re-create the cursor object whenever we apply read_preference

2015-06-24 22:34:38 -07:00
parent 6868f66f24
commit a7aead5138
3 changed files with 49 additions and 1 deletions
--- a/mongoengine/queryset/base.py
+++ b/mongoengine/queryset/base.py
@@ -930,6 +930,7 @@ class BaseQuerySet(object):
        validate_read_preference('read_preference', read_preference)
        queryset = self.clone()
        queryset._read_preference = read_preference
+        queryset._cursor_obj = None  # we need to re-create the cursor object whenever we apply read_preference
        return queryset

    def scalar(self, *fields):