fix article filtering

shared/models/main.py

@@ -1107,45 +1107,16 @@ class MainHomePageMixin(
 
         context["article_data_list"] = self.materialize_shared_articles_query(
             self.append_all_shared_articles_query(
-                self.article_page_model.objects.live().all()
+                self.article_page_model.objects.live().child_of(self.articles_page).all()
             ).order_by("-union_timestamp")[:3]
         )
 
         return context
 
-    def get_region_response(self, request):
-        context = {}
-        if request.GET.get("region", None) == "VSK":
-            sorted_article_qs = self.article_page_model.objects.filter(
-                region__isnull=False
-            ).order_by("-timestamp")
-
-            context = {"article_data_list": sorted_article_qs[:3]}
-        else:
-            sorted_article_qs = self.article_page_model.objects.filter(
-                region=request.GET.get("region", None)
-            )[:3]
-
-            context = {"article_data_list": sorted_article_qs[:3]}
-
-        data = {
-            "html": render(
-                request, "styleguide2/includes/small_article_preview.html", context
-            ).content.decode("utf-8")
-        }
-
-        return JsonResponse(data=data, safe=False)
-
-    def serve(self, request, *args, **kwargs):
-        if request.META.get("HTTP_X_REQUESTED_WITH") == "XMLHttpRequest":
-            if "region" in request.GET:
-                return self.get_region_response(request)
-
-        return super().serve(request, *args, **kwargs)
-
     @cached_property
     def newsletter_subscribe_url(self):
         newsletter_subscribe = self.reverse_subpage("newsletter_subscribe")
+
         return (
             self.url + newsletter_subscribe
             if self.url is not None
@@ -1303,7 +1274,7 @@ class MainArticlesPageMixin(
     def get_base_shared_articles_query(self, filter: models.Q):
         return self.materialize_shared_articles_query(
             self.append_all_shared_articles_query(
-                self.root_page.article_page_model.objects.filter(filter).live().all()
+                self.root_page.article_page_model.objects.filter(filter).live().child_of(self).all()
             ).order_by("-union_timestamp")
         )