Fix Page issue

Fixes the error generated when trying to select a different page.

ckanext/rating/controller.py

@@ -49,7 +49,7 @@ class RatingPackageController(PackageController):
     def search(self):
         cur_page = request.params.get('page')
         if cur_page is not None:
-            c.current_page = self._get_page_number(request.params)
+            c.current_page = h.get_page_number(request.params)
         else:
             c.current_page = 1
         c.pkg_type = 'dataset'