fix edit user bug

apps/herd/web/api/v1/api.py

@@ -107,7 +107,7 @@ class RancherViewSet(viewsets.ModelViewSet, DynamicSearchMixin):
     def list(self, request, *args, **kwargs):
         """ list of ranchers """
 
-        search = self.filter_query(self.queryset)  # search & filter
+        search = self.filter_query(self.queryset.order_by('-modify_date'))  # search & filter
         page = self.paginate_queryset(search)
         if page is not None:
             serializer = self.get_serializer(page, many=True)
@@ -116,6 +116,18 @@ class RancherViewSet(viewsets.ModelViewSet, DynamicSearchMixin):
     @action(
         methods=['get'],
         detail=True,
+        url_path='herds',
+        url_name='herds',
+        name='herds'
     )
-    def herds_by_rancher(self, request):
-        pass
+    def herds_by_rancher(self, request, pk=None):
+        """ list of rancher herds """
+
+        rancher = self.get_object()
+        queryset = rancher.herd.all()  # get rancher herds
+
+        # paginate queryset
+        page = self.paginate_queryset(queryset)
+        if page is not None:
+            serializer = HerdSerializer(page, many=True)
+            return self.get_paginated_response(serializer.data)