Added ability to filter by more than one regions

solution/pulse/countries/views.py

@@ -1,3 +1,4 @@
+from django.db.models import Q
 from rest_framework.generics import ListAPIView, RetrieveAPIView
 
 from countries.models import Country
@@ -6,9 +7,18 @@ from countries.serializers import CountrySerializer
 
 class CountryListView(ListAPIView):
     queryset = Country.objects.all().order_by("alpha2")
-    filterset_fields = ["region"]
     serializer_class = CountrySerializer
 
+    def filter_queryset(self, queryset):
+        regions = self.request.query_params.get("region")
+        if regions:
+            regions_list = regions.split(",")
+            query = Q()
+            for region in regions_list:
+                query |= Q(region=region)
+            queryset = queryset.filter(query)
+        return queryset
+
 
 class CountryByAlpha2View(RetrieveAPIView):
     queryset = Country.objects.all()