Wine regions route

apps/location/models.py

@@ -169,6 +169,9 @@ class Address(models.Model):
 class WineRegionQuerySet(models.QuerySet):
     """Wine region queryset."""
 
+    def with_sub_region_related(self):
+        return self.prefetch_related('wine_sub_region')
+
 
 class WineRegion(models.Model, TranslatedFieldsMixin):
     """Wine region model."""
@@ -207,6 +210,7 @@ class WineSubRegion(models.Model):
     """Wine sub region model."""
     name = models.CharField(_('name'), max_length=255)
     wine_region = models.ForeignKey(WineRegion, on_delete=models.PROTECT,
+                                    related_name='wine_sub_region',
                                     verbose_name=_('wine sub region'))
     old_id = models.PositiveIntegerField(_('old id'), default=None,
                                          blank=True, null=True)

apps/location/serializers/common.py

@@ -189,3 +189,14 @@ class WineSubRegionBaseSerializer(serializers.ModelSerializer):
             'id',
             'name',
         ]
+
+
+class WineRegionSerializer(WineRegionBaseSerializer):
+    """Wine region w/ subregion serializer"""
+
+    wine_sub_region = WineSubRegionBaseSerializer(allow_null=True, many=True)
+
+    class Meta(WineRegionBaseSerializer.Meta):
+        fields = WineRegionBaseSerializer.Meta.fields + [
+            'wine_sub_region'
+        ]

apps/location/urls/common.py

@@ -17,4 +17,6 @@ urlpatterns = [
 
     path('regions/', views.RegionListView.as_view(), name='region-list'),
     path('regions/<int:pk>/', views.RegionRetrieveView.as_view(), name='region-retrieve'),
+
+    path('wine-regions/', views.WineRegionListView.as_view(), name='wine-region-list'),
 ]

apps/location/views/common.py

@@ -63,6 +63,15 @@ class RegionListView(RegionViewMixin, generics.ListAPIView):
     serializer_class = serializers.CountrySerializer
 
 
+class WineRegionListView(generics.ListAPIView):
+    """List view for model WineRegion"""
+    pagination_class = None
+    model = models.WineRegion
+    permission_classes = (permissions.AllowAny,)
+    queryset = models.WineRegion.objects.with_sub_region_related().all()
+    serializer_class = serializers.WineRegionSerializer
+
+
 class RegionDestroyView(RegionViewMixin, generics.DestroyAPIView):
     """Destroy view for model Country"""
     serializer_class = serializers.CountrySerializer