self.model.objects.all()
-        past_months = self.request.query_params.get('past_months', None)
-        date_from = self._get_date_from(past_months)
-
-        queryset = queryset.filter(date__gte=date_from)
-        return queryset
-
-    @staticmethod
-    def _get_date_from(past_months, default=12, maximum=36):
-        try:
-            months_ago = int(past_months or default)
-        except ValueError:
-            months_ago = default
-        months_ago = min(months_ago, maximum)
-        months_ago = max(months_ago, 1)
-
-        date_from = datetime.date.today() - dateutil.relativedelta.relativedelta(months=months_ago)
-        # Set to beginning of the month
-        date_from = date_from.replace(day=1).isoformat()
-        return date_from
+        return self.model.objects.all()
 
 
 class HostList(HostRelatedSearchMixin, ListCreateAPIView):