diff options
Diffstat (limited to 'django')
| -rw-r--r-- | django/db/models/query.py | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/django/db/models/query.py b/django/db/models/query.py index a20237a229..fdf720cb8a 100644 --- a/django/db/models/query.py +++ b/django/db/models/query.py @@ -944,6 +944,8 @@ class QuerySet: def reverse(self): """Reverse the ordering of the QuerySet.""" + if not self.query.can_filter(): + raise TypeError('Cannot reverse a query once a slice has been taken.') clone = self._clone() clone.query.standard_ordering = not clone.query.standard_ordering return clone |