Django: fixes pagination parameter

When a user pass the `p` parameter in query,
Django returns a string. The string needs to be
casted to integer in order to be used in the paginator.
Otherwise, the response returns BadRequest.

Author: cawal

restless/dj.py

@@ -28,7 +28,7 @@ def serialize_list(self, data):
             page_size = getattr(self, 'page_size', getattr(settings, 'RESTLESS_PAGE_SIZE', 10))
             paginator = Paginator(data, page_size)
 
-            page_number = self.request.GET.get('p', 1)
+            page_number = int(self.request.GET.get('p', 1))
 
             if page_number not in paginator.page_range:
                 raise BadRequest('Invalid page number')