Updating Query.limit from int32 to google.protobuf.Int32Value.

Author: dhermes

gcloud/datastore/query.py

@@ -395,7 +395,7 @@ def next_page(self):
             pb.end_cursor = base64.urlsafe_b64decode(end_cursor)
 
         if self._limit is not None:
-            pb.limit = self._limit
+            pb.limit.value = self._limit
 
         pb.offset = self._offset
 

gcloud/datastore/test_query.py

@@ -407,7 +407,7 @@ def test_next_page_no_cursors_no_more_w_offset_and_limit(self):
                          [{'kind': self._KIND, 'id': self._ID}])
         self.assertEqual(entities[0]['foo'], u'Foo')
         qpb = _pb_from_query(query)
-        qpb.limit = 13
+        qpb.limit.value = 13
         qpb.offset = 29
         EXPECTED = {
             'dataset_id': self._DATASET,
@@ -544,7 +544,7 @@ def test_empty(self):
         self.assertEqual(list(cfilter.filter), [])
         self.assertEqual(pb.start_cursor, b'')
         self.assertEqual(pb.end_cursor, b'')
-        self.assertEqual(pb.limit, 0)
+        self.assertEqual(pb.limit.value, 0)
         self.assertEqual(pb.offset, 0)
 
     def test_projection(self):